Datagrid with colored columns pausing during setup

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  - 1
    - 2 Simple Questions Hi everyone, I have what I think are 2 pretty simple questions. I know I have done it before, but can't remember how I did it. #1: I have a windows form with a textbox. The textbox is getting filled from within a function. I need to have the scroll buttons on the text box accessable at all times, not just when the loop that fills it gets back around to the application.doevents line. I'm pretty sure there is an easy way to do this with threading. #2: This one is really dumb, but I'm having a slow day. How can I get the text box to autoscroll to the bottom everytime & add text dynamically to it? Thanks all in advance, Matt Tag: Datagrid with colored columns pausing during setup Tag: 83073
  - 2
    - ListBox: How to only fire SelectedIndexChanged if the an item is directly selected. I would like to only fire SelectedIndexChanged if the an item is directly selected. example: I have a listbox with a few items in it. These items only half fill the listbox. If I click in the listbox, but not directly on an item (that is in the bottom half of the listbox), the bottom item is selected. Any ideas? Thanks! Felix Tag: Datagrid with colored columns pausing during setup Tag: 83072
  - 3
    - Creating a Form From A Non-UI Thread I have a non-UI assembly that contains a Form similar to the MSN Messenger pop-up that appears when a user comes online. I have a Timer in this assembly that on regular intervals goes and looks for new information and if it finds any, displays the Form to the user right above the System Tray. My problem is that the Form comes up alright, but it seems to not be getting any Windows events like Paint and Click. Also, when I put my mouse over the Form an hour-glass displays. I am assuming that there is a problem with the Form being called from the Timer thread and have been trying to figure out a solution with no luck. One note, Iâ??m trying to design this assembly to be called from a normal WinForms application and an application that starts in the System Tray so it might or might not have a Form running. Any help would be greatly appreciated! Iâ??m done with this project except for this one â??majorâ?? problem. Thanks, David ===================== David McCarter www.vsdntips.com Tag: Datagrid with colored columns pausing during setup Tag: 83070
  - 4
    - FileSystemWatcher fails I have an app (that should really be a service, but I haven't got round to it yet) that just monitors a network folder via a filesystemwatcher for new files and then does its thing. Generally, it works fine, but it fails about once a month - which is about one every 2-3 hundred files. No error message or exceptions... it just fails to notice that the file has appeared. After that, any other new files are also ignored. I'm thinking of switching to a dir function running every ten seconds or so....but was wondering if anyone had any ideas about the situation. Tag: Datagrid with colored columns pausing during setup Tag: 83068
  - 5
    - Colour schemes Has anyone done any research (or even just any ideas) on the best colour scheme to use for forms? I don't like the default grey background.... but is it the best? Thoughts? Tag: Datagrid with colored columns pausing during setup Tag: 83067
  - 6
    - ComboBox DroppedDown property bug. If set in constructor, WndProc messages are missing I believe I have found a bug in the System.Windows.Forms.ComboBox object. Quick background, there is a ComboBox event for when the drop down list is shown, but not one when it is closed. This is because the ComboBox does not receive any messages when it's drop down list is being closed. It's parent is what receives the CBN_CLOSEUP event notification (from the WM_COMMAND message). I wanted to know when a ComboBox was closing its drop down list so I created a UserControl with one ComboBox in it. I then overrode the UserControl's WndProc, looked for WM_COMMAND message and so on. Now for the bug... When I use this UserControl on a form, all worked fine. But to get the UserControl to act more like a ComboBox, I have to expose all the ComboBox properties by declaring them through the UserControl as properties. The first one I did was the DroppedDown property. Here is where the bug comes in. In the constructor (New subroutine) of the MainForm for the windows app, set the DroppedDown property of the UserControl to False. Now when you run the app the WM_COMMAND message is never sent to the UserControl. Uncomment out the DroppedDown = False in the Main Form constructor and the WM_COMMAND messages are now getting sent again. The steps to reproduce are below. I am not sure what is all effects, but I am running VS 2003. I believe it occurs in both C# and VB.NET along with Debug and Release mode. Steps to reproduce... -Open VS and create a new VB Windows Application (named MyTestApp) -Once it is open, right click on the project in the Solution Explorer, and select Add User Control (named UserControl1) -In the user control, add one combo box (named ComboBox1) -In the code for the user control, override the WndProc function (copy and paste) (Note that &H111 is WM_COMMAND) Protected Overrides Sub WndProc(ByRef msg As Message) MyBase.WndProc(msg) If (msg.Msg = &H111) Then Dim x As String = "" End If End Sub -Also in the code for the user control, expose the ComboBox's DroppedDown property (copy and paste) (Make sure to include the DefaultValue property) <System.ComponentModel.DefaultValue(False)> _ Public Property DroppedDown() As Boolean Get Return ComboBox1.DroppedDown End Get Set(ByVal Value As Boolean) ComboBox1.DroppedDown = Value End Set End Property -You are done with the UserControl, now go to the designer for the Main Form (Form1) -Drag a ComboBox from the "Windows Forms" tab in the toolbox anywhere on the form -Go in the code for the Main Form and change the two occurances of "System.Windows.Forms.ComboBox" to "MyTestApp.UserControl1" -In the UserControl code, put a breakpoint on the Dim x As String = "" line and press F5 to run the application. -You should see the breakpoint hit before the app even fully loads because the UserControl will have focus, which CBN_SETFOCUS is on of the WM_COMMANDs that is sent -Once you verify that the breakpoint is hit, press Shift+F5 to stop debugging -Now go into the Main Form's code and find the New() sub (it will be in the "Windows Form Designer generated code" region) -Right after the InitializeComponent() call, set the DroppedDown property of the UserControl to false (copy and paste) ComboBox1.DroppedDown = False -Make sure your breakpoint is still set on the same line and press F5 to run the app again. This time you will notice that by setting the DroppedDown property in the constructor, the UserControl now does not receive any WM_COMMAND messages. Comment out the line and you will see that once again it receives the messages. I cant figure out why this is. It seems to be a bug, but I would imagine it does not come up that often. Here is a similar topic I found but I am not sure if it is the same behavior. It references a HotFix from Microsoft but that does not sound like the same behavior I am getting. http://groups-beta.google.com/group/microsoft.public.dotnet.framework.windowsforms.designtime/browse_thread/thread/2bf345185534b268/b02fad6f3c9afc85 Tag: Datagrid with colored columns pausing during setup Tag: 83062
  - 7
    - HowTo:Change disabled control font color? When a textbox/text area/dropdownlist is disabled, the font is grayed out. Can I change the default color of disabled control to black? I tried to override Disable/Enable property of textbox and set 'ReadyOnly' instead of diabling the control. It works for textbox only because dropdown list doesn't have 'READYONLY' property. Any suggestion? I am thinking change system font settings from inside the application. Anybody had the luck doing this? strout Tag: Datagrid with colored columns pausing during setup Tag: 83059
  - 8
    - Problem with a timer I have a Winform running and a timer (winform) firing each 3 min to make a transmition of data..I'm ok about the UI stoping for a while, the problems is that the timer fires two times in every interval, even if I use time.Stop. It seems that the stop instruction is not stoping the timer associated counter Private Sub TimerTransmite_Tick(....) TimerTrans.Stop() Transfer() TimerTrans.Start() End Any Sug? Tag: Datagrid with colored columns pausing during setup Tag: 83053
  - 9
    - Pre Load a form Is there any way to preload a form in VB.NET of how can I avoid seeing when a form is loading, how it is painting all the controls it contains? I think in VB6 I could use Load(frmTest) and after it is loaded, show it. Thanks Tag: Datagrid with colored columns pausing during setup Tag: 83049
  - 10
    - Full Row Selection In DataGrid Hi, I need to implement the full row selection on the datagrid, just as it works on the list view, You know if you press control, or shift, and then click on a row, well, select rows just as windows explorer does. I have done somthing like catching the mouse_down event, get the row clicked, and select it, but I have problems when you need to drag this rows, because I dont want them to deselect, and they deselect. I another thing, if I put the same logic on the mouse_up event, it does not work, I dont know why, the grid doesn't render after the mouse_up event. Any Ideas? Or if you have already done this, please share it... =) Tag: Datagrid with colored columns pausing during setup Tag: 83041
  - 11
    - How to launch a no-touch deploy windows form application from Brow I have the need to kick off a no-touch deploy windows form application from a browser. I have successfully launched simple applications but this application is using remoting and serialization and has the need of a configuration file. Our situation is that we are moving towards having an internet portal which will serve as a launching pad for all of our interanal applications. At the same time we're also hoping to move towards more thick client business apps. Is there a way to seemlessly launch an application which requires remoting, serialization, and a configuration file? Tag: Datagrid with colored columns pausing during setup Tag: 83039
  - 12
    - DateTimePicker default value I am working on an application created by another person. And I am confused with the default value of the dateTimePicker. One dateTimePicker always set the value to the current date/time in property window. (actually no value is set by look at the generated code) But another one had the value set to a past date and I just CANNOT remove it from property window. I can easily set the value in code but anyone know how to remove the value. TIA. John Tag: Datagrid with colored columns pausing during setup Tag: 83038
  - 13
    - How to get the Windows user and group names. Does Anyone know how to get the Windows user and group names? Thanks. Tag: Datagrid with colored columns pausing during setup Tag: 83036
  - 14
    - Dynamically Added Textbox (no KeyDown, KeyUp, KeyPress events fire) I am having a strange problem with a textbox that I am dynamically adding to a form. What I am currently doing ------------------------- I have a set of questions defined in a database. Each question can have a variable number of possible responses and can be laid out differently. I have an answer factory class that gets the correct answer control (RadioButton, TextBox, CheckBox) and provides it to a question control. The question control then adds the answer to one of its panels. All this seems to work a designed...I can add any number of questions and answers to a question list control in a variety of different layouts. The Problem I am Encountering ------------------------- The problem occurs with textbox controls. They display correctly, however, the KeyDown, KeyUp, and KeyPress events are not firing for the textboxes (in other words, I can't type anything into the textbox). However, if I have 2 textbox controls in the same container (panel), I can always get the KeyUp, KeyPress, and KeyDown events to fire by tabbing from the first textbox to the second. Once I do this, I can then start typing into both textboxes without problem. I am completely stumped. Thanks for your help, Doug Tag: Datagrid with colored columns pausing during setup Tag: 83034
  - 15
    - Bug in Windows.Forms ? Hi! I'm getting the attached Exception. The Exception was thrown when I was just moving the Mousepointer over a Form. The Exception is thrown only sometimes and I'm not able the reproduce the Problem. Can some give me a pointer please? Thank you very much, Christian System.NullReferenceException: Der Objektverweis wurde nicht auf eine Objektinstanz festgelegt. at System.Windows.Forms.ListViewItemCollection.get_Item(Int32 displayIndex) at System.Windows.Forms.ListViewItemCollection.CopyTo(Array dest, Int32 index) at System.Windows.Forms.ListView.OnHandleDestroyed(EventArgs e) at System.Windows.Forms.Control.WmDestroy(Message& m) at System.Windows.Forms.Control.WndProc(Message& m) at System.Windows.Forms.ListView.WndProc(Message& m) at System.Windows.Forms.ControlNativeWindow.OnMessage(Message& m) at System.Windows.Forms.ControlNativeWindow.WndProc(Message& m) at System.Windows.Forms.NativeWindow.DebuggableCallback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam) at System.Windows.Forms.UnsafeNativeMethods.CallWindowProc(IntPtr wndProc, IntPtr hWnd, Int32 msg, IntPtr wParam, IntPtr lParam) at System.Windows.Forms.NativeWindow.DefWndProc(Message& m) at System.Windows.Forms.Control.DefWndProc(Message& m) at System.Windows.Forms.Control.WmClose(Message& m) at System.Windows.Forms.Control.WndProc(Message& m) at System.Windows.Forms.ListView.WndProc(Message& m) at System.Windows.Forms.ControlNativeWindow.OnMessage(Message& m) at System.Windows.Forms.ControlNativeWindow.WndProc(Message& m) at System.Windows.Forms.NativeWindow.DebuggableCallback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam) at System.Windows.Forms.UnsafeNativeMethods.DispatchMessageW(MSG& msg) at System.Windows.Forms.ComponentManager.System.Windows.Forms.UnsafeNativeMethods+IMsoComponentManager.FPushMessageLoop(Int32 dwComponentID, Int32 reason, Int32 pvLoopData) at System.Windows.Forms.ThreadContext.RunMessageLoopInner(Int32 reason, ApplicationContext context) at System.Windows.Forms.ThreadContext.RunMessageLoop(Int32 reason, ApplicationContext context) at System.Windows.Forms.Application.Run(Form mainForm) at client.clientMDI.Main(String[] args) in ..........\clientmdi.cs:line 506 Tag: Datagrid with colored columns pausing during setup Tag: 83032
  - 16
    - Deploy Crystal Report without modify HKEY_LOCAL_MACHINE Hello! We developped a .NET Application, which includes some Reports. We created a Setup Projects, including the CR merge modules, specifing there our CR licence key. Now we have the problem that we need to deploy this application on computers where the users do not have the right to modify the keys under the LOCAL_MACHINE registry path. Is there a possibility to save the entry HKEY_LOCAL_MACHINE\SOFTWARE\Crystal Decisions\Crystal Reports\VSNET\Keycodes\CR9 NET under the HKEY_CURRENT_USER path or inside a file? Thanks a lot for your help. Best regards, Patrick Tag: Datagrid with colored columns pausing during setup Tag: 83031
  - 17
    - DataGrid Control Selected Index Hello, I am using a DataGrid control to populate an all customers list. I would like the users to be able to scroll up or down the list press Enter and the customer record populate on another form. I am able to accomplish this only with the Click Event, and it only works if you Click the Row Indicator on the far left side of the DataGrid. The problem seems to be realed to the cells of the DataGrid having focus at the time when the Enter key is pressed. I've tried using the CurrentCellChanged event and still cannot get the KeyUp Event to fire. Is there anyway to accomplish this? I would rather cell browsing not be available to the users and the DataGrid's RowIndicator to all ways have focus. Any Help is appreciated. Thank you Tag: Datagrid with colored columns pausing during setup Tag: 83027
  - 18
    - DATA GRID and CTRL C C# - Windows application. Datagrid class... Data grid is populated with records. (see the code below) Select one of the entire row from the grid (selected gfrom outside left boundary). The row gets highlighted... Press CTRL C to mimic copy functionality. boom!!! unhandled exception--- Please help my application is on production......!!!!!!!!!!!!!!! NO do not suggest me to go to some thirdy party controls..... Waiting positively for response TODAY Following is the code just in case if at all really some one is going to read Cursor.Current = Cursors.WaitCursor; DataSet DSCycleHistory =new DataSet(); m_FiscalYear = cmbFiscalYear.Text; sSql ="SELECT * FROM " + Global.TABLE_CYCLE_COUNT_HISTORY + " where trim(to_char(execution_date,'YYYY')) = '"+m_FiscalYear + "' ORDER BY COUNT_ID" ; DSCycleHistory=OracleHelper.ExecuteDataset(Global.sConnStr,CommandType.Text,sSql); //dgErrors.DataBindings =DSError; //dgErrors.TableStyles[0].AlternatingBackColor = Color.Gray; dgHistory.DataSource = null; dgHistory.Enabled = false; dgHistory.SetDataBinding(DSCycleHistory,"Table"); dgHistory.TableStyles[0].AlternatingBackColor = Color.LightGray; dgHistory.Enabled = true; dgHistory.PerformLayout(); dgHistory.Refresh(); Tag: Datagrid with colored columns pausing during setup Tag: 83025
  - 19
    - How to attend click button even on to in order to don't close form called by ShowDialog? I have my own windows form with some contrlos to set a few parameters. I show this form by frm.ShowDialog(). How I have to proram the button which sometimes should close form but in another time, the buuton should give a messagebox (with warning message: "Some parameters are incorect") and not to close form, but continue form's focus to correct thiese parameters? I tried to set the button.dialogresult = dialogresult.None, ut it doesn't work. The form has been still closing... Sorry for my english, but I'm beginner ;-) Tag: Datagrid with colored columns pausing during setup Tag: 83016
  - 20
    - Handle changes in system font size I need to write a graphical UI with non-Windows look and feel (Irregular-shaped bitmapped controls and forms) but is having probelm when i update the System font size settings. (e.g. 96 dpi -> 120 dpi) Is there any docs from Microsoft on reccommended ways to handle the font size change? Thanks. -- Regards, Hin Tag: Datagrid with colored columns pausing during setup Tag: 83013
  - 21
    - TopMost problem Hi guys. I am writing an aplication with C#.Net in VS.Net2003 I have a Mdi form wich has 2 child forms. How can I set one of the child forms as a topmost ?. When I set TopMost property to true it does not work. I tried every thing but nothing helps. Can anyone send me an example of code. Thanks Tag: Datagrid with colored columns pausing during setup Tag: 83007
  - 22
    - Can't override ShowDialog Hi: I have a set of derived forms that I wish to implement an 'Execute' method to launch these forms, but I also wish to hide the 2 inbuilt ShowDialog methods so these can't be called unwittingly. I have tried: private new DialogResult ShowDialog() { } private new DialogResult ShowDialog(IWin32Window aParent) { } but these are completely ignored and the 2 methods are still visible and usable. How can I hide these? TIA, Martin. Tag: Datagrid with colored columns pausing during setup Tag: 83006
  - 23
    - Probs with visual inheritance and DataGrid columns Hello! I've got the following problem: I add a form frmBaseForm to my project, this form contains the DataGrid named let's say dgInvoices which has the table style named tsInvoicesData with several column styles named: tsCompanyName, tsValid, tsValidUntil. Then I add an inherited form to the project, which inherits frmBaseForm that's where the problems start: in the inherited form I have a DataGrid with the same name as on the base form dgInvoices, BUT the table style name is DataGridTableStyle1, more than that, column styles names (shown in property browser) are DataGridTextBoxColumnStyle1, DataGridBooleanColumnStyle1, DataGridTextBoxColumnStyle2. Why it happens this way? Why Buttons, TextBoxes, Panels etc. are shown in the inherited form with the same names, but Table/Column styles are not. The most interesting thing is, that if I go through inherited form members in run-time using Reflection I find these Table/Column styles under names which are assigned to them in the parent form (tsInvoicesData, tsCompanyName, tsValid, tsValidUntil) not which are visible in the property browser for the inherited form. Could please explain me this weird behavior of the IDE, is it normal or not, if it is normal, then WHY?! If not, then is this fixable and how? Tag: Datagrid with colored columns pausing during setup Tag: 83005
  - 24
    - Custom Control Property HelpText Property Yeah, reading the subject, it makes no sense...but here goes.. I made a textbox control w/ some added features...the problem is, whenever I go to use it, I forget what my custom properties do. Is there a way to put helptext into the custom properties so it appears in the bottom of the property window like all of the standard properties of standard controls? I think if it can be done it has something to do with accessing the appropriate attribute of the property using the system.reflection namespace...but yeah, I don't know, that's why I'm asking! Tag: Datagrid with colored columns pausing during setup Tag: 82998
  - 25
    - "Restructure a Windows application" from scratch in 2 months Hello Everybody, Please guide me so that I can fulfill this challenging assisnment ... I have been asked to "Restructure a Windows application" from scratch in 2 months. The existing application which is working but it is very heavy as no proper application architecture and layering has been followed for this. It was really hard to maintain (as I was maintaing it till now) . First let me tell u a bit about my application ... This appliction uses Window forms UI with a lot of panels put one on the top of other.There are few separate forms for login etc. This UI interact with webservices to get the data from our database and show in turn on UI. Three Windows services are updating our database from some other remote database after regular interval. So in this way we keep our database updated with real data. Thus client UI don't has to wait for long to get the real time data directly from the original source.We are currently deploying the Client UI from web and using C# as language. Being new to dotnet technology, I don't know how to start with this. Some of the facts/questions that are coming to my mind after studying my application and the concepts ... 1. There is a lot of hype and demand about UML Tools like "Rational Rose" etc. I want to use it to redevelop my application. 2. Microsoft recommends the "Application pattern and practices" to design the application. I am presently going through the following topics ... .NET Data Access Architecture Guide http://msdn.microsoft.com/library/default.asp?url=/library/en-us/dnbda/html/daag.asp Desinging Data Tier Components and Passing Data Through Tiers http://msdn.microsoft.com/library/default.asp?url=/library/en-us/dnbda/html/BOAGag.asp Although these are very good resources but these are very vast and taking a lot of time. Sometimes I am not able to follow these articles as I don't have extensive experience. Could you please point me towards 1 or 2 sample applications of "Similar Kind" (Preferably with Full UML diagrams/documents) with of course easy to understand documentation and source code, so that I have the practical view of "Microsoft Pattern and Practices" and I can instantly follow them. It would be better if these applications are not very complex and yet inclue the layering concept as well as the usage of all technologies -Web Services,Windows Services,UI,SQL Server connectivity etc. 3. What is the best way to use Panels/Forms. Is it good to show multiple panels on the same form and when needed use visible for 1 panel and invisible for multiple panels or use multiple forms? And why the respective practice is used? Thank you for all of your patience to go through such a long mail. Please advise me the best way to go about it keeping in mind the time constraint of 2 months. Thanking you in advance, Regards, Rajat Tandon. Tag: Datagrid with colored columns pausing during setup Tag: 82997
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  - 1
    - Calling winForms in Installer project I had build an installer project for my ASP.NET project. And found that several fields need to be configured, like the web.config files and etc, which requires user input. Also I need to attach my database using the installer project, anybody could suggest how I could perform similar action? One of my idea is to build a winform project which accepts athe user input and configure the fields during installation, but I had no idea how winform object is being called during installation. Any idea and suggestions are welcomed! Thanks in advance. Regards; weichung Tag: Datagrid with colored columns pausing during setup Tag: 82994
  - 2
    - Index Out of Bounds grrr! Hi Have one Datagrid with a Master Detail relationship code is: // Connection Adapters CBAdapter = new OleDbDataAdapter("Select * From tblCashBook", CBConnect) ; CBAdapterSplit = new OleDbDataAdapter("Select * From tblCashBookSplit", CBConnect) ; CBDataset = new DataSet(); CBConnect.Open() ; CBAdapter.Fill(CBDataset, "tblCashBook") ; CBAdapterSplit.Fill(CBDataset, "tblCashBookSplit") ; DGCashBook_SetupColumnStyles(); DGCashBookSplit_SetupColumnStyles(); CBDataset.Relations.Add("CashBookToSplit", CBDataset.Tables["tblCashBook"].Columns["SplitNumber"], CBDataset.Tables["tblCashBookSplit"].Columns["SplitNumber"]); this.DGCashBook.DataSource = CBDataset; this.DGCashBook.DataMember = "tblCashBook"; this.DGCashBook.Navigate += new NavigateEventHandler(DGCashBook_Navigate); cm =(CurrencyManager)this.DGCashBook.BindingContext[this.DGCashBook.DataSource, this.DGCashBook.DataMember]; ((DataView)cm.List).AllowNew = false; CBConnect.Close(); * I am running a filter depending on what option has been selected in a combobox, CBDataset.Tables["tblCashBook"].DefaultView.RowFilter = "BankCode = '" + fBankCode1.txtCode.Text + "'"; * Now I am getting a 'Index out of bounds in array' error when I click on a record with hyperlink to display the children records, this only happens when I use this filter. Any help on this filter problem would much appreciated. Thanks David Tag: Datagrid with colored columns pausing during setup Tag: 82993
  - 3
    - Smooth scrolling I am developing a windows application for scrolling through multi page tif documents (similar to ms word style). I am having difficulties achieving a highly smooth scrolling affect. I load the entire tif into a memory stream and access it from there. I am using a picturebox like control to view each page of the tif, I scroll through viewers using the autoscrollbar on the form. The problem seems to lie in the way the image is being repainted, when scrolling up or down quickly there is the 'frames' affect, the screen does not seem to finish repainting the new display area before the paint event is raised again and another repaint begins (theorizing?). As I continue to scroll down it looks as if the same small portion of image is repainted a dozen times until it fills up the screen, the problem is solved after the scrolling has ended and the paint is able to redraw the screen completely. How can I smooth out the scrolling?? As well, is there any limit on the size of a form and distance a scroll bar can scroll? Thank you Tag: Datagrid with colored columns pausing during setup Tag: 82989
  - 4
    - Update a database Hello, I have an application that sends a transaction across a Domain (on a LAN) to another computer inside the domain that is functioning as a Datastore. When the transaction is sent to the datastore it is always successful, but 90% of the time the first 3 entries (Paramaters) are being duplicated from the previous transactions.i.e. InsertCommand.Text = "INSERT INTO Customers Values(?,?,?,?,?,?,?,?,?............)" Parameter(0)....... Parameter.Value= IDNumber Parameter(1)....... Parameter.Value = CustomerAccountNumber.Text Parameter(2)...... Parameter.Value = txtLastName.Text etc. etc. etc (About 110 Parameters, Above example is not actual code just brief idea to explain the problem) when this command is wrapped in a transaction or simply sent to the datastore. The querry is sucessful, but alot of the time the IDNumber will be good, but the CustomerAccountNumber (Built on the fly) and the txtLastName are being duplicated from the previous customer information. I have noticed it is only happens to the first 3 or 4 fields. I am sure that the form has different data but the database is showing (When I view it) that there are multiple individuals with the same account number. Could this have something to do with the network? The network is using DHCP and the DSN for each computer on the network are routed to the Datastore IP and the Domain Computer's IP. Any suggestions will be greatly appreciated. Thanks, Chuck Tag: Datagrid with colored columns pausing during setup Tag: 82982
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    - How to open cash drawer through receipt printer in c#? How to open cash drawer through receipt printer in c#? Tag: Datagrid with colored columns pausing during setup Tag: 82977
  - 6
    - Keyboard Selection of DataGrid Rows then Delete Hi all. I'm having problems preventing the delete of datagrid rows when they are selected via keyboard selection. I have implemented the common solution of overriding of PreProcessMessage() to prevent delete when the user selects the entire row by selecting the row header. This works fine. However, execution does not enter this method for this scenario: The user selects a particular value in a particular row/column with the mouse, and then uses SHIFT-Down Arrow one or more times to select multiple rows, and then presses delete. Execution does not enter the PreProcessMessage() method, and the rows get undesireably deleted from the grid. BTW, I cannot override ProcessCmdKey() for this either, because this prevents the use of the delete key within editable columns. Any ideas? Thanx! P.S. I didn't see anything in the DataGrid faq at SyncFusion either, regarding this. Tag: Datagrid with colored columns pausing during setup Tag: 82968
  - 7
    - Running a .Net WinForms app from network drive etc... Not sure if this is the proper group for this but... First, I am trying to figure out exactly what steps I must take on each client machine to be able to Run a .Net WinForms ap from a local Intranet mapped drive. Currently my app will only run if it is installed to a local hard drive. Note that I am NOT interested in doing a SmartApp for this. I only want to run this as an standard windows .net winforms app. Secondly, is it possible to do an Install to a shared/mapped Intranet folder from one machine, and then to go to another machine (with .Net framework on it) and then execute that program from the mapped drive without having installed it on that machine? If the answer is Yes, what about if the app uses 3rd party DLL's like CrytalDecisions reporting DLL's. Is it enought for those DLL's to be installed in the App folder or MUST they be installed into each client machines local GAC? Thanks in advance, JIM Tag: Datagrid with colored columns pausing during setup Tag: 82966
  - 8
    - Reuse DataGridTableStyle Hi, I have two datagrids (on the same Windows form) that are basically two different filters of the same datatable. I've set up a table style for the first one and I'm then trying to reuse that same style for the second datagrid. That's giving the error "Cannot add a DataGridTableStyle already parented to another DataGrid" Any ideas how I can reuse it? Tag: Datagrid with colored columns pausing during setup Tag: 82963
  - 9
    - Tab page order with forms inheritance issue... I have a BaseForm with a tab control that has two tab pages on it. When I create a DerivedForm based on the BaseForm I am able to add pages to the form in the DerivedForm. I am also able to reorder all of the pages on the tab control in design mode, however, as soon as I compile to run, the reordering is lost. I have also tried programmatically using SetChildIndex to reorder the tab pages in the container, with the same effect. Does anyone know how to do this? Here are the classes: public class BaseForm : System.Windows.Forms.Form { protected System.Windows.Forms.TabControl tabControl1; protected System.Windows.Forms.TabPage tabPage1; protected System.Windows.Forms.TabPage tabPage2; public BaseForm() { InitializeComponent(); } private void InitializeComponent() { this.tabControl1 = new System.Windows.Forms.TabControl(); this.tabPage1 = new System.Windows.Forms.TabPage(); this.tabPage2 = new System.Windows.Forms.TabPage(); this.tabControl1.SuspendLayout(); this.SuspendLayout(); // // tabControl1 // this.tabControl1.Controls.Add(this.tabPage1); this.tabControl1.Controls.Add(this.tabPage2); this.tabControl1.Location = new System.Drawing.Point(0, 0); this.tabControl1.Name = "tabControl1"; this.tabControl1.SelectedIndex = 0; this.tabControl1.TabIndex = 0; // // tabPage1 // this.tabPage1.Location = new System.Drawing.Point(4, 22); this.tabPage1.Name = "tabPage1"; this.tabPage1.Size = new System.Drawing.Size(192, 74); this.tabPage1.TabIndex = 0; this.tabPage1.Text = "tabPage1"; // // tabPage2 // this.tabPage2.Location = new System.Drawing.Point(4, 22); this.tabPage2.Name = "tabPage2"; this.tabPage2.Size = new System.Drawing.Size(192, 74); this.tabPage2.TabIndex = 1; this.tabPage2.Text = "tabPage2"; // // Form1 // this.AutoScaleBaseSize = new System.Drawing.Size(5, 13); this.ClientSize = new System.Drawing.Size(336, 182); this.Controls.Add(this.tabControl1); this.Name = "Form1"; this.Text = "Form1"; this.tabControl1.ResumeLayout(false); this.ResumeLayout(false); } } public class DerivedForm : FormsInheritenceIssue.BaseForm { private System.Windows.Forms.TabPage tabPage3; [STAThread] static void Main() { Application.Run(new DerivedForm()); } public DerivedForm() { InitializeComponent(); } private void InitializeComponent() { this.tabPage3 = new System.Windows.Forms.TabPage(); this.tabControl1.SuspendLayout(); this.SuspendLayout(); // // tabControl1 // this.tabControl1.Controls.Add(this.tabPage3); this.tabControl1.Name = "tabControl1"; this.tabControl1.Controls.SetChildIndex(this.tabPage2, 0); this.tabControl1.Controls.SetChildIndex(this.tabPage1, 0); this.tabControl1.Controls.SetChildIndex(this.tabPage3, 0); // // tabPage1 // this.tabPage1.Name = "tabPage1"; // // tabPage2 // this.tabPage2.Name = "tabPage2"; // // tabPage3 // this.tabPage3.Location = new System.Drawing.Point(4, 22); this.tabPage3.Name = "tabPage3"; this.tabPage3.Size = new System.Drawing.Size(192, 74); this.tabPage3.TabIndex = 2; this.tabPage3.Text = "tabPage3"; // // DerivedForm // this.AutoScaleBaseSize = new System.Drawing.Size(5, 13); this.ClientSize = new System.Drawing.Size(336, 182); this.Name = "DerivedForm"; this.tabControl1.ResumeLayout(false); this.ResumeLayout(false); } } Tag: Datagrid with colored columns pausing during setup Tag: 82962
  - 10
    - Dynamic Binding to Winform Interface I am trying to load an assembly dynamically in a windows form application and bind to one of the interfaces contained in it. I can successfully load the assembly into memory and create the object which is a Form. But how do I bind to an interface the Form has implemented with out making a project reference to the assembly that contains the interface? I want the executable to interoperate with the Dynamic Loaded Form via Interface only. I believe I am pushing the limits of .NET. But then again I may just be ignorant. If anyone has any comments please share. Tag: Datagrid with colored columns pausing during setup Tag: 82959
  - 11
    - Logging/error handling There is a small group of doing .net development in c#/VB.net. I noticed each of us is logging/ catching errors differently in our programs. In short, does anybody know of a class or object out that that will allow us to add to each project to have common logging/error handling to access through each program. Not sure if anybody has written a class that handles errors and logging. Any help is appreciated Thanks! Tag: Datagrid with colored columns pausing during setup Tag: 82950
  - 12
    - deployment hi Can window controls be loaded from a html page which could be hosted on a linux machine? the client m/c will be running windows pls provide me links if any thanks in advance -- Ganesan.B Tag: Datagrid with colored columns pausing during setup Tag: 82948
  - 13
    - Add bound column to datagridview Hi Gurus. In design time, I can add column to a DataGridView using the "Add Column" item of the DataGridView smart tag. Problem is, I can only add columns of "special types", such as checkbox, textbox, link etc. How can I add regular column, which contains only the text of the bounded source, in design time? I know I can do it by code, but I want to avoid that. BTW - AutoGenerateColumns is false, of course... Thanks! Tag: Datagrid with colored columns pausing during setup Tag: 82941
  - 14
    - Datagrid tablestyle,column style not working I have adatagrid and a dataset, when i bind dataset to grid, it works fine, however when i use formatting(Tablestyle, Columnstyles), then the formatting doesnt work. The data is still binded without showing the formatting. What canI do to resolve this problem? Tag: Datagrid with colored columns pausing during setup Tag: 82936
  - 15
    - restoring window minimzed to the system tray? I have an app that minimizes itself to the system tray. It's also single instance; when a second instance is started, it just activates the first one and quits. When the first instance isn't in the system tray, I can use ShowWindowAsync() via interop to bring it to the front. When it's minimzed to the system tray, nothing seems to restore it back to a window. I've tried all the obvious variations of SW_SHOW, SW_RESTORE, etc. Has anyone gotten this to work? Tag: Datagrid with colored columns pausing during setup Tag: 82930
  - 16
    - DefaultAttribute not working in PropertyGrid on runtime generated Hi All, I am testing some stuff out at the moment with the runtime generation of classes relating to schema-validated XML elements. I was hoping to get to the point that I could include the use of the DefaultValueAttribute on any property that requires it. The PropertyGrid was then to be used to display the various properties for editing but, this DefaultValueAttribute doesn't seem to stick enough for the PropertyGrid to correctly bold/unbold values entered. EXAMPLE: private static void _addAttribute(TypeBuilder tb, string PropertyName) { FieldBuilder fb = tb.DefineField("_" + PropertyName, typeof(string), FieldAttributes.Private); PropertyBuilder pb = tb.DefineProperty(PropertyName, PropertyAttributes.HasDefault, typeof(string), new Type[] { typeof(string) }); Type t = typeof(System.ComponentModel.CategoryAttribute); ConstructorInfo ci = t.GetConstructor(new Type[1]{typeof(string)}); CustomAttributeBuilder cab = new CustomAttributeBuilder(ci, new string[1]{PropertyName}); pb.SetCustomAttribute(cab); if (PropertyName == "CustomerName") { t = typeof(System.ComponentModel.DefaultValueAttribute); ci = t.GetConstructor(new Type[1]{typeof(string)}); cab = new CustomAttributeBuilder(ci, new string[1]{"Robert Magnusson"}); pb.SetCustomAttribute(cab); } // First, we'll define the behavior of the "get" property for CustomerName as a method. MethodBuilder mbGet = tb.DefineMethod("Get" + PropertyName, MethodAttributes.Public, typeof(string), new Type[] { }); ILGenerator custNameGetIL = mbGet.GetILGenerator(); custNameGetIL.Emit(OpCodes.Ldarg_0); custNameGetIL.Emit(OpCodes.Ldfld, fb); custNameGetIL.Emit(OpCodes.Ret); // Now, we'll define the behavior of the "set" property for CustomerName. MethodBuilder mbSet = tb.DefineMethod("Set" + PropertyName, MethodAttributes.Public, null, new Type[] { typeof(string) }); ILGenerator custNameSetIL = mbSet.GetILGenerator(); custNameSetIL.Emit(OpCodes.Ldarg_0); custNameSetIL.Emit(OpCodes.Ldarg_1); custNameSetIL.Emit(OpCodes.Stfld, fb); custNameSetIL.Emit(OpCodes.Ret); // Last, we must map the two methods created above to our PropertyBuilder to // their corresponding behaviors, "get" and "set" respectively. pb.SetGetMethod(mbGet); pb.SetSetMethod(mbSet); } Tag: Datagrid with colored columns pausing during setup Tag: 82926
  - 17
    - Strip bytes off the end of a byte array I am attempting encryption. I start with a byte array of some dimension and end with a padded byte array with junk on the end. Is there a clever way to remove padding from the end of a byte array? Thanks, Fred Herring Tag: Datagrid with colored columns pausing during setup Tag: 82925
  - 18
    - Embedded .NET Control in IE - Policy issue not causing it to work??? I have a .NET control embedded in Internet Explorer. Right now I am loading the control in a Local Intranet Zone, meaning that http://localhost/MyWebPage.htm has the embedded control. I have: 1) Strong Named my control 2) added [assembly: System.Security.AllowPartiallyTrustedCallers] attribute to my AssemblyInfo.cs file 3) created a custom Code Group under "All_Code" in Machine Runtime Security Policy 4) set the "Membership Condition" of my code group to be "Strong Name" and imported the file (with and without the Name and Version) 5) set the "Permission Set" to be "FullTrust" All to not have my control load up correctly. This is the IEDebug output: Microsoft.IE.SecureFactory: Trying to create instance of type http://localhost/MySite/MyControlDir/MyControl.dll#MyControlNamespace.MyControl Microsoft.IE.SecureFactory: System.Reflection.TargetInvocationException: Exception has been thrown by the target of an invocation. ---> System.Security.SecurityException: Request for the permission of type System.Security.Permissions.SecurityPermission, mscorlib, Version=1.0.5000.0, Culture=neutral, PublicKeyToken=b77a5c561934e089 failed. at System.Runtime.Serialization.Formatters.Binary.ObjectReader.CheckSecurity(ParseRecord pr) at System.Runtime.Serialization.Formatters.Binary.ObjectReader.ParseObject(ParseRecord pr) at System.Runtime.Serialization.Formatters.Binary.ObjectReader.Parse(ParseRecord pr) at System.Runtime.Serialization.Formatters.Binary.__BinaryParser.ReadObjectWithMapTyped(BinaryObjectWithMapTyped record) at System.Runtime.Serialization.Formatters.Binary.__BinaryParser.ReadObjectWithMapTyped(BinaryHeaderEnum binaryHeaderEnum) at System.Runtime.Serialization.Formatters.Binary.__BinaryParser.Run() at System.Runtime.Serialization.Formatters.Binary.ObjectReader.Deserialize(HeaderHandler handler, __BinaryParser serParser, Boolean fCheck, IMethodCallMessage methodCallMessage) at System.Runtime.Serialization.Formatters.Binary.BinaryFormatter.Deserialize(Stream serializationStream, HeaderHandler handler, Boolean fCheck, IMethodCallMessage methodCallMessage) at System.Runtime.Serialization.Formatters.Binary.BinaryFormatter.Deserialize(Stream serializationStream) at System.Resources.ResourceReader.LoadObject(Int32 pos) at System.Resources.RuntimeResourceSet.GetObject(String key, Boolean ignoreCase) at System.Resources.ResourceManager.GetObject(String name, CultureInfo culture) at System.Resources.ResourceManager.GetObject(String name) at MyControl.InitializeComponent() at MyControl..ctor() --- End of inner exception stack trace --- I can't make much sense of the exception but I have searched to no avail. Am I missing a small but important step? Please let me know! Thank you in advance, Marco Tag: Datagrid with colored columns pausing during setup Tag: 82922
  - 19
    - Bitmap region is already locked I have an application that is capturing grayscale images from a frame grabber (about 10 frames per second). The 1024 X 768 pixels are then copied to the bitmapData section of a bitmap ( a background processing thread) and then displayed by the UI thread. The basic structure of the code is that the main form starts a new thread to capture frames from the frame grabber. Using lockbits() and unlockbits() the data is then copied to the one and only bitmap by the processing thread. After the bitmapData section has been updated, that thread then raises an event that the main UI thread has registered for to display the updated bitmap. The call from the background thread back to the UI thread is synchronous. This all works fine if no other UI components are being change/painted. Occasionally, in the UI thread, when other UI events are occurring (updating menu, etc) I get an â??InvalidOperationException: Bitmap region is already lockedâ??. If I just catch that infrequent exception and throw it away everything works OK, but I am hoping to prevent that from happening. The code that is actually displaying the bitmap, is an overridden OnPaint() handler for the control that is being used to draw the bitmap. protected override void OnPaint(PaintEventArgs e) { e.Graphics.DrawImage( (Image) bitmap, 0, 0 ); } I originally thought that there would be no contention for the bitmap since the frame grabbing thread called the UI thread synchronously, but I guess the UI thread must make some asynchronous calls of its own when handling all the painting that is going on. Any words of advice of how handle this situation? Tag: Datagrid with colored columns pausing during setup Tag: 82920
  - 20
    - How to determine if a KeyEventArgs contains a "text" character? I am writing a control which extends System.Windows.Forms.TextBox and adds in the concept of EditMode vs. ReadyMode (similar to an Excel cell). So normally when focus arrives on the control, I hide the blinking cursor and change the mouse pointer from an I-beam to an arrow. When the user hits certain keys, the control goes into Edit mode (for instance if they type a letter), and the letter gets appended to the end of the string. When they're done typing they can hit <Enter> to commit the change and go back to Ready mode, or <Esc> to cancel the change, revert to the old Text, and go back to Ready mode. Unfortunately, I have to do this by hooking the KeyDown event and testing the e.KeyCode value. However that means going through the entire list of possible values for the System.Windows.Forms.Keys enumeration, which includes some crazy keys like Keys.IMEAceept (sic) and Keys.Oem8 (different manufacturers have their own '8' key?). Is there some function in the Framework or WindowsAPI that I can call which will tell me if a certain KeyCode ought to cause some text to appear on the screen? Thanks Tag: Datagrid with colored columns pausing during setup Tag: 82914
  - 21
    - Why does my USER CONTROL keep disappearing ? I'm not sure what causes it, but occasionally my USER CONTROL half way disappears from the form I am working on. I detect design mode and have an innocuous gradient fill paint for that, which does not interact with the control heavily. When it goes, it doesn't completely go, there is still a control variable for it, but the code to instance it, and initialize its properties goes away. The program can not run, of course, with no instance. And I can not add the control now. I exit IDE, come back in, add the control again, and then have to play some search/replace games to get the name of UC2 back to UC1. Can I fix it? Can I avoid it? What causes it? Best regards - Lee Gillie, Spokane WA Tag: Datagrid with colored columns pausing during setup Tag: 82913
  - 22
    - ListView: Can't Clear and Add New Items I've got a windows form and have a ListView control I'm trying to populate. In the form's constructor, I call a method called InitializeList(). In there I create some columns and some rows of data. This works fine. I also need to be able to clear the grid and update it with new columns and new rows of data. This is where I am having the problem. In an on click button event I try to clear the ListView, add new columns and then add some rows. I don't get any exceptions, but the grid doesn't get populated with the new columns and rows. I've tried all sorts of experiments, even taking the code from the InitializeList() method and putting in the button even method. Even when I do this, the grid doesn't get populated. The only thing I can do is to add to the grid in the button event method, but this doesn't help me. I have copied my code below. Any help would be much appreciated. Thanks! private void InitializeList() { lsvReport.View = View.Details; lsvReport.GridLines = true; lsvReport.Columns.Add ( "Item", -2, HorizontalAlignment.Left ); lsvReport.Columns.Add ( "Very Wide Header", -2, HorizontalAlignment.Center ); lsvReport.Columns.Add ( "Sub B", -2, HorizontalAlignment.Right ); lsvReport.Columns.Add ( "Sub C", -2, HorizontalAlignment.Left ); ListViewItem lsvItemX = new ListViewItem ( "First", 0 ); lsvItemX.SubItems.Add ( "1A" ); lsvItemX.SubItems.Add ( "1B" ); lsvItemX.SubItems.Add ( "1C" ); lsvReport.Items.Add ( lsvItemX ); lsvItemX = new ListViewItem ( "Second", 0 ); lsvItemX.SubItems.Add ( "2A" ); lsvItemX.SubItems.Add ( "2B" ); lsvItemX.SubItems.Add ( "2C" ); lsvReport.Items.Add ( lsvItemX ); lsvItemX = new ListViewItem ( "Third", 0 ); lsvItemX.SubItems.Add ( "3A" ); lsvItemX.SubItems.Add ( "3B" ); lsvItemX.SubItems.Add ( "3C" ); lsvReport.Items.Add ( lsvItemX ); lsvItemX = new ListViewItem ( "Very Wide Text", 0 ); lsvItemX.SubItems.Add ( "4A" ); lsvItemX.SubItems.Add ( "4B" ); lsvItemX.SubItems.Add ( "4C" ); lsvReport.Items.Add ( lsvItemX ); lsvItemX = new ListViewItem ( "Fifth", 0 ); lsvItemX.SubItems.Add ( "5A" ); lsvItemX.SubItems.Add ( "5B" ); lsvItemX.SubItems.Add ( "5C" ); lsvReport.Items.Add ( lsvItemX ); } private void btnReload_Click(object sender, System.EventArgs e) { lsvReport.Clear(); lsvReport.Columns.Add ( "1st", -2, HorizontalAlignment.Left ); lsvReport.Columns.Add ( "Very Wide Header", -2, HorizontalAlignment.Center ); lsvReport.Columns.Add ( "Sub B", -2, HorizontalAlignment.Right ); ListViewItem lsvItemX = new ListViewItem ( "First", 0 ); lsvItemX.SubItems.Add ( "1A" ); lsvItemX.SubItems.Add ( "1B" ); lsvReport.Items.Add ( lsvItemX ); } } Tag: Datagrid with colored columns pausing during setup Tag: 82911
  - 23
    - newbie question regarding Textbox Focus and Enter event. Hi all, I have added event to Enter and Leave to a textbox control. Within Enter I am setting focus to another control and this is causing me problems. It is calling the event twice. My question is why does it call it twice and can you set focus within enter event. Hope it all makes sense. Thanks for any input. Tag: Datagrid with colored columns pausing during setup Tag: 82908
  - 24
    - Determine Selected Rows in DataGrid C# Does anyone have any C# code snippet for iterating thro a datagrids rows and getting the values of the rows that have been selected Tag: Datagrid with colored columns pausing during setup Tag: 82904
  - 25
    - DateTimePicker events Hi, I'm looking for which event to use with regard to a DateTimePicker control. I want my event to fire when the actual contents of the control is changed... but I'm finding that all events are firing when I, for example, scroll from month to month. Presumably I'm missing something very straightforward but if someone has an idea then it would be much appreciated. Thanks Tag: Datagrid with colored columns pausing during setup Tag: 82903

I have a windows form that contains a datagrid with columns given coloured
backgrounds via the DataGridColoredTextBoxColumn class. Data is loaded, and
the table style set up, during the load event of the form. At present, the
form half displays, then pauses, then completes. Is there any way of
telling it to complete the set up _before_ displaying anything?

Thanks.

Top

Re: Datagrid with colored columns pausing during setup by Pete

Pete
Fri Jan 21 11:35:45 CST 2005

Have you tried performing the code between a DataGrid.BeginInit() and
DataGrid.EndInit()?

Pete

"Rob Oldfield" <blah@blah.com> wrote in message
news:exc7So5$EHA.3120@TK2MSFTNGP12.phx.gbl...
> I have a windows form that contains a datagrid with columns given coloured
> backgrounds via the DataGridColoredTextBoxColumn class. Data is loaded,
and
> the table style set up, during the load event of the form. At present,
the
> form half displays, then pauses, then completes. Is there any way of
> telling it to complete the set up _before_ displaying anything?
>
> Thanks.
>
>

Top

Re: Datagrid with colored columns pausing during setup by Rob

Rob
Fri Jan 21 15:01:15 CST 2005

I haven't... but I will. Thanks for the suggestion.

"Pete Davis" <pdavis68@NOSPAM.hotmail.com> wrote in message
news:2_ednfw5AsXsoGzcRVn-3w@giganews.com...
> Have you tried performing the code between a DataGrid.BeginInit() and
> DataGrid.EndInit()?
>
> Pete
>
> "Rob Oldfield" <blah@blah.com> wrote in message
> news:exc7So5$EHA.3120@TK2MSFTNGP12.phx.gbl...
> > I have a windows form that contains a datagrid with columns given
coloured
> > backgrounds via the DataGridColoredTextBoxColumn class. Data is loaded,
> and
> > the table style set up, during the load event of the form. At present,
> the
> > form half displays, then pauses, then completes. Is there any way of
> > telling it to complete the set up _before_ displaying anything?
> >
> > Thanks.
> >
> >
>
>

Top