Problem with menus

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- Previous
  - 1
    - DataGrid Refresh problem I have a data grid refresh problem. I have a few columns and the first column is data in the form of numbers. And in the form of the data grid if I specify for example something like a code(in a text box) the column of numbers should change colors depending on whether the number was in the specified code(if it belongs to the code, color the cell (first column) in Red and if not in some other color). It all works out fine until I scroll up/down and trigger the paint event. The changed colurs seem to be changed. I want the refreshing to be done for all records for that column, but it seems it only refreshes parts of the datagrid. How do I make the refreshing to be done to the whole datagrid rather than a part of it, so I can get the original colur change for each cell of the first column. Code //method to be passed into the coloumn style that determines the color public Color MyGetColorRowCol(int row, int col) { // just conditionally set colors based on row, col values... short number = 0; short retval = 0; Color c = Color.PaleGoldenrod; if (col == 0) { number = array[cIndex]; retval = GetIfInChannelOrNot(code, number); if(retval==0) { c = Color.LightGreen; } if(retval!=0) { c = Color.Red; } cIndex++; if(TotalNumbers == cIndex) { cIndex = 0; } } else { c = Color.LightGray; } return c; } //delegate required by custom column style public delegate Color delegateGetColorRowCol(int row, int col); public class DataGridColoredTextBoxColumn : DataGridTextBoxColumn { private delegateGetColorRowCol _getColorRowCol; private int _column; public DataGridColoredTextBoxColumn(delegateGetColorRowCol getcolorRowCol, int column) { _getColorRowCol = getcolorRowCol; _column = column; } protected override void Paint(System.Drawing.Graphics g, System.Drawing.Rectangle bounds, System.Windows.Forms.CurrencyManager source, int rowNum, System.Drawing.Brush backBrush, System.Drawing.Brush foreBrush, bool alignToRight) { // the idea is to conditionally set the foreBrush and/or backbrush // depending upon some crireria on the cell value // Here, we use a delegate to retrieve the color try { backBrush = new SolidBrush(_getColorRowCol(rowNum, this._column)); foreBrush = new SolidBrush(Color.Black); } catch(Exception ex){ /* empty catch */ } finally { // make sure the base class gets called to do the drawing with // the possibly changed brushes base.Paint(g, bounds, source, rowNum, backBrush, foreBrush, alignToRight); } } } Tag: Problem with menus Tag: 73540
  - 2
    - Displaying different font size or font type on DatagridTextboxcolu Hi All, I'm developer in VB .NET family. I'm using DataGridTextboxColumn class so I need to display different font type, style and size on each cell. Is it posible, How? Thanks, KPH Tag: Problem with menus Tag: 73539
  - 3
    - Tab control Hi all, How to customize the "Tab head" Appearebce of the Tab Control in .NET, ie i want to changed the buttoned/flat appearence of the tab control to "/--\" shape. Thanks in Advance. regards Suresh Tag: Problem with menus Tag: 73537
  - 4
    - Tab Control Hi all, How to customize the "Tab head" Appearebce of the Tab Control in .NET, ie i want to changed the buttoned/flat appearence of the tab control to "/--\" shape. Thanks in Advance. regards Suresh Tag: Problem with menus Tag: 73536
  - 5
    - Displaying cells in the DataGrid with their original formatting Hi, I've noticed an unexpected behavior with the DataGrid control. Cells that have special formatting only display their special formatting (such as diferrent bg color, text wrap etc.) when the user clicks on them. Is there a way to somehow make the datagrid display the all cells in their original formatting automatically, rather than only when clicking on them? I'm mostly interested in this behavior because i want the cells that span over more than one line to wrap text. I've already found a way to change the rows' height (using the help of the incredible SyncFusion site!), so i thought it would be nice to also have text wrapping in the cells when the height is right. I wonder if it can be done using reflection, because i didn't see any public or prortected properties for changing this behavior. Thanks for any suggestions :-) Tag: Problem with menus Tag: 73534
  - 6
    - 1 Build Error Task shown (after upgrading to VS 2003) After upgrading to Visual Studio 2003 I have been getting the following Build error message when starting up a session. "At least one element in the source array could not be cast down to the destination array type." There is no file associated with it and refers to line 0. Seem s harmless, doesn't prevent me from doing a build or anything, so I am just ignoring it for now. But what is it? Should I take some action? Thanks Burton Roberts Tag: Problem with menus Tag: 73529
  - 7
    - How to force MeasureItem in Owner Drawn Listbox? I have an owner drawn listbox which is derived from the ListBox class. How can I force it to re-measure all items? It doesn't use DataBinding (yet). Thanks, Stijn. Tag: Problem with menus Tag: 73526
  - 8
    - Data from Web Browser control back to the windows form Hi, I would like to know what's the best way to capture data from a page inside a web browser control into the windows form. The data inside the web browser's page is in whichever way i want it to be since it's generated. Thanks in advance, Ana L. Tag: Problem with menus Tag: 73523
  - 9
    - location of a control i have button at the left bottom corner of the form whenever i resize the form, i want to the button stay at the same place. does button have property for this doing this? Tag: Problem with menus Tag: 73515
  - 10
    - How to find out text size How to find out text width for specific font and text string. I need to dynamically generate labels and set its size property. TIA Tag: Problem with menus Tag: 73513
  - 11
    - Handling Empty Returns using the DataReader I am getting this error when the DataReader returns a Null Value. "Invalid attempt to read when no data is present." It works fine as long as there is a string. What is the NZ() function in VB.Net? or what would be the best way to handle this? -- Thank You, Leo Public Function GetNotes(ByVal NoteType As String) Dim conSql As New SqlClient.SqlConnection conSql.ConnectionString = "Integrated Security = True;" & _ "Data Source = TWSQL;Initial Catalog = HomeBASE;" Dim cmd As SqlCommand = New _ SqlCommand("Select Note FROM HomeBASE.dbo.Notes INNER JOIN " & _ "HomeBASE.dbo.NoteType_ID ON HomeBASE.dbo.Notes.NoteType_ID = HomeBASE.dbo.NoteType_ID.NoteType_ID " & _ "where HomeBASE.dbo.NoteType_ID.description =" & "'" & NoteType & "'" & "and HomeBASE.dbo.Notes.Job_ID = TWCUSTOM.dbo.fn_TW_GetCurrentJobID()", conSql) conSql.Open() Dim drSqlDataReader As SqlDataReader = cmd.ExecuteReader() drSqlDataReader.Read() Dim Notes = drSqlDataReader.Item(0).ToString() drSqlDataReader.Close() conSql.Close() Return Notes End Function Tag: Problem with menus Tag: 73510
  - 12
    - Problem loading a windows form. Please help. I have created a .net windows form in vb.net and compiled it as a .dll. I then register the .dll with regasm. I then call the form in a vb 6 application using the following code. dim c as object set c = createobject("LaborOrg.form1") c.show It works great on my developer machine. I place the .dll and the .tlb on the client's server and regasm the dll. I check the registry and it shows LaborOrg.form1. When I click the button to display the form nothing happens. The app and the winform dll are both on the server and I am trying to run it from the server. I do have .net framework on the server. Any suggestions? Tag: Problem with menus Tag: 73504
  - 13
    - Form's KeyDown delegate not called when in DropDownList ComboBox I have a form with a delegate set up for the KeyDown event. I have set KeyPreview=true and the delegate is called correctly whenever I press a key, except if the active control on that form is a DropDown ComboBox. If I change that ComboBox to be DropDownStyle=ComboBoxStyle.DropDowList the delegate fires when I press a key in that control, as I would expect. The problem is I don't want to restrict the ComboBox to a fixed list of options. The user needs to be able to select, or type their own option. I have reproduced this in an extremely trivial app - one form, two comboboxes, one delegate, and no databinding etc. Does anyone know whether I could be doing something else that has created this problem, or whether this is a known bug? I have searched but can't find a post that seems relevant. Thanks, Scott. Tag: Problem with menus Tag: 73501
  - 14
    - UPDATE problems with a large treeview Is there a way to update a single node attribute without regenerating the whole tree from the server side? I'm supposing I should use javascript but feel not sure if I can exploit the more advance features of dot.net env Thanks, Daniele Tag: Problem with menus Tag: 73500
  - 15
    - Empty value in binded combo box Hi all. I have to display a dialog adding a new DataRow into the DataTable (say, dtMain). One field (say, "Location") of dtMain is a reference to the "ID" field of the other table (say, dtLocations) and I want this field to be shown on the dialog form as a list of values of all "Name" fields of dtLocations, not as a list of "ID" numbers. I bind as follows: // Making referenced data displayable by their names dlgEditor.comboBoxLocation.DataSource = dtLocations; dlgEditor.comboBoxLocation.DisplayMember = "Name"; dlgEditor.comboBoxLocation.ValueMember = "ID"; The other requirement is that initially I have to display the empty Location field on the dialog form. dtLocations does not contain a row with empty "Name" value. Of course, I would be glad to do dlgEditor.comboBoxLocation.SelectedValue = "" or something like this but I get a natural exception. This is what I do. Before I show the adding dialog form, I add the temporary DataRow into dtLocations with empty "Name" field: DataRow rowWithEmpty = dtLocations.NewRow(); dtLocations.Rows.Add(rowWithEmpty); dlgEditor.comboBoxLocation.SelectedValue = DBNull.Value; // or "" Then I show the dialog, everything looks fine. After the dialog isclosed, I delete this temporary row from the dtLocations: dtLocations.Rows.Remove(rowWithEmpty); This works (the only thing I don't like is that this temporary empty value is available among combo box values) but I am not sure I did what I had to do in this situation (I am a newcommwr in .NET). Is there any smarter decision? Thanks, Dmytro Pavlov. Tag: Problem with menus Tag: 73497
  - 16
    - Best Place To Store Personal Information Hi to All, I'm developing an application in VB .NET. I have a question: what is the best place to save personal settings of my users? I mean, when a user uses my application, it can create a personal profile (e.g. last files opened, custom settings, etc...). What is the best place to save them? At first, I thought to save them in the registry, in the CURRENT_USER section, but I'm not sure every user can have read/write access to it. What do you suggest? Where can I find more information? Thanks, Marco Tag: Problem with menus Tag: 73496
  - 17
    - MainMenu Colour How can I change a main menu's colour ? It appears white in the design view but when i run the app it is grey. -- There are 10 types of people. Those who understand binary and those who dont. Vedant Lath Tag: Problem with menus Tag: 73492
  - 18
    - click event on a nested control I have a form that has a bunch of nested controls in it. How do I detect a mouse click on any of those controls in that form? I don't actually care which control receives the click event in this case, just want to know if any part of this form is being clicked on. Obviously I could hookup the clicked event of every single child control, but is there an easier way? Thanks. - Harry Tag: Problem with menus Tag: 73491
  - 19
    - Re: Free Menu Control Supporting Tabled PC Ink on Menu Items This is a multi-part message in MIME format. ------=_NextPart_000_0016_01C45571.98718B60 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Forwarding to a larger group "Rhy Mednick" <rhy@rhy.com> wrote in message news:... I've been developing a series of controls for the Tablet PC which are = available as open source. The first of the controls is a menu control = and it's available at http://www.sourceforge.net/projects/inkmenu. The = current release is a beta release, but the more people who try it out = and report problems with it, the faster it'll make it to its final = release. If you're interested, go check it out. It's free! Here is a short description from the site: The Chicken Scratch Software Menu Control is a .NET menu control = that mimics the functionality of the menu in Microsoft Office but = extends it to display Tablet PC Ink for menu items. It is being written = in C# and targeting the .NET Framework v1.1=20 I think the control is pretty cool, but I wrote it so I suppost that = I'm biased. - Rhy ------=_NextPart_000_0016_01C45571.98718B60 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> <HTML><HEAD> <META http-equiv=3DContent-Type content=3D"text/html; = charset=3Diso-8859-1"> <META content=3D"MSHTML 6.00.2900.2149" name=3DGENERATOR> <STYLE></STYLE> </HEAD> <BODY bgColor=3D#ffffff> <DIV><FONT face=3DArial size=3D2>Forwarding to a larger = group</FONT></DIV> <BLOCKQUOTE dir=3Dltr=20 style=3D"PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; = BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px"> <DIV>"Rhy Mednick" <<A = href=3D"mailto:rhy@rhy.com">rhy@rhy.com</A>> wrote=20 in message news:...</DIV> <DIV><FONT face=3DArial size=3D2>I've been developing a series of = controls for the=20 Tablet PC which are available as <STRONG>open source</STRONG>. The = first of=20 the controls is a menu control and it's available at </FONT><A=20 href=3D"http://www.sourceforge.net/projects/inkmenu"><FONT = face=3DArial=20 size=3D2>http://www.sourceforge.net/projects/inkmenu</FONT></A><FONT = face=3DArial=20 size=3D2>.  The current release is a beta release, but the more = people who=20 try it out and report problems with it, the faster it'll make it to = its final=20 release.  If you're interested, go check it out.  It's=20 free!</FONT></DIV> <DIV><FONT face=3DArial size=3D2></FONT> </DIV> <DIV><FONT face=3DArial size=3D2>Here is a short description from the=20 site:</FONT></DIV> <BLOCKQUOTE dir=3Dltr style=3D"MARGIN-RIGHT: 0px"> <DIV><FONT face=3DArial size=3D2>The Chicken Scratch Software Menu = Control is a=20 .NET menu control that mimics the functionality of the menu in = Microsoft=20 Office but extends it to display Tablet PC Ink for menu items. It is = being=20 written in C# and targeting the .NET Framework v1.1 = </FONT></DIV></BLOCKQUOTE> <DIV dir=3Dltr><FONT face=3DArial size=3D2>I think the control is = pretty cool, but I=20 wrote it so I suppost that I'm biased.</FONT></DIV> <DIV dir=3Dltr><FONT face=3DArial size=3D2></FONT> </DIV> <DIV dir=3Dltr><FONT face=3DArial size=3D2>-=20 Rhy</FONT></DIV></BLOCKQUOTE></BODY></HTML> ------=_NextPart_000_0016_01C45571.98718B60-- Tag: Problem with menus Tag: 73490
  - 20
    - ComboBox Drop Up in Grid? I have a ComboBox inside my WinForms DataGrid. The grid has about 10 rows. The ComboBox has 100+ items in it. When I access the ComboBox on grid row 10, the list flies off the bottom of the form window and I can't see even the scrolling arrows on the ComboxBox. How can I make it "scroll up" so that I always get a full view of the combo? Thanks. Tag: Problem with menus Tag: 73489
  - 21
    - Getting a date from another form I have a main form with a textbox for a date. When I click this textbox I have another form with only a calendar control, an OK button and an Exit button that I want to open and the user select a date then click ok. I then want the date that the user selected to be put into this textbox on the main form. I am new to vb.net, can someone explain how to do this? Thanks in advance! Kent Tag: Problem with menus Tag: 73486
  - 22
    - System.Windows.Forms.PrintDialog PrinterSettings Collate Hi, I am trying to get the collate setting from the printersettings member of the printdialog. Currently i can set the collate member to true, and when i display the PrintDialog the checkbox will be checked. But, regardless whether the user leaves the check box checked or uncheck it (or if i default the collate to false), ALWAYS the value after the dialog is closed is PrintDialog.PrinterSettings.Collate = false. Everything else is working (i get the number of pages, etc). What could be happening? Thanks, José Araujo Tag: Problem with menus Tag: 73482
  - 23
    - ListView Control: Can Header Column Colors be changed I have a listview control and default column header colors are black. Can I dynamically set each column header of the listview to a different color? Goal is to have: 1) column headers different colors(i.e column one blue, second column red third column header green etc) 2) can subitems also get set to different colors (not by row). appreciate any guidance. thanks ngottlie@bassocap.com Tag: Problem with menus Tag: 73479
  - 24
    - Global Event For Any Control That Is Changed Is there a global event anywhere that is generated for any control that has a change? I am looking for something to enable and disable an "apply" button. Amy Tag: Problem with menus Tag: 73477
  - 25
    - How to capture UserControl mouse events in it's container Hello, I want to be able to capture UserControl mouse events by the container of the UC. My final goal is to be able to move at run-time the UC in the container. I have been able to do this with regular controls, by capturing the MouseDown,MouseMove and MouseUp events. But when it comes to UserControls, the mouse events are captured by the UC's different controls and not the container. I have tried setting the Capture property of the container to True but it does'nt help. If someone knows the answer to this, please let me know. Thanks Tag: Problem with menus Tag: 73470
- Next
  - 1
    - IBindingList: AddIndex, ApplySort Does anyone know of any examples that demonstrate how to best implement these methods of IBindingList? Tag: Problem with menus Tag: 73467
  - 2
    - Datagrid: Bind to custom collection, layout at design time I am binding a datagrid to a custom collection of data objects. I will be doing this quite often for the app I am working on, so I have a practical issue: Are there any tricks that will allow me to configure columns in the grid at design time? From what I can tell, this can only be done when binding to a DataTable dropped on the form at design time. Setting all the column characteristics in code is going to get quite tedious. Tag: Problem with menus Tag: 73466
  - 3
    - MDI Child From Problem Our team is working on an MDI application. When we create a MDI child form in the normal fashion, assigning MdiParent property to the reference of the main form. The child form displays ok with the maximize and minimize button. But, when the child form is maximized the control buttons for the child window are not displayed in the menu bar of the main form. This makes it impossible to restore the sizeo of the child form. Does anyone have a hint or idea what may be going on here? TIA, Jim Tag: Problem with menus Tag: 73464
  - 4
    - Using LogonUser to authenticate a user Hi, I need the ability to authenticate a user within my application against a specific domain. The machine where the application is running might be part of this domain, another domain or no domain. I am trying to use the LogonUser API which seems to work fine when the machine is part of the target domain, but it does not work when the machine is not part of a domain. The ultimate goal is that once the user authenticates, I impersonate the user and connect to a database using SSPI. Is there some way that I can achieve this functionality? Thanks. Tag: Problem with menus Tag: 73463
  - 5
    - Is there an event after form activation? I am trying to run a method on a class in a wondows application(C#). The application has only one form(let's say frmMain). The method on the class has some event handler and I want to print the messages from those events on to the frmMain. I have tried to run the method under from activation event.The method runs ok but I can't see the messages until the method call is completed (and it defeat the purpose). The problem is--the form itself has not been painted completely. So my question is--where do I run the method? Thanks, Prodip Tag: Problem with menus Tag: 73460
  - 6
    - The "Visible" property of a parent control ruins that one of its child controls Hi all, I got a problem: I have a Panel control which has many mixed child controls (buttons, checkboxes, comoboxes). All controls are visible (the parent container Panel is also visible). My problem is that when I set the Visible property of the Panel to false and try to read the Visible property of any of its child control, the result is always false??? How can I get the original value of the Visible property of any child control?? I'd appreciate your prompt reply, Thanks a lot .. Veszko /****************************/ Panel pnl = new Panel(); . . . pnl.Visible = true; Button btn = new Button(); . . . btn.Visible = true; pnl.Controls.Add(btn); . . . MessageBox.Show(pnl.Visible.ToString()); // The result is "True" MessageBox.Show(btn.Visible.ToString()); // The result is "True" pnl.Visible = false; MessageBox.Show(pnl.Visible.ToString()); // The result is "False" MessageBox.Show(btn.Visible.ToString()); // The result is "False" ... which is not OK!!! // I need to know the original value of "btn.Visible" /****************************/ Tag: Problem with menus Tag: 73457
  - 7
    - TabPages reordering?!? Hi! I uses the TabControl included in .Net Framework. Sometimes during design time I have recognized that the TabPages are reordering. It is a rather annoying behaviour. Anyone that experienced that to and has a solution for it? Thanks Anders Tag: Problem with menus Tag: 73453
  - 8
    - Coping in .NET I have a ListView control with several columns and rows worth of data. What I wantto be able to do is to allow the user to hit copy and it will copy this information to the clipboard. Then I would like the user to be able to open up any of the following application; Excel, Word, PowerPoint or WordPad and be able to paste the data into these applications. In Excel it should obviously paste the information into the different columns and rows. In Work and PowerPoint I would like to be able to create a table put the information into the applications this way. Ideally pasting into WordPad would also work and just provide the data, in neat format, like tab between the columns and enters between the rows. Basically I want it to act similar to if you copy information from Excel and try and paste it into these other applications. Tag: Problem with menus Tag: 73450
  - 9
    - Autoformat in textbox Hello! In the VB6, there was a property for the textbox (DataFormat) that decided which format the text should have. How is this done in .NET? /Miro Tag: Problem with menus Tag: 73448
  - 10
    - Autoformat in textbox Hello! In the old VB6 there was a property for the textbox (dataformat) where you could define how the text should be formatted. How could this be done in .NET? /Miro Tag: Problem with menus Tag: 73447
  - 11
    - Check if TextBox changed on leave event I want to check if the text in a text box has changed in the TextBox_Leave event. I can do this by hooking up TextBox_TextChanged() and settting a flag, and check that flag in TextBox_Leave(). Is there a tidier way to do this? What I would really like is a custom EventArgs parameter to an event containing an IsTextChanged property. Richard. Tag: Problem with menus Tag: 73445
  - 12
    - DataGrid: Real-Time Updates using a DataSet I have a SystemData class (Singleton class extends the DataSet) which has one Table (Trace: 4 Columns). I start a thread in its constructor which keeps on adding data to the table (simulating Real-Time data). I have a form (Form1) in my C# project which has a DataGrid (DataGrid1). I have set the DataSource property of this grid to the "Trace" table created above. I can see the data being added to the grid instantaneously but after some time the system hangs up and I see the following Stack Trace. It also hangs up if I try to change the Column width in the grid. I have no clue whats going on as I am not trying to set any tool tips. ********************Stack Trace*************************** system.windows.forms.dll!System.Windows.Forms.DataGridToolTip.CreateToolTipHandle() + 0x1db bytes system.windows.forms.dll!System.Windows.Forms.DataGrid.ResetToolTip() + 0x44 bytes system.windows.forms.dll!System.Windows.Forms.DataGrid.OnLayout(System.Windows.Forms.LayoutEventArgs levent = {System.Windows.Forms.LayoutEventArgs}) + 0xad bytes system.windows.forms.dll!System.Windows.Forms.Control.PerformLayout(System.Windows.Forms.Control affectedControl = <undefined value>, string affectedProperty = null) + 0x7c bytes system.windows.forms.dll!System.Windows.Forms.Control.PerformLayout() + 0xf bytes system.windows.forms.dll!System.Windows.Forms.DataGridColumnStyle.set_Width(int value = 123) + 0x4f bytes system.windows.forms.dll!System.Windows.Forms.DataGrid.ColResizeEnd(System.Windows.Forms.MouseEventArgs e = {X=158 Y=26 Button=Left}) + 0x19f bytes system.windows.forms.dll!System.Windows.Forms.DataGrid.OnMouseUp(System.Windows.Forms.MouseEventArgs e = {X=158 Y=26 Button=Left}) + 0x7f bytes system.windows.forms.dll!System.Windows.Forms.Control.WmMouseUp(System.Windows.Forms.Message m = {System.Windows.Forms.Message}, System.Windows.Forms.MouseButtons button = Left, int clicks = 1) + 0x261 bytes system.windows.forms.dll!System.Windows.Forms.Control.WndProc(System.Windows.Forms.Message m = {System.Windows.Forms.Message}) + 0x49b bytes system.windows.forms.dll!ControlNativeWindow.OnMessage(System.Windows.Forms.Message m = {System.Windows.Forms.Message}) + 0x13 bytes system.windows.forms.dll!ControlNativeWindow.WndProc(System.Windows.Forms.Message m = {System.Windows.Forms.Message}) + 0xda bytes system.windows.forms.dll!System.Windows.Forms.NativeWindow.DebuggableCallback(int hWnd = 26871752, int msg = 514, int wparam = 0, int lparam = 1704094) + 0x3d bytes system.windows.forms.dll!System.Windows.Forms.Application.ComponentManager.System.Windows.Forms.UnsafeNativeMethods+IMsoComponentManager.FPushMessageLoop(int dwComponentID = 1, int reason = -1, int pvLoopData = 0) + 0x349 bytes system.windows.forms.dll!ThreadContext.RunMessageLoopInner(int reason = -1, System.Windows.Forms.ApplicationContext context = {System.Windows.Forms.ApplicationContext}) + 0x1f3 bytes system.windows.forms.dll!ThreadContext.RunMessageLoop(int reason = -1, System.Windows.Forms.ApplicationContext context = {System.Windows.Forms.ApplicationContext}) + 0x50 bytes system.windows.forms.dll!System.Windows.Forms.Application.Run(System.Windows.Forms.Form mainForm = {Testing.Form1}) + 0x34 bytes > Testing.exe!Testing.Form1.Main() Line 122 C# ******************************************************** ********************SystemData.cs************************** using System; using System.Data; using System.Threading; using System.Windows.Forms; namespace Testing { public class SystemData : DataSet { #region Private Variables private static SystemData m_instance = null; #endregion #region Public Constructor private SystemData() { m_Write = new ManualResetEvent(true); // Add Trace Table DataTable dtTrace = new DataTable("Trace"); dtTrace.Columns.Add("Time Stamp", Type.GetType("System.String")); dtTrace.Columns.Add("Module Name", Type.GetType("System.String")); dtTrace.Columns.Add("Method Name", Type.GetType("System.String")); dtTrace.Columns.Add("Message", Type.GetType("System.String")); Tables.Add(dtTrace); Thread m_SubscriptionThread = new Thread (new ThreadStart (FillData)); m_SubscriptionThread.Start(); } #endregion #region Public Methods public static SystemData GetInstance() { if ( m_instance == null ) m_instance = new SystemData(); return m_instance; } #endregion #region Private Methods private void FillData() { while (true) { Tables["Trace"].Rows.Add ( new Object[] {DateTime.Now.ToString(), "Module", "Method", "Message"} ); Thread.Sleep (1000); } } #endregion } } ******************************************************** Tag: Problem with menus Tag: 73444
  - 13
    - Slow Form Controls Drawing Hi together, my first test with C#.NET (MS Visual Studio 2003; .NET 1.1) was very disappointing... The display of a dialog looks like in former days... so slow! Yes I know the JIT compiler ... but this is not the problem (it occurs even if you display the dialog more than once). The display process of painting the controls is very slow (even with a 2Mhz PC)! I searched the whole newsgroups and can't find any other user who has this problem... and this I can't understand. I tried it meanwhile on 3 different PCs (all about 2 MHz and about 512 MB). Here my (very simple) scenario: a. I simply created a new C# windows application and defined the main form as MDI container. b. I added a main menu which contains one option for displaying a dialog form. c. I created the dialog form and put only 5 controls on this form (one group box and 4 textboxes). This means no special overloaded user controls! d. So now let's start this "big" application. I select the menu option and the dialog appears (ok...) But if you look how the form will be displayed you can see that first of all the form will be drawn, and at all locations where the controls will be displayed, a rectangle with the (dark gray) background color of the MDI form is shown through. After this the controls are drawn. Ok, this goes fast but nevertheless you see these dark gray rectangles for a short time and this looks very unprofessionel... If you rebuild this scenario with former C++ or VB6 applications, it's not the case. First I thought there are different window styles for .NET forms defined (e.g. difference with WS_CLIPCHILDREN or WS_CLIPSIBLINGS) but the "Spy" tool shows me the same settings... This means there must be different implementation for erasing the background or drawing the controls????? Is there no .NET developer which is annoyed by this behaviour??? Thanks for all comments or hints about this topic! Oliver Tag: Problem with menus Tag: 73443
  - 14
    - Add WebBrowser to Panel I can't add a WebBrowser to a Panel. Is it required to add a WebBrowser directly to a Form? It is because I can't setup the property of WebBrowser with Panel only. I can't setup the WebBrowser.ContaingControl , WebBrowser.OcxState. Tag: Problem with menus Tag: 73441
  - 15
    - Problems Adding windows forms in a managed mfc project Hello! We have a pretty large application written in VC6.0 (MFC). To be familiar with .NET we began to use .NET 2003 version, and still write our code in C++. I tried to select the "Use Managed Extensions" to Yes. With a lot of error during link - I fixed this - and we are now using Managed Code. I inserted a new Windows form into the application - how can I use this class - or form - in my original code? It's a simple "click on button (in MFC) and get the new Windows Form". THere are no classes as I'm used to. Just add the class into the cpp file and do a DoModal to that class. Can anyone help me please. A little clue would be greatly appreciated. -- - Lars Tag: Problem with menus Tag: 73439
  - 16
    - Data Validation Hi there I am trying to implement very simple field data validation: I have a form with one TextBox (textBox1) on it. To validate user input I implemented Validating event handler (usual stuff) private void textBox1_Validating(object sender, System.ComponentModel.CancelEventArgs e) { string error = null; if (textBox1.Text == String.Empty) { e.Cancel = true; error = "need text here"; } errorProvider.SetError((Control)sender, error); } My problem is that when I click on formâ??s control box close button I donâ??t want any validation to happen as Iâ??m going to close the form. If I had my own â??Closeâ?? button on this form I could set itâ??s CausesValidaton property to false and the problem would be solved. Are there any properties of the form that I can set to avoid validation? Any suggestions? Thanx Tag: Problem with menus Tag: 73437
  - 17
    - Changing Extender Property name?? Hi All, I implemented Extender in my custom menu, so as to have a ImageIndex property for each menu item. The property appears as "ImageIndex on peMainMenu1" for each menu item. But I want it like just "ImageIndex" Is there any way to change this extender property name? (Note: Extender is implemented on the MainMenu derived class itself, and I have restricted in CanExtend(), so as to get the extender properties for only current menu instance) Thanks Prashanth Tag: Problem with menus Tag: 73436
  - 18
    - Multithreading and Creating new controls I'm trying to dynamically create a set controls in a Threadpool and then add them to thte Controls collection of a Form (the main thread). The controls seem to be created in the thread an get passed back successfully via an derived EventArgs class, but I get "invalid handle" error messages when trying to work them back on the main thread. I've seen a number of articles about a control being "owned" by the thread that created it, so, my question is, is what I'm trying to do even possible? Is there some other way I should go about it? Tag: Problem with menus Tag: 73432
  - 19
    - Control designer for custom user control property I have a control that I've created and it exposes several formatting properties through a "Format" member. I've created a control designer that gets activated in Visual Studio through a designer verb. The designer gets activated and is able to read and write to the special Format property of my control. However, when I run the program all my changes are lost. My Format property doesn't show up in the properties area of VS for the control, but I know my property has been changed because when I reopen the designer it reflects the changes. I suppose that this behavior makes sense because Visual Studio doesn't know anything about my Format property which I create from a custom class. Do I need to provide some special serialization routines in my designer to save my changes in the form? If so, how do I go about doing that. I have a book that taught me how to create the designer but the only properties it ever changes in its demo are ones that show up in the properties window. Thanks for the help. - Rhy Tag: Problem with menus Tag: 73429
  - 20
    - 100's of UserControls to dynamically load ... How? Is there are equivalent activity in .NET Windows to MyControl =LoadControl("NamedContol.ascx") ? I need â??loadâ??, add to a ControlsCollection a particular UserControl based on a run-time XML stream. For example by picking off attribute: UseVisualControl=â??SomeUserControlâ?? There will be 100â??s of such UserControls available for the stream to request. From this static, design-time snippet: Dim MyUserContol As SomeUserControl = New SomeUserControl Me.Panel1.Controls.Add(MyUserContol) How can I do this dynamically, creating the requested â??SomeUserControlâ?? on the fly WITHOUT a gigantic case statement: Select Case UseVisualControl Case â??AUserControlâ?? Dim MyUserContol As AUserControl = New AUserControl Me.Panel1.Controls.Add(MyUserContol) Case â??BUserControlâ?? â?¦ Dim MyUserContol As BUserControl = New BUserControl Me.Panel1.Controls.Add(MyUserContol) Case â??CUserControl â?¦ Dim MyUserContol As CUserControl = New CUserControl Me.Panel1.Controls.Add(MyUserContol) Beyond this â?¦ I would like to be able to catalog the UserControls available as part of the XML editing / creation. Speaking to the user â?¦ For this node, here is a list of UserControls you can select from (to set UseVisualControl=â??SomeUserControlâ??). Is there a way to catalog them programmatically? Regards, John Tag: Problem with menus Tag: 73426
  - 21
    - Problem w/ .RESX files (MR) I've created a custom control. And now I've something that prevents me from using the designer to layout controls on my custom control. I tried deleting the .resx file, thinking the VS would just regenerate it, but did not. Here's how I got the problem: I created a new user control. I called it BaseControl. I created another new user control. I called it DerivedControl. After VS generated the .cs file, I changed the base class to BaseControl. EG: public class BaseControl : System.Windows.Forms.Control public class DerivedControl : BaseControl Now I am unable to add controls to DerivedControl using the designer. I have to manually create the code in .cs file. This gets really hard to lay things out. So, what I can do so that I can use the designer? Thnx Matt Tag: Problem with menus Tag: 73425
  - 22
    - grab a component hi: how do i grab a component by knowing its hwnd? thank you. Tag: Problem with menus Tag: 73419
  - 23
    - grab a component how do i grab a component by knowing its hwnd?thank you. Tag: Problem with menus Tag: 73418
  - 24
    - grab a component how do i grab a component by knowing its hwnd?thank you. Tag: Problem with menus Tag: 73417
  - 25
    - namespace design help Hi there, I am designing a application that has many different parts to it i.e. Database read and write, Encryption classes, printing functionality. etc etc I have created a standard namespace i.e. mycompanyname.myapplication Is it better to then create a new name space for database and encryption parts i.e. mycompanyname.myapplication.encryption mycompanyname.myapplication.database or is it better to stick everything in one name space?? I am also thinking about designing some seperate dll's (modules) for the app, what naming convention should i use for the name space here i.e. just mycompanyname.myapplication or drop down to mycompanyname.myapplication.mydllFunctionality Any help or guidance would be gratefully appreciated Thanks Ian Tag: Problem with menus Tag: 73416

Hello:

I have a MainMenu and want to drag the MenuItems by pressing ALT + MouseDown
on an Item.

I can not find any event to do it because there is no way to stop the
MenuItem to popup,
even overriding and not calling the base methods.. and when the submenu is
visible, the messages can not be captured, even using Capture = true or a
Message Filter.

Any suggestion??

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Re: Problem with menus by Daniel

Daniel
Wed Jun 23 02:56:09 CDT 2004

Try adding the message filter before the menu item is slected

:)

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