Displaying Help file using C#

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  - 1
    - Looking for the ErrorProvider a grid uses when bound to IBindingLi Hi, I bind a data adapter (which implements the IBindingList interface) to a data grid. For the data rows there is also an adapter which implements the ICustomTypeDescriptor, IEditableObject and IDataErrorInfo interfaces. All works fine to bind my custom data types to the grid using my adapters. Now it comes to validation: my IDataErrorInfo code returns the error message strings for the columns. If I do that, the data grid automatically shows an icon in each grid cell where the validation failed. I did not set or use an error provider object. My problem: I want to use another icon. So I need the error provider instance that the grid uses. But what instance does the grid use? Does anyone know where this error provider instance comes from and how can I access it? Thanks, Michael. Tag: Displaying Help file using C# Tag: 78038
  - 2
    - MDI Container without scrollbars Hi, how can I set a MDI container without scrollbars (if the child is larger than the parent)? Set AutoScroll = false doesn't work. Please help me. thx Rochi Tag: Displaying Help file using C# Tag: 78033
  - 3
    - Alignment Hi, Is there a way to use a alignment for the datagrid header and a different one for the content of this column? I've got a column with amounts. the amounts I would like to align to the right; The column header however I want to be aligned to the left. Michel Tag: Displaying Help file using C# Tag: 78030
  - 4
    - Don't need to do load event from inheritance form Hi all, Assuming I have 2 form controls on my application. First form is parent form and second form is inheritance form that inherit from first form. When I want to view designer of second form (inheritance form) it is always done at load event of first form (parent form). I have test by set form visible property at load event of first form to false and then when I load the second form the form is invisible. Can anyone explains to me? I don't need to do load event of first form because sometimes I want to add new control to second form but it occurs some error. How can I ignore the load event of parent form? Thanks, KPH Tag: Displaying Help file using C# Tag: 78018
  - 5
    - Creation of semi-transparent filled polygons? I have relatively little experience in Dot Net graphics. I have a picturebox with a background image. For the purpose of this application it is necessary to draw polygons (both filled and outline only) to emphasize parts of the image. It would probably be better if the background image remained at least partly visible. Is there any simple way to generate a semi-transparent filled polygon? Tag: Displaying Help file using C# Tag: 78016
  - 6
    - Drag and Drop from one form to a 2nd form I've been trying to perform a drag and drop operation from a PictureBox control in a standard C# form (with a FixedToolWindow border) to another standard C# form, but cannot get it to work properly. In the FixedToolWindow, I have the following code: myClass c = new myClass(); // contains public variable m_MouseIsDown private void pictureBox1_MouseDown(object sender, MouseEventArgs e) { if (! (pictureBox1.Image == null)) c.m_MouseIsDown = true; } private void pictureBox1_MouseMove(object sender, MouseEventArgs e) { if (c.m_MouseIsDown) pictureBox1.DoDragDrop(pictureBox1.Image, DragDropEffects.Copy); } In the second form, I have the DropAllow property enabled and have the following code in it: myClass c = new myClass(); // contains public variable m_MouseIsDown private int picboxCount; private PictureBox picbox; private void Form1_DragDrop(object sender, DragEventArgs e) { if (c.m_MouseIsDown) { int i = picboxCount; picbox = new PictureBox(); this.Controls.Add(picbox); picbox.Name = "pictureBox" + i.ToString(); picbox.BorderStyle = BorderStyle.FixedSingle; picbox.Size = new Size(24, 24); picbox.Image = (Image)e.Data.GetDataPresent(DataFormats.Bitmap); picbox.Location = this.PointToClient(new Point(e.X - 12, e.Y - 12)); picboxCount++; c.m_MouseIsDown = false; } } private void Form1_DragEnter(object sender, DragEventArgs e) { e.Effect = DragDropEffects.Copy; } One problem I've encountered is in the statement picbox.Image = (Image)e.Data.GetDataPresent(DataFormats.Bitmap); as I get a compilation error stating that it cannot convert from type 'bool' to 'System.Drawing.Image'. Commenting it out and hardcoding a value for the image, I still can't get the drag and drop operation to work. Any help would be greatly appreciated! Allen Tag: Displaying Help file using C# Tag: 78010
  - 7
    - Customize TaskBar Menu Hello, I'm trying to add a "Send to Notification Area" item to the context menu for my application's taskbar button. (For example, right-click a CHM file (i.e., SQL Server BOL) in the taskbar, and it has three extra menu items...Separater, Jump to URL, and Version.) The only thing I found that might be what I'm looking for is in C# (below)...having a hard time translating. How do I do this in VB.NET? Thank you! http://tinyurl.com/44ulh ' <snip> [DllImport("user32.dll")] private static extern IntPtr GetSystemMenu(IntPtr hWnd, bool bRevert); [DllImport("user32.dll")] private static extern bool AppendMenu (IntPtr hMenu, Int32 wFlags, Int32 wIDNewItem, string lpNewItem); public const Int32 WM_SYSCOMMAND = 0x112; public const Int32 MF_SEPARATOR = 0x800; public const Int32 MF_STRING = 0x0; public const Int32 IDM_ABOUT = 1000; private void Form1_Load(object sender, System.EventArgs e) { IntPtr sysMenuHandle = GetSystemMenu(this.Handle, false); AppendMenu(sysMenuHandle, MF_SEPARATOR, 0, string.Empty); AppendMenu(sysMenuHandle, MF_STRING, IDM_ABOUT, "About..."); } protected override void WndProc(ref Message m) { if(m.Msg == WM_SYSCOMMAND) switch(m.WParam.ToInt32()) { case IDM_ABOUT : MessageBox.Show("This is About dialog"); return; default: break; } base.WndProc(ref m); } ' </snip> Tag: Displaying Help file using C# Tag: 78007
  - 8
    - Go To Row in DataGrid Hello, I have an application in which a grid display rows to be insrtered into a DB. Upon failure, I built a list box with an errored row as the added Item and the RowError text as the displayed value in the List box. I want to be able to double click an error row in the list box, select the corresponding rows in the Data grid and make that row visible in the grid window. Mostly, this works fine. I am having two problems: 1. In the Double Click event, I "dataGrid1.Unselect(dataGrid1.currentRowIndex)". It simply does not Unselect a row. 2. I can find no way to get the grid to scroll to the programmatically selected row. I can see the row is selected (highlighted) but it is buried in the grid. Mklapp Tag: Displaying Help file using C# Tag: 78006
  - 9
    - Multiple Item DragDrop w/Listboxes Could someone show me an example where I could select multiple items from one listbox and drag and drop them in another listbox? (C# preferred) TIA Tag: Displaying Help file using C# Tag: 78004
  - 10
    - ActiveX Error with multiple AxWebBrowser controls within a tab-control I have a tab control in a which a few of the tabs include an AxWebBrowser browser control (More accurately, I'm using Carl Nolan's Html Editor in all but one of the tabs). When closing the application, a few .net error messages flash on the screen, too quickly for me to see the error message (I assume because the application closes immediately after. This does *not* happen if every webbrowser control is actually drawn to the screen at some point in the applications lifetime (so as long as each tab is selected at some point, these error messages do not occur). A similar problem occurs when I am editing the same form in Visual Studio. If I close the form without selecting each tab, I receive an error message saying: "The following exception has occured: TargetInvocationException: Unable to get the window handle for 'AxWebBrowser' control. Windowless ActiveX controls are not supported". This message pops up multiple times, always corresponding to the number of tabs I have *not* selected. I've found a very small number of posting of people who have had a similar problem, but I can't find any kind of resolution. Does anyone have any ideas as to what may be causing this error, and how to avoid it? Thanks, Joe Tag: Displaying Help file using C# Tag: 78001
  - 11
    - Exception trying to instansiate an inherited form I have created a form for my application. Once the form was working, I copied that form to a new form that would contain all the common elements of all forms in my application and made the existing form inherit from the common one. Now when I try to run my application I get the following error when I open the form: An exception occurred while trying to create an instance of WebWinFormTry1.frmNITSSForm. The exception was "Constructor on type MyAppTest.frmParentForm not found.". The relevant code for the 2 classes is included below. Can anyone tell me what I am doing wrong here. As far as I can tell, I have the constructor for both defined. TIA Ron L frmParentForm.vb: Option Strict On Imports System Imports System.Drawing Imports System.Collections Imports System.ComponentModel Imports System.Windows.Forms Imports System.Data.OleDb Public Class frmParentForm Inherits System.Windows.Forms.Form Protected frmMain As myAppMain Protected textIsDirty As Boolean #Region " Windows Form Designer generated code " 'Public Sub New() ' Default constructor not implemented. Need to pass the parent form in to work. ' MyBase.New() ' 'This call is required by the Windows Form Designer. ' InitializeComponent() ' 'Add any initialization after the InitializeComponent() call 'End Sub Public Sub New(ByRef frmMainNew As myAppMain) MyBase.New() 'This call is required by the Windows Form Designer. InitializeComponent() 'Add any initialization after the InitializeComponent() call frmMain = frmMainNew Call BindAndLoadControls() End Sub 'Form overrides dispose to clean up the component list. Protected Overloads Overrides Sub Dispose(ByVal disposing As Boolean) If disposing Then If Not (components Is Nothing) Then components.Dispose() End If End If MyBase.Dispose(disposing) End Sub 'Required by the Windows Form Designer ... code removed for brevity #End Region ... other common functions here End Class frmChildForm.vb: Option Strict On Imports System Imports System.Drawing Imports System.Collections Imports System.ComponentModel Imports System.Windows.Forms Imports System.Data.OleDb Public Class frmUserAdmin Inherits MyAppTest.frmParentForm Private dsUserList As New DataSet Private dsUserData As New DataSet Private dsPermissions As New DataSet Private permsList As DataTable #Region " Windows Form Designer generated code " 'Public Sub New() 'Default constructor not implemented. Need to pass in main form to work. ' MyBase.New() ' 'This call is required by the Windows Form Designer. ' InitializeComponent() ' 'Add any initialization after the InitializeComponent() call 'End Sub Public Sub New(ByRef frmMainNew As NITSSMain) MyBase.New(frmMainNew) 'This call is required by the Windows Form Designer. InitializeComponent() 'Add any initialization after the InitializeComponent() call frmMain = frmMainNew Call BindAndLoadControls() End Sub 'Form overrides dispose to clean up the component list. Protected Overloads Overrides Sub Dispose(ByVal disposing As Boolean) If disposing Then If Not (components Is Nothing) Then components.Dispose() End If End If MyBase.Dispose(disposing) End Sub 'Required by the Windows Form Designer ... Code removed for brevity #End Region ... code removed for brevity End Class Tag: Displaying Help file using C# Tag: 77995
  - 12
    - System Tray Program Using VB.NET. How can I create a system tray program that displays number as my system tray icon instead of an actual icon? I am creating a weather program and when I minimze my program to the system tray I would like to show the temprature in the system tray. thanks in advance, Lou Tag: Displaying Help file using C# Tag: 77991
  - 13
    - DataGrid Column Headers I have a number of datagrids bound to collections. When the collections are populated i get the column headings as per the ColumnStyles for the grid. However if the collection is empty no column headings are visible. Is there a way to force the headings to display other than having a dummy item in the collection? guy Tag: Displaying Help file using C# Tag: 77990
  - 14
    - RichTextBox Fields Hy, Is there any way (other than implementing it all by myself) to have text sections within a RichTextBox be only editable as whole sections? (namely, the user won't be able to select parts of a section and would only be able to delete the entire section) Thanx Tag: Displaying Help file using C# Tag: 77989
  - 15
    - RichTextBox Fields Hy, Is there any way (other than implementing it all by myself) to have text sections within a RichTextBox be only editable as whole sections? (namely, the user won't be able to select parts of a section and would only be able to delete the entire section) Thanx Tag: Displaying Help file using C# Tag: 77988
  - 16
    - Group icon blank when multiple dialogs are open In my application, if one dialog is open, the taskbar icon shows as the icon of the form. If multiple dialogs are open, then windows groups them under one icon in the task bar, but the icon is blank. The application definitely has an icon, as is show by the compiled executable. Does anyone know why it's blank? Tag: Displaying Help file using C# Tag: 77983
  - 17
    - Database independent application using C# 2003 Dear all I have to develop a database independent application in c# 2003. It means the underlying database should be anything like ACCESS, Oracle or SQL and my application should not get affected if i change between databases. i also have a requirement of storing 10,000 user records in my database. This database can also be created by our customers and weshould be able to use it. After reading ADO.NET i felt convinced that it is the solution for my requirement. But later i was thinking when i want to create a database independent application why i should use a database first of all, instead i can use XML. The following are the points supporting it. 1. XML universally accepted/standardized. 2. No hassle of connection to a database server, changing the DB adapters, customers having different databases facing problems in entering the data 3. Easily transferable and portable. Anybody can edit an XML file as there are lot of freeware available. The following are the points opposing it 1. Performance of parser while supporting 10,000 user records 2. Is it wise to think XML can be used in this way? Please help me out. Also from where can i get a sample c# applications storing the large user data (10,000 records) in XML file Ciao Hari Tag: Displaying Help file using C# Tag: 77975
  - 18
    - override of TreeView hi i want to override the windows forms tree view in a custom control in a way so the selected tree node does not center itself inside the tree view (is quite nasty if the tree view is scrollable, then you have to scroll back to get to the little + in front of the name). does anybody know which of the many focus methods i have to override for this purpose and how? regards gabriel Tag: Displaying Help file using C# Tag: 77974
  - 19
    - How to read All Data from SerialPort (2005) Hi, I'm experimenting with the Serial Port in VB.NET 2005. Although it isn't that easy to get any feedback from my COM-port as I thought it would be... How can I read all the Data that the port sends back? I tryed with SerialPort1.ReadLine, but that blocks the application and takes a lot of time (10 seconds!), I tryed SerialPort1.Read, but I have to read it into a buffer and has to indicate the count, but how do I know this? Does anybody knows a nice way to send and receive smoothly all the data from the SerialPort? Thanks a lot in advance, Pieter Tag: Displaying Help file using C# Tag: 77973
  - 20
    - 3-D FlatStyle is too flat! Hi, A System.Windows.Forms.Button with FlatStyle set to 3-D (Standard) is not 3-D enough for my application. Its hard to tell when the button is up or down. Users of my application need a strong visual feedback. Does anyone know if its possible to increase a Button's border width/thickness without overriding the Paint event and drawing the button manually? Thanks, Jeff Tag: Displaying Help file using C# Tag: 77971
  - 21
    - MdiChild - calling OnLoad() and OnActivated() i noticed the following behaviour in my MDI-Application: The order on wich the methodes OnLoad() and OnActivated() of a MDI-Child gets called first, depend on the value of the property WindowState of the Mdi-Child. If WindowState of a Mdi-Child has the value of "Normal", OnLoad() gets called bevore first call of OnActivated(). If WindowState has the value "Maximized", OnActivated gets called first time bevore OnLoad(). Can someone explain this benaviour? thanks Torsten Tag: Displaying Help file using C# Tag: 77967
  - 22
    - Delete allowed even when datagrid is set to readonly! I have a datagrid bound to a strongly typed dataset. The datagrid can be made readonly by either setting its ReadOnly property to True or by setting the dataset's DefaultView's AllowDelete, AllowEdit, and AllowNew properties to False. But in either case the datagrid still accepts a delete keypress (i.e. press the delete key on the keyboard) and while this doesn't actually delete the record it does set the dataset's HasChanges property to True thereby causing my code to incorrectly ask the user to save his changes. Can this problem be fixed? Tag: Displaying Help file using C# Tag: 77965
  - 23
    - Display XML held in a string Hi, I have a string with XML in it. I want to display this xml in a windows form. I have looked at Microsoft Web Browser control, but it seems to want to work with a url. How can I just pass my xml string for displaying? Thanks Martin Tag: Displaying Help file using C# Tag: 77963
  - 24
    - .NET Equivalent for ShowCaret, SetCaretPos Is there a .NET equivalent to the Win32 API's for ShowCaret and SetCaretPosition. I am trying to draw a blinking caret and hope that I donot have to go through and create my own graphics routine just to get a native caret look alike Tag: Displaying Help file using C# Tag: 77962
  - 25
    - assign the socket permission to the NTD winform hello i write a smtp client winform (using socket 25 connect to smtp server),and deploy it to iis by NTD (no-touch deployment),i can launch the form from the client machine,when i want connect to the smtp server,the security exception is thrown,i know that i have not assigned the socket permission in the client side to the downloaded assembly,but i don't know how to do that,who can give me a step-by-step instruction. any help will be appreciated. Tag: Displaying Help file using C# Tag: 77956
- Next
  - 1
    - BUG: WinForms Status Bar Problem on XP I think I've discovered a bug in the WinForms StatusBar control as implemented on Windows XP. A picture is worth a thousands words so: This is the way my form is *supposed* to look. Here you can see it running on my development server which is Win2003 Server: http://temp.codefanatic.com/usenet/looksgood.jpg This is the way my form looks on XP. Notice the status bar is being overwritten with the group box control: http://temp.codefanatic.com/usenet/looksbad.jpg The .NET code is identical on both machines. Any ideas? Sal Tag: Displaying Help file using C# Tag: 77946
  - 2
    - Issue with messageBox Hi I just fould a issue with MessgeBox. When i show the messagebox in my app. Now if the user click any where else on the form out of messagebox. The click event is kind put in a que. Now if there is a button or other control where that person clicked, the button / control click event is fired after my earlier procedure has finished. Here is how you can duplicate the thing. - Create a windowsform, put a button control on it, - Write a procedure onClick event of button Private Sub button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles button1.Click MessageBox.show("Test", "Test", MessageBoxButtons.OKCancel, MessageBoxIcon.Question, MessageBoxDefaultButton.Button1, MessageBoxOptions.DefaultDesktopOnly) End Sub - Now Build and run the app - Click the button - {move the Messagebox out of the way, so you can see the button} - click on the button again - now click any button on the Messagebox - {Now here is the problem} you will see the message box again. {message box for second click} can some tell how disable this feature in my app. or work around. i have tried disabling the control and also form before displaying the messagebox but still the same problem. Can anybody help Thanks in advance mk Tag: Displaying Help file using C# Tag: 77945
  - 3
    - Control validation problem prevents me from tabbing out of a contr I am using simple databinding on a small form with only about 10 controls. My problem is that the _second_ time I open the form and edit a value, I am no longer able to tab or click out of the control that I just changed the value in. Here's what I mean: 1. Open the app 2. Open the Details form (form uses databound values for textboxes, code below) 3. Edit the value in the ItemName textbox 4. Click the OK button to close the form 5. Open the Details form a second time 6. Edit the value in the ItemName textbox Result --> I am now unable to tab out of the ItemName textbox, click OK or do anything but close the form. This appears to be a problem with validation, since I cannot click on any buttons with CausesValidation = true but I can click on buttons with CausesValidation = false. However, none of my controls on the form have an event handler for the Validating event. This happens consistently throughout my application, on both small forms and large forms. I must be doing something incorrectly. Can someone point it out to me? Here's some code: MyDataSet.MyRow row = // a valid row from a typed dataset Inside Form_Load: BindField(ItemName, "Text", row, "ItemName"); public static void BindField(Control control, string propertyName, object dataSource, string dataMember) { Binding binding = control.DataBindings[propertyName]; if (null != binding) control.DataBindings.Remove(binding); control.DataBindings.Add( propertyName, dataSource, dataMember); } -- ---- Doug Perkes Tag: Displaying Help file using C# Tag: 77943
  - 4
    - How to change the font of the main menu in application window? I am developing a windows forms application using VS.NET in C#. I am using the MDI style. I have a main menu defined with several layers of menu items. I know that I can change the appearance of all menus by changing the Menu property within the advanced appearance of the system display properties. But I only want to change the font size and style of the menu within my application. How can I change the font of the menu only for my application? Thanks, Dave Tag: Displaying Help file using C# Tag: 77940
  - 5
    - Annoying! Form Cannot Be Activated Eventually (.NET 1.1) This is so annoying that I have to see if it's happened to anyone else and see if I'm missing something well-known (I am not a WinForms expert). Frequently, my form loses the ability to become active. This happens when I'm debugging with VS.NET 2003 - I've been debugging for a while, so wouldn't know whether it happens outside of the debugger. It happened just now when I maximized the form. It maximized just fine, but changed appearance to look inactive, and in fact was inactive. Clicking on any part of the form doesn't change anything. Mousing over a top-level menu item highlights it, but clicking on it does nothing. Mousing over the Close, Minimize and Maximize buttons highlights them as well, but clicking does nothing. Right-clicking the notification icon shows the correct menu, and I can minimize, maximize and restore. None of those makes the form active. Clicking in the body of the form seems to make the form caption flash briefly, but nothing happens. Now, the one thing I'm doing that's a bit unusual is that I'm hosting several one of several user controls in a panel in the middle of the form. I _did_ have a problem with these. I had meant to remove and Dispose the old user control before adding the new one, but that didn't work: public static void ShowControl(Control control, Control container) { System.Collections.ArrayList disposeList = new System.Collections.ArrayList(); foreach (Control old in container.Controls) { disposeList.Add(old); } foreach (Control toDispose in disposeList) { container.Controls.Remove(toDispose); if (!toDispose.IsDisposed) { //toDispose.Dispose(); // This crashed. I forget the exception. } } control.Dock = DockStyle.Fill; control.Size = container.Size; container.Controls.Add(control); control.Show(); control.BringToFront(); } Maybe this is catching up with me. Any suggestions? Every time this happens I have to start over. The only way I can close the form is through "End Process" in Task Manager! ----- John Saunders Tag: Displaying Help file using C# Tag: 77939
  - 6
    - Draw table with GDI+ Is there a quick and easy way to draw a table on a winform? For my university assignment, we are asked to practice drawing with GDI+, so we are not allowed to use any built-in controls. The table has 5 columns and 2 rows and the first row is the heading. I guess I could use g.DrawRectangle() and g.DrawLine() repeatedly, but that's too cumbersome, plus I want to achieve something like DrawRow(1) to insert data to a cell. Any good ideas? Thanks Walter Tag: Displaying Help file using C# Tag: 77938
  - 7
    - Passing large data between forms Hello, I have an application that simulates heat exchangers. There is a Edit form that allows to edit the parameters of the heat exchanger - 50-60 parameters. Currently Iam using 6 structures (each with 8-10 elements) that I pass between the main form and the edit form. These structures are also passed around in other forms and modules (for saving to file etc.). Is there a better way of doing this ? i.e. not using structures etc. Thank you. vikrantca Tag: Displaying Help file using C# Tag: 77937
  - 8
    - Impersonation and SQL Connections Hello all - I'm having a problem concerning Impersonation while connecting to SQL Server. I'm not sure if I'm posting this to the right newsgroups, so let me know if it belongs elsewhere, and please excuse the cross-post. I'm writing a Windows Forms application that makes direct calls to a SQL 2k database. This application requires a user to log in, and confirms their login and password with whatever they have in Active Directory. I had planned for the program to use the credentials of the user logged into the application (NOT Windows) when connecting to the SQL Server, but it seems I've encountered a slight pitfall. I've been reading that in this scenario, using simple Identity Impersonation, the SQL Server will attempt to connect as "NT AUTHORITY\ANONYMOUS LOGON" because of a limit to the impersonation context. I'm having trouble believing that this is true. I can impersonate users in ASP.NET just fine, and connect to databases using those credentials, but am unable to do the same through a desktop application? It doesn't make all that much sense, but then again, I'm somewhat of an amateur in this regard. So, that said, can anyone provide any examples or help to get this working? I'm happy to provide code samples, I just wasn't sure if it'd be necessary. Thanks! Clint Tag: Displaying Help file using C# Tag: 77935
  - 9
    - Add a small icon to column to signal a sort on this column in list Hello everybody! I have a sortable listview control (ie, can click on any column and sort asc/dec) however I would like to include a small icon, a 'triangle' or 'arrow' indicating that column the sort is on. This is common behaviour almost everywhere, including the windows explorer. I have searched everywhere and found little help... does anyone know how to do this? or if it is possible at all? Thanks a million! Greg Tag: Displaying Help file using C# Tag: 77932
  - 10
    - Getting Text from a RichEdit20a I am primarily a web developer, but I am branching out for this project into the world of Windows Forms. I am looking for any help, examples, samples to show me how to retrieve text from a RichEdit20a (or RichEdit20w) that exists in another application running on the same box. This is the only part of a large project that I am running that is new to me, so I want to get this sorted as soon as possible. Then I can relax and concentrate on actually writing the code. Any help would be appreciated. Thanks very much. Matt. Davies P.S. My apologies for a cross group post, but I wasn't sure which would be the most appropriate group...inexperience again ! Tag: Displaying Help file using C# Tag: 77926
  - 11
    - Bigger windows form that screen resolution ??!! Hi all, I want to create "the biggest" windows form, but, at design time, I cannot exceed 1292,972. My maximum screen resolution is 1280/960. I'm using Visual Studio .NET 2002. I found this at http://msdn.microsoft.com/library/default.asp?url=/library/en-us/cpref/html/frlrfsystemwindowsformsformclasstopic.asp : The maximum value of this property is limited by the resolution of the screen the form is running on. The value cannot be greater than 12 pixels over each screen dimension (horizontal + 12 and vertical + 12). There is no way to create a bigger form ?? Thanks Tag: Displaying Help file using C# Tag: 77921
  - 12
    - Master Detail in crystal report Hello I have tow tables Requests and Responses there is 2 relations between the 2 tables in 2 fildes Request_Date and Request_No. I want to display each request folowed by its responses(the request can have more than one response and differs in the Trial_No) the Request_No is unique on the day thnx moha Tag: Displaying Help file using C# Tag: 77918
  - 13
    - master detail in crystal report Hello I have tow tables Requests and Responses there is 2 relations between the 2 tables in 2 fildes Request_Date and Request_No. I want to display each request folowed by its responses(the request can have more than one response and differs in the Trial_No) the Request_No is unique on the day thnx moha Tag: Displaying Help file using C# Tag: 77917
  - 14
    - Master Detail in crystal report Hello I have tow tables Requests and Responses there is 2 relations between the 2 tables in 2 fildes Request_Date and Request_No. I want to display each request folowed by its responses(the request can have more than one response and differs in the Trial_No) the Request_No is unique on the day thnx moha Tag: Displaying Help file using C# Tag: 77916
  - 15
    - Master Detail in crystal report Hello I have tow tables Requests and Responses there is 2 relations between the 2 tables in 2 fildes Request_Date and Request_No. I want to display each request folowed by its responses(the request can have more than one response and differs in the Trial_No) the Request_No is unique on the day thnx moha Tag: Displaying Help file using C# Tag: 77915
  - 16
    - DataGrid: Can I use two text lines in the header ? Hello, I have some boolean columns in my datagrid. To minimized the column width I want to change the height of the header row and write the header text in two lines. Is this possible ? How can I do that ? Thank you Heinz Tag: Displaying Help file using C# Tag: 77913
  - 17
    - How do I listen on a directory? I know it is possible to use a listener on a directory so that if there is any change I can catch it and update my application accordingly. Anybody know or have a code example as for how to do this? Thanks, Haim. Tag: Displaying Help file using C# Tag: 77906
  - 18
    - Handle form closing I have an MDI form containing child forms. I want to handle form closing to display a confirmation message when a form is closed or when the main form is closed. However, the Closing even of the child forms is raised before the Closing event of the MDI form when you close the MDI form. So, if I catch the Closing event of the child forms and display a message, then catch the Closing even of the main form, then I get 2 messages displayed. Is there a way to know, when a child form is being closed, wether the user closed the child form or the mdi form? Thanks Etienne Tag: Displaying Help file using C# Tag: 77897
  - 19
    - Re: RE: Deriving the KeyChar on a KeyDown event. hi? v-jetan@online.microsoft.com ("Jeffrey Tan[MSFT]") wrote in message news microsoft.public.dotnet.framework.windowsforms:<1c3Q0qPpEHA.1520@cp msftngxa06.phx.gbl>... >Hi Phil, > >Does my reply make sense to you? Is your problem resolved? > >Please feel free to feedback. Thanks > >Best regards, >Jeffrey Tan >Microsoft Online Partner Support >Get Secure! - www.microsoft.com/security >This posting is provided "as is" with no warranties and confers no rights. > ------------------------------------------------------------------------------------ Posted from WWWCoder.com (http://www.wwwcoder.com - The Web Developer's Resource site. Get your free weblog, download free apps, read tutorials, and more. Tag: Displaying Help file using C# Tag: 77895
  - 20
    - Large Fonts not scaling correctly on tab control. I have a problem which I have been able to reproduce in a very simple project. I have a form with a single tabcontrol control with two tab pages. The tabcontrol's Anchor property is set to Top, Left, Bottom, Right (all 4 directions). On each tabpage, I have a DataGrid. Each DataGrid's Anchor property is also set to Top, Left, Bottom, Right. I developed this simple application with my System's DPI setting set to Normal Size (96) and everything worked perfectly. The problem came, however, when I changed my DPI setting to Large (120). The datagrid on the first tabpage (index 0) did not have the correct size (too large). On the second tabpage (and any others that were present in subsequent tests), everything was sized correctly. The same problem happens in reverse (developing in Large and moving to Normal). My workaround was to create an empty tabpage at the beginning of the set and remove it from the tabcontrol's TabPages collection during the form's load event handler. I could have also not used anchor and changed the control's width during the form's resize event. Any non-hack solution or explanation would be appreciated. Tag: Displaying Help file using C# Tag: 77893
  - 21
    - Datagrid Empty Set Here is one I am stuggling with: I have a project I'm developing in VB .NET. I have a datagrid in a window with two columns. The first column is readonly and the second column is not and initialized with Zero's. The values in column two must be numeric. How do I prevent the user from leaving an Empty set in the cell? I already have a handler that ensures the user enters numeric values. I would like to default to Zero if the user deletes a value or enters an empty set. Thankyou, Jeff Tag: Displaying Help file using C# Tag: 77887
  - 22
    - Negative Numbers? Hello, I have some textboxes that are doing addition: Dim AString As Double AString = Convert.ToDouble(TextBox1.Text) - Convert.To(DoubleTextBox2.Text) TextBox3.Text = AString.ToString("#,##0.00;(#,##0.00);0.00") When the result is negative it is displayed as "(46)" or whatever the value is. This makes it impossible to test for a negative number to make further additions: TextBox5.text = Convert.ToDouble(TextBox3.text) + Convert.ToDouble(Textbox4.text) Is there a work-around for this? I must have negative numbers that can be added together. Thanks, Chuck Tag: Displaying Help file using C# Tag: 77885
  - 23
    - Is there a way to lock columns on a datagrid so that they don't sc when the scroll bar is moved while allowing the other columns to scroll. Tag: Displaying Help file using C# Tag: 77884
  - 24
    - Using the same connection over many forms Hi, I'm writing a client-server winfroms application, I've notice that every time I use the wizard to create a bound datagrid, I create a new sqlconnection. I wish to create one connection in the main form, and use it in the rest. (b/c changing something in the connection string - like pwd user or db will make me go over all the classes now, and find all the connections the wizards creatred) what is the best way to do it ? Regards, Dani Tag: Displaying Help file using C# Tag: 77883
  - 25
    - ANN: New Barcode Library from ComponentScience! Announcement: ComponentScience is proud to release Barracuda 1.0; our newest .NET component library for Winforms, ASP.NET and the compact framework! Use Barracuda to generate Linear, Postal, or 2-dimensional barcodes in your ASP.NET, Compact framework, and Windows Forms applications. Barracuda 1.0 supports 27 different barcode symbologies with additional support for many variations. Creating barcodes with Barracuda is as easy as dropping a control on the form, picking a symbology, and specifying the data to encode; but the real power of Barracuda is in its ability to handle the most complex situations you may encounter with certain barcode symobologies. For example, if you need to use UCC/EAN-128 mode with the Code128 symbology, Barracuda makes it easy. An online demo is available at http://www.ComponentScience.net/Barcodes For more information, please visit http://www.ComponentScience.net/Elements/Barracuda Barracuda includes: - Support for multiple ASP.NET, Compact Framework, and Windows Forms in one package. - Support for the following symbologies: - Linear barcodes: Codabar, Code 11, Code 128, Code 13, Code 39, Code 93, Coop 2 of 5, EAN13, EAN8, IATA 2 of 5, Interleaved 2 of 5, Matrix 2 of 5, MSI, Pharmacode, Plessey, Standard 2 of 5, Telepen, UPC A, UPC E. - Postal barcodes: Australia Post, PLANET, PostNet, RM4SCC (i.e., UK Royal Mail). - Two dimensional barcodes: Aztec, Aztec Runes, Code 16K, PDF 417. Maxicode and DataMatrix coming soon! - Dynamic barcode image generation. - Error correction support. - Printing support. - Full source code written in C# available. Tag: Displaying Help file using C# Tag: 77882

Hi,

I have an application with accompanying help file. There is a help menu
which allows direct access to the Contents, Index and Search pages of the
help file.
Until recently I've had to use the P/Invoke services to run the 'hh.exe'
program as a process because of a bug in .Net's wrapper for help :-
System.Windows.Forms.Help. This problem seems to have been fixed but I've
noticed that I now get a message box (with no title) appearing after a couple
of help invocations which tells me that there is no memory available to
complete the request, after OK'ing this message the application is forced to
close.

Has anyone else had similar problems using the help wrapper in C#?

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