Help - Sudden crashes while editing DataGridView properties!

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  - 1
    - Drawing tabs in ListBox.DrawItem event I have a ListBox, and have changed the DrawMode to DrawMode.OwnerDrawFixed. I'm using the ListBox.DrawItem event to do some custom coloring in my ListBox object. My item strings contain tabs, but after drawing the items myself, the tabs are not intepreted. Currently I'm just using the sample code given in the MSDN docs for the event handler: ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------- private void listBox1_DrawItem(object sender, System.Windows.Forms.DrawItemEventArgs e) { // Set the DrawMode property to draw fixed sized items. listBox1.DrawMode = DrawMode.OwnerDrawFixed; // Draw the background of the ListBox control for each item. e.DrawBackground(); // Define the default color of the brush as black. Brush myBrush = Brushes.Black; int mod = e.Index % 3; // Determine the color of the brush to draw each item based on the index of the item to draw. switch (mod) { case 0: myBrush = Brushes.Red; break; case 1: myBrush = Brushes.Orange; break; case 2: myBrush = Brushes.Purple; break; } // Draw the current item text based on the current Font and the custom brush settings. e.Graphics.DrawString(listBox1.Items[e.Index].ToString(), e.Font, myBrush,e.Bounds,StringFormat.GenericDefault); // If the ListBox has focus, draw a focus rectangle around the selected item. e.DrawFocusRectangle(); } ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------- As I mentioned, my items contain tabs, and when I intercept this event, my strings look like this: "Name\taddress\tetc..." Also, in case it matters, I'm setting my own tab stops in the list box: ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------- private void SetDeviceListTabStops() { // A tab-stop location of 4 equates to the width of one average character for the specified font int[] listBoxTabs = new int[] { 20, 75, 110, 160 }; // Send an LB_SETTABSTOPS message to the ListBox control. int result = SendMessage(this.listBox1.Handle.ToInt32(), LB_SETTABSTOPS, listBoxTabs.Length, ref listBoxTabs[0]); // Refresh the List Box control. this.listBox1.Refresh(); } ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Anyone know what I need to set in order for the tabs to be drawn/interpretted? Tag: Help - Sudden crashes while editing DataGridView properties! Tag: 113785
  - 2
    - Problem rendering metafile text on bitmap. Hi, I have a problem with the quality from metafiles rendered on a System.Drawing.Bitmap. In particular, text is drawn poorly. If the same metafile is rendered directly onto a form's drawing surface, the quality is fine. There's also a problem with scaling, with a difference in size between the bitmap and directly drawn versions. The code below illustrates the problem. It draws a string three times. The top one is the string drawn directly on the form. The middle one is from a metafile (with the string drawn onto it) drawn directly onto the form. The bottom one is from the same metafile, rendered onto a bitmap, which is then drawn onto the form. Top two look fine, bottom one not so good. Any ideas what I'm doing wrong? Thanks, Chris. Bitmap bitmap; Metafile metafile; private void button1_Click(object sender, EventArgs e) { using (Graphics formGraphics = CreateGraphics()) { IntPtr handle = formGraphics.GetHdc(); metafile = new Metafile(handle, EmfType.EmfOnly); formGraphics.ReleaseHdc(); using (Graphics metaGraphics = Graphics.FromImage(metafile)) { metaGraphics.DrawString("Test string", new Font("Arial", 14), Brushes.Black, new PointF(0, 0)); } bitmap = new Bitmap(400, 100); bitmap.SetResolution(formGraphics.DpiX, formGraphics.DpiY); using (Graphics bitmapGraphics = Graphics.FromImage(bitmap)) { bitmapGraphics.DrawImage(metafile, new Point(0, 0)); } formGraphics.DrawString("Test string", new Font("Arial", 14), Brushes.Black, new PointF(0, 0)); formGraphics.DrawImage(metafile, new Point(0, 50)); formGraphics.DrawImage(bitmap, new Point(0, 100)); } } Tag: Help - Sudden crashes while editing DataGridView properties! Tag: 113784
  - 3
    - What are my options for implementing a horizontal drag/drop contro I have an interesting problem. I have a set of records in a data table organized by a simple key. What I want to do is represent these records as icons on a horizontally oriented control in asending order. Furthermore, I want to be able to use this display to reorganize the order of the records in the data table. i.e. If the control is displaying item1, item2, item3, I want to be able to select item2 and drag it to the left so that the new order in the data table is item2, item1, item3. Also I want the control to have horizontal scrolling capability because there will almost certainly be more than a few of these items. I have some old code that I might be able to adapt but I'd like to see other options. Any ideas? Tag: Help - Sudden crashes while editing DataGridView properties! Tag: 113774
  - 4
    - Missing Record in Crystal Report I have a Crystal Report, which DataSource is made up of 2 tables, 1 Header table and 1 Detail table. The Detail table contains extra details of the items in the Header table. Not all Header items has a record in the Detail table. As for my Crystal Report, I'm grouping the records by the Header table's primary key (which is linked to the Detail table). I discovered that for those items that does not have a record in the Detail table, it wont show up in my Crystal Report. What should I do to let those record appear? Tag: Help - Sudden crashes while editing DataGridView properties! Tag: 113767
  - 5
    - Binding DateTimePicker question Hello, I thought that my DateTimePicker was bound to my binding source in my entry form, but it does not behave as though it were. Here is the AutoGenerated code for that control: // modifiedDateDateTimePicker // this.modifiedDateDateTimePicker.DataBindings.Add(new System.Windows.Forms.Binding("Value", this.bsMTask, "ModifiedDate", true)); this.modifiedDateDateTimePicker.Enabled = false; this.modifiedDateDateTimePicker.Location = new System.Drawing.Point(129, 366); this.modifiedDateDateTimePicker.Name = "modifiedDateDateTimePicker"; this.modifiedDateDateTimePicker.Size = new System.Drawing.Size(200, 20); this.modifiedDateDateTimePicker.TabIndex = 25; Here is exception text that is returned when I get the error: "Column 'ModfiedDate' does not allow nulls." ************** Exception Text ************** System.Data.NoNullAllowedException: Column 'ModifiedDate' does not allow nulls. at System.Data.DataColumn.CheckNullable(DataRow row) at System.Data.DataTable.RaiseRowChanging(DataRowChangeEventArgs args, DataRow eRow, DataRowAction eAction, Boolean fireEvent) at System.Data.DataTable.SetNewRecordWorker(DataRow row, Int32 proposedRecord, DataRowAction action, Boolean isInMerge, Int32 position, Boolean fireEvent, Exception& deferredException) at System.Data.DataTable.InsertRow(DataRow row, Int32 proposedID, Int32 pos, Boolean fireEvent) at System.Data.DataView.FinishAddNew(Int32 currentIndex, Boolean success) at System.Data.DataRowView.EndEdit() at System.Windows.Forms.CurrencyManager.EndCurrentEdit() at System.Windows.Forms.BindingSource.EndEdit() at HIP2007.AddEditMasterTask.btnSave_Click(Object sender, EventArgs e) in M:\HIP2007\HIP2007\Dialogs _ CurrentWork\AddEditMasterTask.cs:line 92 at System.EventHandler.Invoke(Object sender, EventArgs e) at System.Windows.Forms.Control.OnClick(EventArgs e) at System.Windows.Forms.Button.OnClick(EventArgs e) at System.Windows.Forms.Button.OnMouseUp(MouseEventArgs mevent) at System.Windows.Forms.Control.WmMouseUp(Message& m, MouseButtons button, Int32 clicks) at System.Windows.Forms.Control.WndProc(Message& m) at System.Windows.Forms.ButtonBase.WndProc(Message& m) at System.Windows.Forms.Button.WndProc(Message& m) at System.Windows.Forms.Control.ControlNativeWindow.OnMessage(Message& m) at System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message& m) at System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam) I thought that the default value of the DateTimePicker was the value that is displayed in the control - the current datetime. BTW I have disabled this control from user interaction so that it will behave as read only. What do I do so that today's datetime is by default put into the control so I do not receive this error? Thank you. Doug Tag: Help - Sudden crashes while editing DataGridView properties! Tag: 113766
  - 6
    - Catching mouse events on all child controls Greetings, I've already tried googling for the following problem, but it seems every solution I've found is too complex and error prone. I've got a control (Panel) that acts as a container for several other controls. These controls, in turn, have several other controls and so on. I wish to be notified whenever the mouse is hover the area defined by the container control, regardless of its children. OnMouseEnter and OnMouseLeave triggers as soon as the mouse enters/leaves a child control, so I can't use them. Same applies for OnGotFocus/OnLostFocus. One solution would be to hook upon all events in every child control. Despite the resulting complexity of event triggering (and the fact that some controls can simply override the events I'm listening for and inhibit them), the controls I'm using can (and will) change in run- time (we are talking about adaptative interfaces here); this would probably mean that I also need to hook upon the ControlAdded and ControlRemoved events. So my question is simple: is there any "clean" way for a control to know that a mouse is in its area (ClientRectangle)? I don't mind if the solution involves WndProc... Best regards and thanks in advance, Hugo Ferreira Tag: Help - Sudden crashes while editing DataGridView properties! Tag: 113765
  - 7
    - Very weird RichTextBox bug I have tried to make a simple sample of this - but the simple samples all work. The basic problem is I create a RichTextBox and then call RichTextBox.LoadFile() to load a rtf file in it. If the file has an image in it - the control displays nothing and RichTextBox.Text returns "". If I do the same thing in my simple sample program, it all works fine. Where it does not work I have a Word AddIn (IDTExtensibility2, not VSTO) that uses DevExpress for it's ribbon forms, etc. In it to display the rtf file I bring up a Form that has a RichTextBox in it and call LoadFile(). And if the rtf has an image in it I get a blank control. To try and recreate it I just did a plain old Windows form - no DevExpress and no Word AddIn. But that works fine. Has anyone ever heard of anything like this? -- thanks - dave david_at_windward_dot_net http://www.windwardreports.com Cubicle Wars - http://www.windwardreports.com/film.htm Tag: Help - Sudden crashes while editing DataGridView properties! Tag: 113761
  - 8
    - Set the row background color according to a cell value Hi, At this time I'm able to set the background color of a cell depending on it's value. I'm able to achieve this by extending the DataGridTextBoxColumn class and overriding the Paint method: [code] protected override void Paint(System.Drawing.Graphics g, System.Drawing.Rectangle bounds, CurrencyManager source, int rowNum, System.Drawing.Brush backBrush, System.Drawing.Brush foreBrush, bool alignToRight) { if (internalHighlightInformation != null) { object objAtRow = GetColumnValueAtRow(source, rowNum); //(Values A, C and X are just an example, this values are set at run-time) if (objAtRow = "B" || objAtRow = "C" || objAtRow = "X") { backBrush = new SolidBrush(Color.Red); foreBrush = new SolidBrush(Color.White); } } base.Paint(g, bounds, source, rowNum, backBrush, foreBrush, alignToRight); } [/code] My problem now is, how can I do this to the full row? At this stage I know the row number, and the cell, but I don't have any access to the cells that exist in the same row :( (or do I?) Any ideas? I just cannot figure out how to do this... Thanks ahead for all the help. Best Regards, L. Pinho Tag: Help - Sudden crashes while editing DataGridView properties! Tag: 113757
  - 9
    - Beginners question - DataGridView with a combo box column I have not tried this before. I have a fairly simple table bound to the grid itself and I want to make one of the columns a combo box. To this end I bound the grid to the first table and the column to a second. No matter what I try, I keep getting 'DataGridViewComboBoxCell value is not valid.' How does one normally set up an arrangement like this and how do I begin troubleshooting this? Tag: Help - Sudden crashes while editing DataGridView properties! Tag: 113756
  - 10
    - I need to be able to trap when the user clicks on a Web Browser control. So the .NET 2.0 web browser control does not provide a MouseDown or Click event handler, but I have a need to trap on this. I would like to know the best approach to accomplish this. I see Enter and Leave event handlers on the control and I have tried to trap on these and then check the MouseDown event on the parent, but this doesn't seem to work. Is there an approach I can use with API calls. I don't require an 100% managed solution. Thanks. Tag: Help - Sudden crashes while editing DataGridView properties! Tag: 113754
  - 11
    - ListView - one column Hi everybody, I want to have a ListView which has only one column and all the items have the width of the listview (that is, no room fro subitems since i don't need them). It may sound like a ListBox, but I need to have ListViewItems and not objects in the control. Thanks in advance, -- Mihai TÄ?tÄ?ran H.P.C. Consulting www.hpc-consulting.ro Tag: Help - Sudden crashes while editing DataGridView properties! Tag: 113752
  - 12
    - Component Designer A great problem on VS2005. After I dropped an object on the design area of a component, it does not maintain the position assigned. All objects, after closing and reopening the designer, move on the left of the area. It's hard to work in this situation. VS2005 SP1 resolves the situation? Please, help me!! Loris Tag: Help - Sudden crashes while editing DataGridView properties! Tag: 113746
  - 13
    - Component Designer A great problem on VS2005. After I dropped an object on the designer area, it does not maintain the position assigned. All objects, after closing and reopening the designer, move on the left of the area. It's hard to work in this situation. VS2005 SP1 resolves the problem? Help me please! Loris Tag: Help - Sudden crashes while editing DataGridView properties! Tag: 113744
  - 14
    - Exceptons when debugging My VB 2005 winforms application has an Application.ThreadException handler to catch any unhandled exception. When debugging, the debugger doesn't stop when I get an exception, control passes to my application exception handler. Currently I comment out the handler to be able to get the debugger to stop when an unhandled exception occurs. Ideally I would like to have the debugger stop when any exception occurs, then optionally be able to proceed by having the exception bubble up. Is this possible? Tag: Help - Sudden crashes while editing DataGridView properties! Tag: 113741
  - 15
    - PictureBox.Load and animated GIFs Loading an animated GIF using PictureBox.Load causes an ObjectDisposedException with the message "Cannot access a closed file" to be thrown in the FileStream.Read method ultimately called by ImageAnimator.UpdateFrames. Looking at the output from ILDASM, it seems that the underlying file stream is being disposed in the PictureBox.Load method. However, KB article 814675 states that the stream must not be destroyed for the lifetime of the image. Can anyone shed some light on whether the .NET framework really is closing the stream before the image is finished with. Thanks Tag: Help - Sudden crashes while editing DataGridView properties! Tag: 113739
  - 16
    - ClickOnce xamlparse error Hi I was trying to use ClickOnce in VS2008 beta2 for my WPF application but got error after I ran the setup.exe. Error signature: ... P9: system.windows.markup.xamlparse Any thoughts? -- Leon Tag: Help - Sudden crashes while editing DataGridView properties! Tag: 113738
  - 17
    - Autocomplete textbox with dynamic datasource I know how to use autocomplete with 2.0 framework on a textbox. I also know how to use COM interop to use the IAutoComplete interface directly. But with either approach I seem unable to change the list while the user is typing. I have an XML document and i want the user to be able to navigate to nodes by typing in an XPath. i.e. when the user types /A it pops up with /Animals /Applications and when they type /Animals/ it pops up with: /Animals/Dog /Animals/Cat I do NOT want to prepopulate the whole list. However when using the .NET framework and changing the list I get an 'Access Violation' exception which is unacceptable. I tried to use the AutoComplete COM control (IAutoComplete) based upon this blog entry : http://jiangsheng.spaces.live.com/blog/cns!1BE894DEAF296E0A!732.entry Unfortunately the control doesn't 'ask' for an updated list of items as I type. I've tried all kinds of nasty tricks, like faking an 'Escape' key press but none are acceptable because of unwanted sideeffects. I essentially want the same behavior you get with the windows filename autocompletion, but I dont see how I can achieve this. I might just have to make my own autocomplete dropdown,but woudl rather not have to do that. Any suggestions? -andy Tag: Help - Sudden crashes while editing DataGridView properties! Tag: 113730
  - 18
    - WebBrowser (loop automation) Hello, Background information â?¦. I have a VS2005 C# Windows forms app which has several text fields, one button control and one webbrowser control that I use to display an external webpage and based on the input data provided by the user, I perform some tasks on the webpage. The idea is to go automatically go through several web pages based in data captured by the user until I reach to a desired webpage. All this works fine, The user fills the data on the windows form, then clicks on the form's button and the process starts. The click method of this button does something like like â?¦ private void btnSendData_Click(object sender, EventArgs e) { Uri myUri = new Uri (http://www.externalwebsite/page1.htm); this.myWebBrowser.Url = myUri; this.stageSecuence = 1; } I use a variable named "stageSecuence" in the next method to perform some automated tasks depending on the webpage that is being processed. Then for the webbrowser control I have the following method: private void myWebBrowser_DocumentCompleted(object sender, WebBrowserDocumentCompletedEventArgs e) { switch (this.stageSecuence) { case 1: // perform some tasks like invoking the submit on the web page this.stageSecuence++; case 2: // perform some other tasks this.stageSecuence++; // and so on } Current situation, Now, instead of executing this automation on the webpage based on the data manually typed by the user; I want to call this process several times based on some database information. I wrote the following code to perfom a loop (hoping to call sereval times the automation process) for (int i = 0; i < this.numberOfTableRecords; i++) { // get record info Uri myUri = new Uri (http://www.externalwebsite/page1.htm); this.myWebBrowser.Url = myUri; this.stageSecuence = 1; } By doing this I only get the myWebBrowser_DocumentCompleted method executed only once for the last record of the loop; in fact this method is executed once the loop has finished. How can I get the DocumentCompleted method executed once for every record in the loop ? Can I call this method manually such as: this.myWebBrowser_DocumentCompleted( â?¦ ) ?? Thanks in advance, Cesar Tag: Help - Sudden crashes while editing DataGridView properties! Tag: 113727
  - 19
    - Word 2007 symbols problem I recently got word 2007 on my windows vista computor and no matter what I do when i push the slash/question mark it puts a french e in it's place. Tag: Help - Sudden crashes while editing DataGridView properties! Tag: 113726
  - 20
    - Layout MDI problems with more than 3 windows Hello, When i use LayoutMdi with TileHorizontal or TileVertical and more than 3 windows the result is not the expected one and is the same. When i TileVertical 4 windows i want them === =1= === =2= === =3= === =4= === (like ALL windows application does) but i got them : ====== =1==2= ====== =3==4= ====== If TileHorizontal : the result is the same. Example VB Code : You open a new windows application and paste this in Form1.vb Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load If Me.MdiParent Is Nothing Then Me.IsMdiContainer = True For i As Integer = 1 To 4 Dim f As Form1 = New Form1 f.MdiParent = Me f.Show() Next i Me.LayoutMdi(MdiLayout.TileVertical) End If End Sub Thanks, Olivier Tag: Help - Sudden crashes while editing DataGridView properties! Tag: 113722
  - 21
    - Non-English Warnings When I use OpenFileDialog.ShowDialog(), the dialog is in Dutch (which is fine for the moment). It says 'Bestandsnaam' for Filename, 'Bestandstypen' for File Types etc. But when I select a non-existing file, the warning is in English. How can I change the warnings to Dutch (or to any other language)? Tag: Help - Sudden crashes while editing DataGridView properties! Tag: 113720
  - 22
    - Inconsistent image behavior in a Winforms app. I'm writing a Winforms app in Dot Net 2.0. I created a few PNG images for use as button images in order to liven up appearances a bit. I thought I had given the images a transparent background using Paint.Net and they display correctly on my own computer (a lenovo T60p laptop). However when the app is run on another computer (A Dell desktop with a flat monitor, if I remember correctly) the images have a white background. (The actual button background color is the system default grey. I have not changed that.) Am I forgetting some setting? Tag: Help - Sudden crashes while editing DataGridView properties! Tag: 113719
  - 23
    - Delete key in DataGridViewComboBoxCell I have a DataGridViewComboBoxCell in a DataGridView. When it is selected and the user presses Delete key it is reseted to default value (or first value in ComboBox). How can I override this default behavior and delete entire row instead? Thanks, Peter Tag: Help - Sudden crashes while editing DataGridView properties! Tag: 113716
  - 24
    - Capturing Shift+Return when AcceptButton is used Hi, I've got a search form with the search button used as AcceptButton for the form and everything works as expected. However, I want to be able to capture not only Return, but also Shift+Return in which case I want to change some settings and then perform the search as normal. As I understand it, when an AcceptButton is used the form's KeyDown event handler doesn't receive the Return key event even with KeyPreview on. If I remove the AcceptButton the Return key event gets through as expected. Is there a good way to find out whether Shift is currently pressed form within the accept button's Click event handler? Is there a way to display the search button with "AcceptButton style" without it actually being accept button? Any thoughts would be appreciated! Regards Henrik Jernevad Tag: Help - Sudden crashes while editing DataGridView properties! Tag: 113714
  - 25
    - .net controls advice Hi I am contemplating purchasing either Infragistics or DV Express .net controls. I need advise on which one is better if any. I need the usual controls that both offer i.e. grid, tab, explorer bars etc. Many Thanks Regards Tag: Help - Sudden crashes while editing DataGridView properties! Tag: 113711
- Next
  - 1
    - Disable Close button and remove Close menu and then reactivate In Vs2005 i need to disable the Close button and remove Close Menu and then reactivate them. I have found how to disable Close button and remove close menu, but i haven't found how to reactivate them. Does someone knows how to reactivate them? This is how i disable close button and remove close menu: ---- <DllImport("user32.dll")> Private Shared Function GetSystemMenu(ByVal hWnd As IntPtr, ByVal wMsg As Boolean) As IntPtr End Function <DllImport("user32.dll")> Private Shared Function RemoveMenu(ByVal hWnd As IntPtr, ByVal uPosition As Int32, ByVal uFlags As Int32) As Boolean End Function <DllImport("user32.dll")> Private Shared Function SendMessage(ByVal hWnd As IntPtr, ByVal wMsg As Int32, ByVal wParam As Int32, ByVal lParam As Int32) As Int32 End Function Private Const SC_CLOSE As Int32 = &HF060 Private Const MF_BYCOMMAND As Int32 = 0 Private Const WM_NCACTIVATE As Int32 = &H86 Private Sub DeactivateCloseButtonAndMenu() Dim hMenu As IntPtr hMenu = GetSystemMenu(Me.Handle, False) RemoveMenu(hMenu, SC_CLOSE, MF_BYCOMMAND) SendMessage(Me.Handle, WM_NCACTIVATE, 0, 0) SendMessage(Me.Handle, WM_NCACTIVATE, 1, 0) End Sub ---- Thanks. Tag: Help - Sudden crashes while editing DataGridView properties! Tag: 113710
  - 2
    - Lost Main Id Emails after HP system restore Hi Last night did a full system restore using HP F11 function on boot up. Now i have lost all my Parteners old emailsand she was the main Account in OutLook Exspress 6. I can find my emails just not sign of hers at all any where. Please Help she is not best pleased. Im running XP home SP2. Thanks for Reading Tom Tag: Help - Sudden crashes while editing DataGridView properties! Tag: 113709
  - 3
    - clickonce applications on linux with mono project? Hi, I want to known if I can run clickonce applications on linux or Mac. Specially I want to run Report Builder. From what I see the .application is not loaded from the web site. so I manually copy the reportbuilder folder and try to run it, but nothing appears. so... any guide? do you know if its possible? thanks. Jerome. Tag: Help - Sudden crashes while editing DataGridView properties! Tag: 113708
  - 4
    - printing source code from vs 2005 solution is there a utility program, other than 'VS.Net Code Print', that can print source code from a visual studio 2005 solution? 'VS.Net Code Print' is buggy and crashes before completing the print of my solution. Thanks!!! Tag: Help - Sudden crashes while editing DataGridView properties! Tag: 113707
  - 5
    - Grid view readonly property I am having problem with the fallowing piece of code foreach (DataGridViewRow Rows in prePDDataGridView.Rows) { Rows.DefaultCellStyle = null; Rows.ReadOnly = true; DataGridViewDisableButtonCell buttonCellSave = (DataGridViewDisableButtonCell)Rows.Cells["Save"]; buttonCellSave.Enabled = false; } The above code will make all the rows in data grid view as readonly and the button cell to disable. The above code works properly when i made the form as non MDI child. But it does not work if i made the form as MDI Child. I dont know what is the reason. Any solution for this ? Tag: Help - Sudden crashes while editing DataGridView properties! Tag: 113703
  - 6
    - Threading question Let's say I have an event handler that spawns another thread In that original event handler, is there a way to check, and do something ONLY after the thread is complete? Tag: Help - Sudden crashes while editing DataGridView properties! Tag: 113696
  - 7
    - A treeView node with multiple columns? Hello, friends, I need to have multiple columns in a TreeView node. How can I do this? Thanks a lot. Tag: Help - Sudden crashes while editing DataGridView properties! Tag: 113695
  - 8
    - printing source code is there a utility program, other than 'VS.Net Code Print', that can print source code from a visual studio 2005 solution? 'VS.Net Code Print' is buggy and crashes before completing the print of my solution. Thanks!!! Tag: Help - Sudden crashes while editing DataGridView properties! Tag: 113690
  - 9
    - binding CheckBox.Enabled to ComboBox selection I have a combo which is bound to a List<MyCustomObject>. One of the properties of MyCustomObject is a boolean which I would like to bind to a checkbox so that depending on the selection on the combobox, the checkbox below it would get enabled/disabled accordingly. How can this be achieved through databinding? I don't want to implement this through any event handling - just pure databinding. My initial effort was this: checkbox.DataBindings.Add("Enabled", combobox, "SelectedItem.MyBooleanProperty"); However, the above code does not work. Thanks Tag: Help - Sudden crashes while editing DataGridView properties! Tag: 113688
  - 10
    - RTF Parsing super/subscript I'm looking for some sample code to implement super and subscript in an RTF control w/o using the baseline offset and font size division/multiplication. I want to actually use the \super and \sub tags from the RTF spec. Even some open source RTF editor would be fine. Java or C++ source would even be acceptable. Thanks Brian Tag: Help - Sudden crashes while editing DataGridView properties! Tag: 113685
  - 11
    - Where is the application setting file? Hello, friends, As you know, we use application settings to store and retrieve property settings (such as window form size/location) for our application for each user. But, I could not find the file that stores all these info after running our app. (I think it should be under C:\Documents and Settings, but just could not find). Any ideas? Thanks a lot. Tag: Help - Sudden crashes while editing DataGridView properties! Tag: 113672
  - 12
    - Class Finalize - how to kill a class Let's say I have a class - so to instanciate it, I put : dim cWhatever as New myClass My question is, do I need something to remove it from memory, once the form's closed? What are the recommended ways of doing this (in the class itself/in the form disposed event, or where/how)? Tag: Help - Sudden crashes while editing DataGridView properties! Tag: 113671
  - 13
    - Spurious internet activity in simple forms application My vs2005 windows forms program is trying to access the internet at runtime. There is no network access in my code. Could it be due to the framework or the infragistics controls? I know that at build time the framework's license compiler tries to use dns or other internet access. Could this be happening at runtime also? Tag: Help - Sudden crashes while editing DataGridView properties! Tag: 113667
  - 14
    - Question about DataGridView binding I have not used the DataGridView that much. I'm writing a Winforms app using a datagridview bound to a datatable. For reasons too involved to go into, the grid is not editable. When I need to edit a record, I double-click on a row and retrieve the keys as follows: key = <grid name>.CurrentRow.Cells("Column Name").Value.ToString Then do a find on the datatable and get the datarow. datarow = datatable.Find(key) Is this the simplest way to relate the datagridview and the datasource or is there something simpler? Tag: Help - Sudden crashes while editing DataGridView properties! Tag: 113665
  - 15
    - Array initialization in class Hi all, I have an array defined in a class. The type of the array is the class type. For example: class MyClass { private int a; private int b; private MyClass[] Array; public MyClass() { a = 5; b = 2; Array = new MyClass[3]; } public void SetArrayFields() { Array[0].a = 1; Array[0].b = 8; } } What happens is that whenever I enter SetArrayFields() and try to set values to the array there is an error "System.NullReferenceException" Please help me to solve this problem Many thanks Tag: Help - Sudden crashes while editing DataGridView properties! Tag: 113664
  - 16
    - Add question mark to title bar Hi guys, I'm working with a small Win App (.NET 2.0, C#) and I was wondering: Is there a way to add the typical question mark to the title bar of my app, and then link that question mark to an "About" box? (no help) I've been "googling" it but didn't find the solution... Thanks a lot. -- ____________________________ Carlos Sosa Albert Tag: Help - Sudden crashes while editing DataGridView properties! Tag: 113662
  - 17
    - create nice interface with WPF Hi people, i would like try the new capability of WPF included in VisualStudio 2008 to create Nice (3D effect & more) but i dont know where to begin ? di you have any link how teach the begining to use WPF in VisualStudio 2008 With VB language... Thx a lot BTW, all WPF applications are in XAML format ? (sorry i dont know if i have posted i the right section) Tag: Help - Sudden crashes while editing DataGridView properties! Tag: 113660
  - 18
    - Blue Screen Many of our users are getting the blue screen problem. The file psg.sys is being blamed for these crashes. No one has been able to find a psg.sys file on their system when a search is done. Anyone have any idea what is going on with these Win XP Pro systems? Thanks. mfeiner@csc.com Tag: Help - Sudden crashes while editing DataGridView properties! Tag: 113659
  - 19
    - crystal report with image Hi, I am trying to develop a crystal report (invoice) and i need to show picture of the item in detail section. I do not see how can i do that.... I have picture of the item ordered in the file (on the machine i show report). The name is ItemId.jpg where ItemId comes from database OrderDetail table. Thanks George. Tag: Help - Sudden crashes while editing DataGridView properties! Tag: 113656
  - 20
    - ERROR inrelease Hi, I've deployed a small application, by my opinion well tested, runs perfect on mu development (Vista) and test machine (XP) but when installed at the customers site, displayed an unhandeled exeption when loading the first form. PLease HELP!! thx System.InvalidOperationException: An error occurred creating the form. See Exception.InnerException for details. The error is: Input string was not in a correct format. ---> System.FormatException: Input string was not in a correct format. at System.Number.StringToNumber(String str, NumberStyles options, NumberBuffer& number, NumberFormatInfo info, Boolean parseDecimal) at System.Number.ParseDecimal(String value, NumberStyles options, NumberFormatInfo numfmt) at System.Decimal.Parse(String s, IFormatProvider provider) at System.Convert.ToDecimal(String value) at NumericBox.NumericBox.set_Text(String value) at SolutionAdmin.frmOnderdelen.InitializeComponent() at SolutionAdmin.frmOnderdelen..ctor() --- End of inner exception stack trace --- at SolutionAdmin.My.MyProject.MyForms.Create__Instance__[T](T Instance) at SolutionAdmin.frmMaster.ProductsToolStripMenuItem_Click(Object sender, EventArgs e) at System.Windows.Forms.ToolStripItem.RaiseEvent(Object key, EventArgs e) at System.Windows.Forms.ToolStripMenuItem.OnClick(EventArgs e) at System.Windows.Forms.ToolStripItem.HandleClick(EventArgs e) at System.Windows.Forms.ToolStripItem.HandleMouseUp(MouseEventArgs e) at System.Windows.Forms.ToolStripItem.FireEventInteractive(EventArgs e, ToolStripItemEventType met) at System.Windows.Forms.ToolStripItem.FireEvent(EventArgs e, ToolStripItemEventType met) at System.Windows.Forms.ToolStrip.OnMouseUp(MouseEventArgs mea) at System.Windows.Forms.ToolStripDropDown.OnMouseUp(MouseEventArgs mea) at System.Windows.Forms.Control.WmMouseUp(Message& m, MouseButtons button, Int32 clicks) at System.Windows.Forms.Control.WndProc(Message& m) at System.Windows.Forms.ScrollableControl.WndProc(Message& m) at System.Windows.Forms.ToolStrip.WndProc(Message& m) at System.Windows.Forms.ToolStripDropDown.WndProc(Message& m) at System.Windows.Forms.Control.ControlNativeWindow.OnMessage(Message& m) at System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message& m) at System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam) -- Best regards Luc Tag: Help - Sudden crashes while editing DataGridView properties! Tag: 113654
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    - When is a form disposed? (unexpected ObjectDisposedException errors) I have a multithreaded app that creates a progress form on the main thread and interacts with it from a worker thread. The code is more or less like this: void MainThread() { MyForm form = new MyForm(); ThreadPool.QueueUserWorkItem(WorkerThread, form); form.ShowDialog(); } void WorkerThread(object state) { using (MyForm form = state) { // do some work... } } So, the form can be closed manually by clicking a button on it (which sets DialogResult), or automatically when the worker thread is done and the "using" block terminates. I have written a thread-safe Dispose method, since it's called from a thread other than the one that created the form, and it looks more or less like this: delegate void DisposeDelegate(); void Dispose() { if (InvokeRequired) Invoke(new DisposeDelegate(Dispose), new object[] {}); else base.Dispose(); } My understanding is that ShowDialog() doesn't dispose the form when it returns, and indeed, Dispose() is only called once - at the end of the "using" block. The problem is that occasionally, Invoke() will fail with an ObjectDisposedException, even though it's the first time Dispose() has been called! I tried tracing through the framework with ILDASM to find the source of that exception, but with no luck. How exactly does the form know whether it's been disposed already, and under what circumstances is that flag set? Jesse Tag: Help - Sudden crashes while editing DataGridView properties! Tag: 113652
  - 22
    - Help, App hanging after screen saver I have an VS 2005 C# app that hangs after the screen saver activates. The debugger shows the following stack when this happens. Does anyone know what the app is waiting for? STACK: [In a sleep, wait, or join] mscorlib.dll!System.Threading.WaitHandle.WaitOne(long timeout, bool exitContext) + 0x2e bytes mscorlib.dll!System.Threading.WaitHandle.WaitOne(int millisecondsTimeout, bool exitContext) + 0x23 bytes System.Windows.Forms.dll!System.Windows.Forms.Control.WaitForWaitHandle(System.Threading.WaitHandle waitHandle = {System.Threading.ManualResetEvent}) + 0xa1 bytes System.Windows.Forms.dll!System.Windows.Forms.Control.MarshaledInvoke(System.Windows.Forms.Control caller, System.Delegate method, object[] args, bool synchronous) + 0x36d bytes System.Windows.Forms.dll!System.Windows.Forms.Control.Invoke(System.Delegate method, object[] args) + 0x48 bytes System.Windows.Forms.dll!System.Windows.Forms.WindowsFormsSynchronizationContext.Send(System.Threading.SendOrPostCallback d, object state) + 0x61 bytes System.dll!Microsoft.Win32.SystemEvents.SystemEventInvokeInfo.Invoke(bool checkFinalization = true, object[] args = {Dimensions:[0x00000002]}) + 0x68 bytes System.dll!Microsoft.Win32.SystemEvents.RaiseEvent(bool checkFinalization = true, object key = {object}, object[] args = {Dimensions:[0x00000002]}) + 0x106 bytes System.dll!Microsoft.Win32.SystemEvents.OnUserPreferenceChanging(int msg, System.IntPtr wParam, System.IntPtr lParam) + 0x6f bytes System.dll!Microsoft.Win32.SystemEvents.WindowProc(System.IntPtr hWnd = 0x001e10a4, int msg = 0x0000201a, System.IntPtr wParam = 0x00000000, System.IntPtr lParam = 0x066462f0) + 0x288 bytes [Native to Managed Transition] [Managed to Native Transition] System.Windows.Forms.dll!System.Windows.Forms.Application.ComponentManager.System.Windows.Forms.UnsafeNativeMethods.IMsoComponentManager.FPushMessageLoop(int dwComponentID, int reason = 0xffffffff, int pvLoopData = 0x00000000) + 0x2ea bytes System.Windows.Forms.dll!System.Windows.Forms.Application.ThreadContext.RunMessageLoopInner(int reason = 0xffffffff, System.Windows.Forms.ApplicationContext context = {System.Windows.Forms.ApplicationContext}) + 0x17d bytes System.Windows.Forms.dll! System.Windows.Forms.Application.ThreadContext.RunMessageLoop(int reason, System.Windows.Forms.ApplicationContext context) + 0x53 bytes System.Windows.Forms.dll!System.Windows.Forms.Application.Run(System.Windows.Forms.Form mainForm) + 0x2e bytes OmniProWms.exe!OmniPro.Wms.OmniProWms.Main(string[] args = {Dimensions:[0x00000000]}) Line 680 + 0x1a bytes C# Tag: Help - Sudden crashes while editing DataGridView properties! Tag: 113651
  - 23
    - Draw over multiple controls When a user grabs the border of an object to expand the size or move it I would like to draw a rectangle to show the growing size or changing position. The problem is that the MouseDown eevnt is within the active control, while the line I need to be drawing is outside the control. To make things worse the line to be drawn may need to "float" over other controls on the page. If I draw on the canvas of the form the line is behind the visual controls on top. Question: How do I draw OVER the top of multiple controls? Tag: Help - Sudden crashes while editing DataGridView properties! Tag: 113650
  - 24
    - Why is my .exe so large? This is a question. I have developed many vb.net Windows apps. Most apps .exe are under 100kb. The app I am presently writing is now 2400kb. What makes the exe get so large? I am vs2003 and .net framework 1.1. jwc *** Sent via Developersdex http://www.developersdex.com *** Tag: Help - Sudden crashes while editing DataGridView properties! Tag: 113644
  - 25
    - Why is my .exe so large? This is a question. I have developed many vb.net Windows apps. Most apps .exe are under 100kb. The app I am presently writing is now 2400kb. What makes the exe get so large? I am vs2003 and .net framework 1.1. jwc *** Sent via Developersdex http://www.developersdex.com *** Tag: Help - Sudden crashes while editing DataGridView properties! Tag: 113643

I have a fairly large winforms project, VB/Dot Net 2.0. While in the midst
of fairly routine editing I have suddenly found myself unable to click on the
'Choose Data Source' dropdown of DataGridView Tasks without crashing Visual
Studio.

This goes for all DataGridViews within the project and only this one
project. It does not matter if the the DataGridView has been setup already
or if it has just been put on the form. I am able to edit DGVs normally in
other projects. I have also tried rebuilding the solution and even
rebooting. Nothing works.

(One of my co-workers has just suggested that the solution itself is corrupt
and I should try creating an entirely new solution and copying over
individual files. I'll probably do that.)

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