Threading Error

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- Previous
  - 1
    - Docked window Hi, I am new to programming in .NET. I would like to create a window that would dock to one side of the parent window. Much like the property window in Visual Studio .NET. So I thought that I would create a mdi application with a child window performing as the property window. Though I believe this is the wrong way to go about it. Since the child window would not behave as those mentioned. How do I accomplish this using the .NET Framework? Thank you, Ernesto Herrera Tag: Threading Error Tag: 54950
  - 2
    - comboBox TextChanged event fires twice because Items.Insert() fires the event too... Hi, I have a simple windows form, with two ComboBox controls (and several other controls). For both of the comboBox controls, DropDownStyle=DropDown. For some reason that I can't figure out, when the user pastes text into the comboBox, the event fires twice. At first I didn't notice this, but once I added error checking, I started seeing my error twice. Here some example code: private void comboBox_doit_TextChanged(object sender, System.EventArgs e) { ... comboBox_doit.Items.Insert(1,comboBox_doit.Text); ... } Does anyone know how to prevent the second event from firing? I have tried using BeginUpdate() & EndUpdate() around Items.Insert(), I have tried using a simple bool semaphore, I have even tried unregistering the event before calling Items.Insert(), and then adding a new event handler after it... I also can not figure out why this only happens to one of my comboBoxes, and not the other one... Hmmm... Alas, I am stuck... I would be grateful for any comments, suggestions, or advice... Many Thanks, -Rob. Tag: Threading Error Tag: 54942
  - 3
    - Is there a Post Load event? Trying to set selected indeces on bound combo boxes. I've discovered that if you bind a data table to a combo box, and set the selected index to -1 and or the Text to "", it doent work during The Load event. If you do it somewhere later, it does. That brings up the question of is there a post load event in the .NET framework. I looked for one but didnt find it. MFC has something like that, though the name escapes me at the moment, something like PostInit or something. Thanks, Glorfindel Tag: Threading Error Tag: 54941
  - 4
    - Crystal kills .NET app I have an application that uses the Crystal Windows forms viewer to display reports. The reports are populated with data from a strongly-typed dataset. The app runs fine on the development machine, but not on client machines. The form with the report viewer displays properly. Then I click a button to display a report in the viewer. I have figured out that the viewer's ReportSource property is set successfully to point to a valid dataset. But when the viewer starts to render the report, *the application exits.* I have spent hours with Crystal tech support on this, so I thought I'd check here to see if anyone has encountered anything similar. FWIW, there seems to be a low level error occurring of the "object reference not set" type just before the app exits. Also, I am using all the latest merge modules and valid licensing info. Thanks for any help, Matt Gould Tag: Threading Error Tag: 54940
  - 5
    - Please Help: ComboBox is closed on first click in IE hosted control Hello, I have a winforms control hosted in the IE that contains couple of CombBoxes. I have found a strange behavior: when the control is first loaded into IE, then if you first click on the one of the combos it drops down and immediately closes. It behaves normally on second try. If you first click on any other control and after that on the combo then it works as normal. Therefore I think it has something to do with the control gaining focus at the same time but I haven't managed to solve it by selecting it explicitly. Have you experienced similar problem? Does anyone know how to solve this? Thanks for your help and happy weekend, Szymon Kobalczyk Apriso Poland. Tag: Threading Error Tag: 54928
  - 6
    - Please Help: Message Filter on IE hosted control Hi, I write an IE hosted WinForms control. I need to add some global shortcut keys. I found quite easy to do this by implementing an IMessageFilter. Unfortunatelly this seems not working with IE although it does work when the same control is run in standard form. When I debuged it in the IE I see that Load event where I placed Application.AddMessageFilter gets executed. But then the PreviewMessage method is not. First I thought it is a security issue (I think message filtering requires access to unmanaged code) but it runs from a full trusted source. Hence my questions are: * Has anyone experienced such behavior? * Anyone knows how to avoid it? * Does anyone has any alternative solution for global shortcut keys ? Regards, Szymon Kobalczyk Apriso Poland Tag: Threading Error Tag: 54927
  - 7
    - layout for printing I have a report in a reprot viewer this report is in landscape form put when I print it out I prints in portrait. how do i set the layout to landscape so the user does not have to change it to landscape when they hit the print button? darren Tag: Threading Error Tag: 54923
  - 8
    - Exracting images from a WinForm app This is a multi-part message in MIME format. ------=_NextPart_000_0063_01C36891.23241620 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Is there a way to extract the icons/images from a WinForm application? = Anyone know of the copyright info as well? For example, I like the = icons in the WebMatrix application and would like to simply look at them = in more detail... with a graphic application. If it's ok, would like to = use them in some of my apps, but concerned about the copyright side. ------=_NextPart_000_0063_01C36891.23241620 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 6.00.2800.1226" name=3DGENERATOR> <STYLE></STYLE> </HEAD> <BODY bgColor=3D#ffffff> <DIV><FONT color=3D#000080 size=3D2>Is there a way to extract the = icons/images from=20 a WinForm application?  Anyone know of the copyright info as = well? =20 For example, I like the icons in the WebMatrix application and would = like to=20 simply look at them in more detail... with a graphic application.  = If it's=20 ok, would like to use them in some of my apps, but concerned about the = copyright=20 side.</FONT></DIV></BODY></HTML> ------=_NextPart_000_0063_01C36891.23241620-- Tag: Threading Error Tag: 54919
  - 9
    - WebMatrix Source? This is a multi-part message in MIME format. ------=_NextPart_000_0058_01C36890.9D3E9710 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Anyone know of plans to release the source code for WebMatrix? It's a = slick and fast IDE... moreso than SharpDevelop. Since it's a free = project, would make a great case study (similar to TaskVision). -AC ------=_NextPart_000_0058_01C36890.9D3E9710 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 6.00.2800.1226" name=3DGENERATOR> <STYLE></STYLE> </HEAD> <BODY bgColor=3D#ffffff> <DIV><FONT color=3D#000080 size=3D2>Anyone know of plans to release the = source code=20 for WebMatrix?  It's a slick and fast IDE... moreso than=20 SharpDevelop.  Since it's a free project, would make a great case = study=20 (similar to TaskVision).</FONT></DIV> <DIV><FONT color=3D#000080 size=3D2></FONT> </DIV> <DIV><FONT color=3D#000080 size=3D2>-AC</FONT></DIV></BODY></HTML> ------=_NextPart_000_0058_01C36890.9D3E9710-- Tag: Threading Error Tag: 54918
  - 10
    - Chocolate IDE for .NET I am in the procces of creating a screen designing tool for an existing application, this tool will be used by non-technical people. The user needs to be able to add controls to a screen and move them around. Adding controls to a form at runtime and moving/resizing is not a problem, but I am looking for an easy way make the controls look like they do in the IDE, in other words they don't fire the events. short of creating a custom control for each of the controls, that inherits the original control, I cannot find a way to do this. Any help or ideas would be good. Cheers Pete Tag: Threading Error Tag: 54908
  - 11
    - NotifyIcon remains after abnormal termination Hello - the NotifyIcon for my application remains in the system tray if the application is abnormally terminated. Is there anyway I can clean this up - either by the application (NotifyIcon.Dispose() doesn't help) or by another application that could force a repaint/repopulation of the system tray? A litle bit more background. I have written an application which, when run with certain command line arguments, will kill other instances of itself. Unfortunately, it does leave the NotifyIcons visible. Thanks very much for you help Lee Tag: Threading Error Tag: 54903
  - 12
    - Odd behavior with ActiveX control on a Windows Form Hi When putting a VB6 built ActiveX control on a Windows Form you get several troubles concerning focus in that form. First of all the Enter and Leave events for the ActiveX control only fires once. Then if you got a button on the form that lies directly on the Windows Form and presses this, it gets the "Acceptbutton" shade and whenever you press Enter it will be clicked. This is OK, but when you set focus on the ActiveX control again, the "AcceptButton" shade will not disappear. While having focus on the ActiveX control, any subsequent keypresses on the Enter-key will fire the click- event on that button and make the user very confused about what happened. Is there something you could do when writing that VB6 ActiveX control to avoid this behavior, or is this a general bug concerning all ActiveX controls being placed on Windows Forms? Please let me know if you've got the answer! /Patrik Karlsson Tag: Threading Error Tag: 54896
  - 13
    - starting form won't appear I have a simple form called frmTopicFromStart with a sub main in modPrimary. Here is the code for both. In the form I have a tabcontro with 2 tabs and a quit button. But when I start the app a no longer existing form1 appears on the screen with no controls. I checked carefully. The starting entity is submain. form1 no longer exists. I changed the file and form names to TopicFromStart and frmTopicFromStart. What's going on. Module modPrimary Friend gstrConn As String = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=H:\Program Files\Microsoft Office\Office10 \Samples\Northwind.mdb;" Public Sub Main() Application.Run(New frmTopicFromStart) End Sub End Module Public Class frmTopicFromStart Inherits System.Windows.Forms.Form #Region " Windows Form Designer generated code " Public Sub New() MyBase.New() 'This call is required by the Windows Form Designer. InitializeComponent() 'Add any initialization after the InitializeComponent() call 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 Private components As System.ComponentModel.IContainer 'NOTE: The following procedure is required by the Windows Form Designer 'It can be modified using the Windows Form Designer. 'Do not modify it using the code editor. Friend WithEvents btnQuit As System.Windows.Forms.Button Friend WithEvents TabControl1 As System.Windows.Forms.TabControl Friend WithEvents TabPage1 As System.Windows.Forms.TabPage Friend WithEvents TabPage2 As System.Windows.Forms.TabPage <System.Diagnostics.DebuggerStepThrough()> Private Sub InitializeComponent() Me.btnQuit = New System.Windows.Forms.Button Me.TabControl1 = New System.Windows.Forms.TabControl Me.TabPage1 = New System.Windows.Forms.TabPage Me.TabPage2 = New System.Windows.Forms.TabPage Me.TabControl1.SuspendLayout() Me.SuspendLayout() ' 'btnQuit ' Me.btnQuit.Location = New System.Drawing.Point (504, 456) Me.btnQuit.Name = "btnQuit" Me.btnQuit.Size = New System.Drawing.Size(80, 40) Me.btnQuit.TabIndex = 1 Me.btnQuit.Text = "&Quit" ' 'TabControl1 ' Me.TabControl1.Controls.Add(Me.TabPage1) Me.TabControl1.Controls.Add(Me.TabPage2) Me.TabControl1.Location = New System.Drawing.Point (168, 48) Me.TabControl1.Name = "TabControl1" Me.TabControl1.SelectedIndex = 0 Me.TabControl1.Size = New System.Drawing.Size (432, 344) Me.TabControl1.TabIndex = 2 ' 'TabPage1 ' Me.TabPage1.Location = New System.Drawing.Point (4, 22) Me.TabPage1.Name = "TabPage1" Me.TabPage1.Size = New System.Drawing.Size(424, 318) Me.TabPage1.TabIndex = 0 Me.TabPage1.Text = "General" ' 'TabPage2 ' Me.TabPage2.Location = New System.Drawing.Point (4, 22) Me.TabPage2.Name = "TabPage2" Me.TabPage2.Size = New System.Drawing.Size(424, 318) Me.TabPage2.TabIndex = 1 Me.TabPage2.Text = "TabPage2" ' 'frmTopicFromStart ' Me.AutoScaleBaseSize = New System.Drawing.Size(5, 13) Me.ClientSize = New System.Drawing.Size(648, 518) Me.Controls.Add(Me.TabControl1) Me.Controls.Add(Me.btnQuit) Me.Name = "frmTopicFromStart" Me.StartPosition = System.Windows.Forms.FormStartPosition.CenterScreen Me.Text = "Topic From Start" Me.TabControl1.ResumeLayout(False) Me.ResumeLayout(False) End Sub #End Region End Class Tag: Threading Error Tag: 54892
  - 14
    - TextChanged event firing before the KeyXXX events Hi all, I have a combobox control, in wich I put an autocomplete code. This code is in the TextChanged event, but when this event fires, the Text property isn't updated yet. For example, if the Text property is "Foo" and I press the letter "d", the Text property when the TextChanged event runs is "Foo". Only after the TextChanged event be processed, the KeyDown, KeyUp and KeyPress events fires and update the Text property. I think it's very strange. Is it a bug? How can I get the correct Text property in the TextChanged event? Thanks in advance, Fabrício de Novaes Kucinskis. Tag: Threading Error Tag: 54890
  - 15
    - Select MenuItem Question I'm building menus in code from a database. How do I determine which menu item was selected? Does the System.EventArgs contain this? If so, what property? Here's the declaration: Private Sub Menu_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles MyBase.Click Thanks! Tag: Threading Error Tag: 54887
  - 16
    - Keep WinForm open on own thread Hi, I have a situation where I have a sub that is started on its own thread. The sub opens a form which is supposed to stay open, and it does open for a brief flash, but as soon as the sub ends, the form goes away. This behavior makes sense to me, but I'm wondering how I can keep the form open until the user is done filling it in, then close the form and abort the thread. Thanks in advance, -George Tag: Threading Error Tag: 54886
  - 17
    - Pasting metafile from clipboard into picturebox control Hi, I am currently writing some code which copies an image in the Windows metafile format pasted on the clipboard into a picturebox control. For some reason, I have not been able to get the following code to work: Dim od As IDataObject = Clipboard.GetDataObject() If (od.GetDataPresent(DataFormats.MetafilePict)) Then PictureBox1.Image = CType(od.GetData (DataFormats.MetafilePict, True), Metafile) End If When I switch the formats to Bitmap, everything works fine, but when I use the EnhanceMetafile or the MetafilePict formats, I get a blank picturebox. I have been reading on the net about how there is a bug in the framework with regards to metafile formats on the clipboard but I don't know enough about the native API calls to make heads or tails of it. Any help would be appreciated. Victor Tag: Threading Error Tag: 54884
  - 18
    - Problem placing components on inherited forms Hello, I am trying to create a custom control which inherits from System.Windows.Forms.Form and can be used as a base class for an application. So far so good. I am also writing custom components which inherit from System.ComponentModel.Component. What I would like to know is if there is any way for my custom form class can be made aware of these components? The problem is that when my form class is instantiated at design time via "Add Inherited Form" and I drop a component on this form, the designer automagically extends the base class by adding an IContainer called "components". The component is then added to this collection. Is there any reasonably simple way to get these components to act like controls and drop themselves into a nice collection of my choosing? I also need the reverse link - from component to form i.e. something comparable to the Parent property of controls. Thanks for all help. Sincerely, Markus PS - for more background info, I started a thread on Aug. 19th '03 re: "How-to create user control replacing..." Tag: Threading Error Tag: 54883
  - 19
    - newbie C# Clicked event not firing Hi All, In a C# Windows project, My clicked event code did not fire. First I had to actaully declare the method rather than just adding the code and then in the InitializeComponent I had to add: this.button1.Click += new System.EventHandler (button1_Click); So that the event would run. In vb.net this seems to be generated automatically. Do I have a setting turned off somewhere in Visual Studio? tia Randy Tag: Threading Error Tag: 54864
  - 20
    - Form cannot be designed I have recently installed v1.1 of the .NET framework, and in the project I am working on, I have changed the reference path to refer to the new framework. Now I get an error message saying that "The base class 'System.Windows.Forms.Form' cannot be designed" If I change back to the older version of the framework it seems to work fine, but I need to use some of the newer classes only available in v1.1 All help will be most appreciated Tag: Threading Error Tag: 54862
  - 21
    - minimize to tray Hi all! How can I minimze a windows forms application to the tray and keep it there? Regards Markus Tag: Threading Error Tag: 54858
  - 22
    - Printing Question How do I select a printer tray when printing from VB.NET? If I have "Tray 1" set as "Plain" in the printer driver and "Tray 2" set as "Letterhead", how do I specify the paper type when printing so it goes to the correct tray? Tag: Threading Error Tag: 54857
  - 23
    - SIMPLE question. Hello all - I have 2 VB.Net Win forms. When I'm through with using Form #2, I just close it but what I want is trigger an update event on Form #1 based on the activity inserts I just did in Form #2. Is there an event that I can call with the form being open already like frm1.<combo box>.focus so I can trigger the update event. I realize this a simple question but during the converting to .Net idea, I don't want to create a new instance of that form. So even a gotfocus or focus to the form itself would be great. And any code of how that is constructed. Much thanks and cheers! Mark Tag: Threading Error Tag: 54852
  - 24
    - vbdotnetforums.com site available This is a multi-part message in MIME format. ------=_NextPart_000_006A_01C367C5.1E568230 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Hello all, Just announcing a free site for VB.NET discussions. Visit the new = resource at http://www.vbdotnetforums.com and share your VB.NET = expertise. Neal ------=_NextPart_000_006A_01C367C5.1E568230 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 6.00.2800.1226" name=3DGENERATOR> <STYLE></STYLE> </HEAD> <BODY bgColor=3D#ffffff> <DIV><FONT face=3DVerdana size=3D2>Hello all,</FONT></DIV> <DIV><FONT face=3DVerdana size=3D2></FONT> </DIV> <DIV><FONT face=3DVerdana size=3D2>Just announcing a free site for = VB.NET=20 discussions.  Visit the new resource at <A=20 href=3D"http://www.vbdotnetforums.com">http://www.vbdotnetforums.com</A> = and share=20 your VB.NET expertise.</FONT></DIV> <DIV><FONT face=3DVerdana size=3D2></FONT> </DIV> <DIV><FONT face=3DVerdana size=3D2>Neal</FONT></DIV></BODY></HTML> ------=_NextPart_000_006A_01C367C5.1E568230-- Tag: Threading Error Tag: 54845
  - 25
    - Check style for C# How you guys go for checkstyle of your C# code? For our C# project we have some code design guide lines as to whether barces are in place and whethere lines are upto We have FxCop and its working great but that is for checking binaries and not for checking source code styles. We are looking something of the sort of CheckStyle and PMD of java world. Awaiting replies. Tag: Threading Error Tag: 54839
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  - 1
    - Managing two connected forms Hi all, in my application I need to show a form that contains text box where user can edit patterns. When text in the text box changes, second form displaying the list of items matching the current pattern is shown. The problem is that I would like the first form to hide when focus is moved to some other window _except_ for the second form. I.e., user should have an opportunity to edit the pattern in the text box and select items from the list at the same time, but when it moves focus away both forms should disappear. How can I achieve this? Tag: Threading Error Tag: 54838
  - 2
    - custom drawing menu and MdiList I have a nice custom drawing menu. One of the items is a MdiList and dynamically shows the list of all open MdiChildren. the problem is that the items that identify the mdichildren are not custom drawn. I have no idea how it could be possible to perform also custom drawing for these items. at first glance this does not look like a big problem. after all, the subitems could be drawn as standard menu items. but here comes the the additional problem - the main menu item that has the MdiList item as the subitem is incorrectly drawn because it gets sligthly wrong information about its Bounds (in DrawItemEventArgs). Big thanks for any help, Wiktor Tag: Threading Error Tag: 54837
  - 3
    - Is there OpenFolderDialog? I want the user to select a folder from the machine through a FileOpenDialog kind of interface. Is there any way so that i can ask the user to select a folder instead of File? Thanx and Regards, Noor Tag: Threading Error Tag: 54829
  - 4
    - Problems in Connection pooling: Urgent Hello All, My windows application has a form that needs to display fresh data to the user at short intervals (say every 10 seconds). For this purpose, I have included a timer. On every timer tick, I perform the database related operations to display the result to the user. Note: Multiple instances of my application will be running at the same time and hence the timer running in each instance and initiation database operations. With this approach, I started receiving errors like: Connection timed out. The connection pool has reached its maximum size because every request to the database opened and closed a connection. I changed the approach to: Creating a single connection for the entire form so that all operations use the same open connection. The connection is closed when the form closes. Even then, I now get the following type of errors: a) 8/11/2003 3:21:40 PM SqlUtility Execute Error: Transaction (Process ID 73) was deadlocked on lock resources with another process and has been chosen as the deadlock victim. Rerun the transaction. TimeTic Calling sp_ProductionTestBackgroundTask at System.Data.SqlClient.SqlCommand.ExecuteReader(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream) at System.Data.SqlClient.SqlCommand.ExecuteNonQuery() at IMD.OM.Database.SqlUtility.Execute(SqlParameter& prmOutParam, SqlConnection cnnCommon) in d:\khyatis\work\projects\imd\imdom\misc\sqlutility.cs:line 595 8/11/2003 3:21:40 PM SC Status Start NSC Monitor Error: at OM.Database.SqlUtility.Execute(SqlParameter& prmOutParam, SqlConnection cnnCommon) in d:\xyz\work\projects\\misc\sqlutility.cs:line 608 at IMD.OM.SC.SCStatus.StartNSCMonitor(SqlConnection commonConnection) in d:\xyz\work\projects\scstatus.cs:line 564System.Data.SqlClient.SqlException: Transaction (Process ID 73) was deadlocked on lock resources with another process and has been chosen as the deadlock victim. Rerun the transaction. at System.Data.SqlClient.SqlCommand.ExecuteReader(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream) at System.Data.SqlClient.SqlCommand.ExecuteNonQuery() at IMD.OM.Database.SqlUtility.Execute(SqlParameter& prmOutParam, SqlConnection cnnCommon) in d:\xyz\work\projects\\misc\sqlutility.cs:line 595 I need to get rid of the above problem. Regards, Mithun Tag: Threading Error Tag: 54828
  - 5
    - two-way databinding radio buttons on a windows form? Hi, How do I get the data in the dataset to update when the radio buttons change? Do I need to add code for this, or shouldn't it happen automatically? Strangely, I have a situation where the radio buttons update the dataset when they get set, but not when they get unset - so all the fields in the ds end up with true values - which cause problems when the form refreshes the data. So I isolated the code in a mini sample and this doesn't update the datasets at all... Thanks! Heidi Tag: Threading Error Tag: 54825
  - 6
    - VB.NET command line question How can I tell my VB.NET application to return info to the command line that called it? For example, if I run c:\myvbnetprogram.exe from the command line, how can I get it to put something back on the same command line like "hello world"?? thanks Tag: Threading Error Tag: 54811
  - 7
    - Toolbar buttons Hi, If I set a very long text string on a toolbar button, the string is truncated. Even if I make the button higher, the text does not get displayed on several lines as it would if I had ordinary button. How can I fix this (short of making the button very wide)? Thank you Tag: Threading Error Tag: 54806
  - 8
    - Finding TEXT of DataGrid Column I am trapping the MouseDown event and am looking to get the value of the cell and also the Column name. I can get the value of the cell with the code below. I can also get the Column name if the DataGrid has a TableStyle. The problem comes when the DataGrid uses the default TableStyle. Using the debugger I walked down the class structure and could find the information at this point dataGrid1.Controls[hti.Column].dataGrid.defaultTableStyle.gridColumns.List._items I can't seem to find my way there at design time, programmatically. Any help would be appreciated. Dave DavidElliott@BellSouth.net ======================================================= if (e.Button == MouseButtons.Right) { DataGridTableStyle ts1; gridBoxText = ""; if (hti.Type == DataGrid.HitTestType.Cell) { gridBoxText = dataGrid1[hti.Row, hti.Column].ToString(); ts1 = dataGrid1.TableStyles["JobRecordCollection"]; if (ts1 != null) gridHdrText = ts1.GridColumnStyles[hti.Column].HeaderText; else gridHdrText = dataGrid1.Controls[hti.Column].Text; } else if (hti.Type == DataGrid.HitTestType.ColumnHeader) { gridHdrText = dataGrid1.Controls[hti.Column].Text; } } } Tag: Threading Error Tag: 54805
  - 9
    - Detecting DragDrop target when dropped into Explorer I have an application which i need to allow a user to perform drag & drop of a "virtual file" into explorer. Upon dropping the file into explorer, my app would create a blank file at the location and begin downloading data into it. I can get the app to create an empty file for use with the DoDragDrop(), which essentially moves a blank file (e.g. "%TempFolder%\foo.txt") into the proper destination, but there doesn't appear to be any method of retrieving the location of the FileDrop where explorer has moved this file to. Any ideas? Tag: Threading Error Tag: 54800
  - 10
    - ComboBox : display different string than the selected list item What I'm trying to do : - Add a form to a new project - Add a comboBox to the form with DropDownStyle = DropDown - In form load : ComboBox1.Items.Add("01 - USA") ComboBox1.Items.Add("31 - Holland") ComboBox1.Items.Add("33 - France") ComboBox1.Items.Add("41 - Switzerland") The desired behaviour is that when a user selects a list item only the number is displayed in the textbox part of the comboBox. So if "01 - USA" is selected only "01" should be displayed. Roughly translating the way this would be done in VB6 I tried the following code : Private Sub ComboBox1_SelectionChangeCommitted( _ ByVal sender As Object, ByVal e As System.EventArgs) _ Handles ComboBox1.SelectionChangeCommitted Dim listItemText As String If ComboBox1.SelectedIndex >= 0 Then 'Calculate and store the value we want to display listItemText = ComboBox1.SelectedItem.ToString If listItemText.Length >= 2 Then listItemText = listItemText.Substring(0, 2) End If 'Cancel the selection ComboBox1.SelectedIndex = -1 'Update the textbox part ComboBox1.Text = listItemText End If End Sub However this doesn't work. I've also tried experimenting with the SelectedValueChanged, SelectedIndexChanged and TextChanged events, with no better results. It seems that changing the selectedIndex in any of these routines always cancels out changes made via the text property, whatever the order the operations are carried out in. I've finally resorted to using a timer to update ComboBox1.Text after all these events have finished firing, but it's a very shoddy solution. Surely there must be a way to do this properly? Tag: Threading Error Tag: 54795
  - 11
    - How to select a group of cells? Hi. I need to allow my users to select groups of adjacent cells, instead of selecting a row. For example, if my row has five cells I need to be able to select cells 2,3 and 4. I can only find ways to select entire rows but not groups of cells. Thanks, Robert Scheer Tag: Threading Error Tag: 54794
  - 12
    - How to sync combo's selected item to the field's value of the current record I'm running win2k and VB.NET (.net 1.1) I have a data entry form and one of the fields is a combo who's datasource is a dataview. The dataview has 2 columns, an ID column - integer, and a name column - string. The form is not databound so the form gets populated with data for the selected reocord via values from a business class. When the use selects an item from this combo's dropdown list, it writes the ID value to the business class, and desplays the name value in the combo.text property. When I navigate to a different record, the ID value changes for this field. How can i get the combo to syncronize to this ID value, or at least set the combo's text to the correct Name? Only the ID values are persited in the business class and not the name values. In MS Access and some 3rd party combos for VB6 all you had to do was set the combo's value to the ID and it automaticly scrolled to the correct item in the dropdown. Thanks. -- George Padvorac georgep@dontspamme-nwis.net Tag: Threading Error Tag: 54792
  - 13
    - Help: Exception using Threads and AxSHDocVw.AxWebBrowser I have created an application that loads assemblies (plugins). These plugins are windows forms that have an embedded browser. private AxSHDocVw.AxWebBrowser browser; If I comment out this.browser = new AxSHDocVw.AxWebBrowser(); and associated code to avoid exceptions like this.browser.Dock = System.Windows.Forms.DockStyle.Fill; this.browser.Enabled = true; from my plugin, then I don't get the exception. I only receive the exception when using Threads. If I don't use threads then I don't get the exceptions. The exception is generated --=> AFTER <=-- exiting main(). It is NOT caught by the catch(). Any thoughts? Dave DavidElliott@BellSouth.net ============================================================= EXCEPTION: An unhandled exception of type 'System.NullReferenceException' occurred in system.windows.forms.dll Additional information: Object reference not set to an instance of an object. ============================================================================== CODE main() { try { plugin = (IPlugIn)assembly.CreateInstance("AJB.Plugin"); plugin.PluginID = 74; thr = new Thread( new ThreadStart(plugin.Execute) ); thr.ApartmentState = ApartmentState.STA; thr.IsBackground = true; thr.Start(); thr.Join(); } catch (Exception e) { string s = Application.ExecutablePath.ToString() + "\n" + e.ToString() + e.Message + e.StackTrace; MessageBox.Show(s, "ExecutePlugin() Error"); } } public void Execute() { InputForm ajbInputForm = new InputForm(); ajbInputForm.ShowDialog(); ajbInputForm.Close(); } Tag: Threading Error Tag: 54791
  - 14
    - Toolbar Floating / Docking I have been unable to find any info on how to accomplish toolbar floating & docking in C#.Net. Has this not been implemented in .Net yet? I'm trying to model my application usability (menu layout, features) based on existing windows apps which to toolbar docking & floating. Any help would be great Thanks, Glen Tag: Threading Error Tag: 54790
  - 15
    - Databound Combo - How to format date values Im running win2k and .net 1.1 I have a combo who's rowsource is a dataview. The data being used are date values and this is what it looks like in the dataset thats used for this dataview: "2003-06-14T00:00:00.0000000-05:00" And the dates in the combo's list looks like this: 6/14/2003 12:00:00 AM How can i format the dates in the dropdown list to look like this: 6/14/2003 Thanks. -- George Padvorac georgep@dontspamme-nwis.net Tag: Threading Error Tag: 54789
  - 16
    - Specifying relative path for AxWebBrowser.Navigate Hi, I want past a relative path information to my AxWebBrowser.Navigate method. It should be something like AxWebBrowser1.Navigate("..\temp.html"). If relative path name cannot be specified, is there a way that I can pass my application path to here? Thank you Gos Tag: Threading Error Tag: 54787
  - 17
    - Help & the HelpProvider -> Showing Topics??? I am trying to display a RoboHelp HLP file using .NET Help and the HelpProvider. All of the commands display the help file, but none preselect the Index or Seach tabs. Nor can I display a preselected topic. What is the Keyword supposed to be set to? Help.ShowHelp(this, helpFile); Help.ShowHelpIndex(this, helpFile); Help.ShowHelp(this, helpFile, HelpNavigator.Find); Help.ShowHelp(this, helpFile, HelpNavigator.Topic, 8025); WindowsAPI.WinHelp(this.Handle, helpFile, (int)(HelpNavigator.AssociateIndex), 8025); helpProvider.HelpNamespace = helpFile; helpProvider.SetHelpNavigator(this, HelpNavigator.Topic); helpProvider.SetHelpKeyword(this, "8030"); helpProvider.SetHelpString(this, "The Select Items window provides a central location for report generation and watch window item selection."); Anyhow, any working examples would be helpful. THANKS! Steve Tag: Threading Error Tag: 54784
  - 18
    - Exception blocked in Application.Run() Hi, I have a very strange strange problem. All the exception that are thrown in my Windows Forms do not thrigger the display of the traditional exception dialog box that is usually shown. Instead, it seems that the Application class, or any other class that manage the unhandled exception in Windows Forms, catch it and silently continue program execution. Three questions: 1) Is there anyone here that had the same problem? 2) How can it be corrected? 3) Am I missing a property or a setting somewhere? Etienne Fortin Tag: Threading Error Tag: 54777
  - 19
    - How to make Win32 controls transparent? Hi, I found that checkbox, label and groupbox have painting problem with their background. I create simple frame with background picture and add checkbox, label and groupbox on it. I set transparent background on controls to see whole picture. Yes, it works. But, if I set controls style to System (to get correct XP Visual Style): checkbox and label background lost transparency!!! groupbox doesn't repaint background (group box is like window throw the frame) So, I think that these three controls in not implemented correctly in .NET. So I start to implement my own Win32 controls. I create the "static" control (label is based on it). But the problem is the same: "static" control is not transparent. So, question is: "How to make Win32 controls transparent?" I think, that it could be done successfuly, because checkbox and radiobutton is the same Win32 class, and radiobutton is painted correctly, but checkbox is not. Thanks for any advice. Leo Tag: Threading Error Tag: 54776
  - 20
    - How to Insert Header and Footers into Richtextbox Hello everyone I was wondering if someone could help me with a eazy way to add header and footers to a richtextbox. I am generating a report into the box and whant to see how it looks with the Headers and footers. Regards Gretar Tag: Threading Error Tag: 54774
  - 21
    - How can I do this? Hello, I am using a AxWebBrowser control in a VB.net windows form. In the form, I also have a TextBox where the user enters the URL he would like to navigate to. I want the TextBox to change it's display (to reflect the new page address) when the user clicks on an hyperlink on the web page (like in Internet Explorer). I have been looking at the events and methods of the AxWebBrowser object, and I can't find it! Any help on this would be very appreciated. thanks, Ross . Tag: Threading Error Tag: 54773
  - 22
    - Shared properties across instances I have a console app running that references an Class Library. The console app runs fine, but I want to be able to run a windows form that will let me poll properties of the Class and reset them. As my console is running, it checks these properties, if one of the properties gets set, then my console app knows that it is supposed to do something, like shut down. I have setup a Shared property in my class: Private Shared sTest As Integer Public Shared Property Test() As Integer Get Return sTest End Get Set(ByVal Value As Integer) sTest = Value End Set End Property As I understood it, Shared properties are available to all INSTANCES of a class. Granted that the Windows form is probably a different process than the Console...is there anyway to create a truley shared property across all instances in all processes? IS there another way to do this? My console App is running through records in a DB, so I could just update the record it is working on, but that would be tedious since it would require me to poll the DB way to often. Any help would be appreciated or clues on another way to do this... Tag: Threading Error Tag: 54771
  - 23
    - DataGrid Updating DataSource I have a datagrid that displays a few columns from a table. I need to be able to update a process date on each row if any of the displayed columns get updated. The process date ("UPDT_DT") is not in the datagrid. I put an event handler on the textboxes in the grid so I can capture when a change occurs, but I can't seem to get the process date column updated. Here is the code I tried: CType (Me.BindingContextdgLists.DataSource, "UW_LISTS").Current, DataRowView).Row.Item("UPDT_DT") = Date.Now The line of code executes but when "UPDT_DT" is updated it resets the row in the data grid. Any ideas of how to accomplish this task ? Tag: Threading Error Tag: 54769
  - 24
    - app.config I have a solution with 2 projects: a class library(my.dll) + a windows application (mine.exe). In exe project I have a reference to the dll. In both I have app.config files, BUT only mine.exe.config file is generated in \bin\Debug\ folder of exe app. What can I do to generate my.dll.config from app.config ? Thnx for any advice. Tag: Threading Error Tag: 54768
  - 25
    - How do I enable Add button in custom collection editor? Hi all. I am developing PropertyGrid runtime support for a custom class. One of my attributes in this class is an ArrayList that holds instances of another custom class. I have derived a custom collection editor for this list attribute. When this collection editor is invoked, it does display the correct caption which I assume means it knows the type of objects it is managing. My problem is the Add/Remove buttons are still disabled. From all the research I have done, I believe it is necessary for me to derive this custom collection editor because I am not working with a collection that provides access to an Item attribute for type discovery, right? I have no further enhancements that need to be made to this collection editor, so do I need to be overriding the EditValue method? If so, what should my implementation of EditValue be doing? Also, I do not have a custom TypeConverter written for the EmbeddedObject type. Is this a problem? If anyone out there can help me, I would be more than grateful. As it sits right now, I am as clueless as top management at a software design conference when it comes to collection editors. MSDN is of no help. There are a few article for the picking out there, but none explain the inner workings of the CollectionEditor in any detail. If anyone can point be to some good articles, I would love to see them. I feel like if I could better understand the CollectionEditor class, I might not be as clueless when trying to use them in real world scenarios. Thanks in advance! Casey Chester MIS Director Hirschfeld Steel Co., Inc. public class BrowsableObject { ... ... [Editor(typeof(EmbeddedObjectCollectionEditor), typeof(UITypeEditor))] public ArrayList EmbeddedObjectList { get{ return embeddedObjectList; } } ... ... } public class EmbeddedObjectCollectionEditor : CollectionEditor { public EmbeddedObjectCollectionEditor() : base(typeof(EmbeddedObject)) { } protected override Type[] CreateNewItemTypes() { return new Type[] { typeof(EmbeddedObject) }; } protected override Type CreateCollectionItemType() { return typeof(ProjectPolicy); } public override object EditValue(ITypeDescriptorContext context, IServiceProvider provider, object value) { // // If custom implementation is required, what should it be??? // return base.EditValue (context, provider, value); } } Tag: Threading Error Tag: 54766

I'm getting the following error in my Event Viewer
Application Log:

Description:
Faulting application devenv.exe, version 7.0.9466.0,
faulting module mscordbi.dll, version 1.0.3705.0, fault
address 0x0000f64a.

I'm using the following routine:

Dim skt As New SBSockets()
skt.IP = dr.Item("IPAddress")
skt.RemotePort = dr.Item("Port")
Thread = New System.Threading.Thread(AddressOf
skt.StartListening)
Thread.Start()

When the code reaches the Thread.Start line of code, it
crashes, and asks if I want to report the error to MS and
restart my development environment.

I got W2000 PRO SP4.
Framework 1.0
384 RAM

Any help on how to solve this will really be appreciated!

TIA

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