Hi, I have the strangest thing... I am porting a C# .NET framework 1.1 application to framework 2.0. I got slapped around by the new framework on my unsafe use of threading, requring me to marshall all events coming from worker threads to the main UI thread before calling into controls. ...more >>

These things are rather basic, but I can't seem to find an explanation in MSDN. I'm using VC++2005 Professional. 1. What steps must I take to rename a form? I currently select the form in the Class Explorer, and then in the properties window, I enter a new name under "Name". This seeme...more >>

Hey developers I 'm trying to migrate the following code to vs2005 but i'm getting an error this is the code in vs2003 in the app.config file <add key = "ConnectionString" value= "a valid connectionstring" /> in the code view string my_connection = System.Configuration.Config...more >>

Hi, I have an application which performs set of operations. There is status window (different from main application UI) which shows the status of current operation. When I change the status in the status window then the main application losses focus. I am changing the status from main a...more >>

When I show a form composed of some 20 controls, including one complicated control, it takes about 2 seconds from the moment of form.show() to the point where everything is drawn. What can I do so that this doesn't happen, or that I at least hide it from the users ? I've tried double bufferi...more >>

Hi To All, I've a typed dataset and datagridview. I add a new row typed dataset but datagridview not refresh. I've unchecked datagridview "enable adding" "enable editing" on the grid when i design mode. my code is here... KeyGeneratorDataSet ds = new KeyGeneratorDataSet(); ...more >>

Hi! I did a form that inherits from one wich load data through a datagriddatasource. I need to change only the name of the table on form that inherits, but in designer time (of this form that inherits), the VS try to load data based on parameters of parent form. How can I disable it? Thanks i...more >>

I have a split container control on a resizable form. The split container is also anchored Top, Bottom, Left and Right to the host form. When the form is visible and I move the splitter to resize the panels everything works ok. But, when I either move the form, or, resize the form, even by jus...more >>

We have a bunch of usercontrols, some of which have problems when you open them - sometimes for no reason we've been able to track down. Acting on a tip I read somewhere online, I decided to try running devenv from another instance of the IDE, set Exception Checking to break whenever anything ...more >>

Hi all, i am using multthreading for string parsing.When i bind the data to datagrid, all the controls are visible false.I could able to get the data, but not displaying.Also when i say form.visible to true, then 2 forms are dispalying with the same pointers.So please help me in solving this ...more >>

Hello, On a Winform, a dataset and a binding source. I would like to have 2 TextBox to the same column. I bind the Text property to the column like this (extract from Form1.Designer.cs) : textBox1.DataBindings.Add(new System.Windows.Forms.Binding("Text", this.bindingSource1, "Column1",...more >>

Hi, I am trying to clear a combo box at runtime. I am using the remove method, and then I use the refresh method in order for the combo box to display properly. But it does not work. I seemed to be missing something. Can anyone help? I have been away from this for a while. In C#: iCnt = c...more >>

I'd like to refresh my dataGridView and select the same row that was previously selected. Unfortunately, the rows location may have changed during the refresh. Assuming one field is unique and I've saved this value prior to the refresh, do I have to iterate through all the records until I ...more >>

In the documentation, I see an example of how to capture the SelectedIndexChange of a DataGridViewComboBox. Does anyone know how to identify which combobox you've got on EditControlShowing if you have more than one? stupid or otherwise, I tried e.control.name (and some others) with no luck...more >>

Hi All, How do we verify that a server running on Windows 2003, is either migrated/ upgraded from Windows 2000 or had been through a fresh install of Windows 2 003? Repeating.. how do i make sure that a Windows 2003 server is migrated/upgra ded from Windows 2000 or not? Regards, Souvi...more >>

I have two related questions. I have looking in the ide help and have not been able to find the answers. First, I need to run some initialization code early in the life of my forms. I have a base class form and my first thought was to put the code in teh New method after the initialzeCompon...more >>

Hi I would like do display a custom ContextMenuStrip when I right-click on the nodes in the TreeView. Depending on the selected TreeView node, some items in the ContextMenuStrip must be deactivated. How can I disable items in a ContextMenuStrip control when I right-click on different no...more >>

Even if I remove the resizing icon (bottom right of form) and remove the control icons (upper right) I can't seem to prevent inadvertant form "maximizing" when the top bar is double clicked. How can I supress this? -- Michael Hockstein...more >>

the form I have has 5 buttons and 3 textboxes and 1 list box see crude pic below --------------------------------------------------------------- | textbox_______________ btnBrowse | | | | textbox_______________ btnBrowse ...more >>

I'm looking for a rss/atom feed reader component, capable of consuming the various formats of rss and atom. I would like to integrate it into a Windows forms application where I would like to control the presentation of the feed content. I saw may sample Windows forms applications but none l...more >>

I am using vb.net 2005 pro I have a form with many Combo Boxes that are populated from a database. In fact many of these combo boxes are populated from from the same table, but with different where criteria. The data does not change often. What is the best stategy in setting this combo bo...more >>

I have a ListControl on a TabPage. It doesn't matter which ListControl as I've tried ListBox, ComboBox, and as shown below a custom derived control (in fact the RadioButtonList control described in a July 2004 MSDN article). Here is a sequence of happenings that is giving me grief: 1) I sel...more >>

My program has suddenly stopped working on the client pc's but still works on the developer pc. this is the error i get on the clients: EventType clr20r3, P1 sales.exe, P2 1.0.0.0, P3 4523f22f, P4 sales, P5 1.0.0.0, P6 4523f22f, P7 1f, P8 c6, P9 system.invalidoperationexception, P10 NIL....more >>

I have a form with a couple of datagridviews on them. I'm want to automatically update the database so I've been calling tableview.update when the bindingsource.listchanges event fires. WELL ... it seems the user likes to switch back and forth between datagrids, maybe tabbing or ENTERing whi...more >>

Hi guys, I'm a asp.net 2.0 programmer and I'm creating my first applications, but I need to ask you one question. in ASP.NET 2.0 our DB string is placed under web.config and then we can access it using ConfigurationManager.ConnectionStrings("myConnection").ConnectionString and ho...more >>

How can I display a column that contains a simple indexing of the rows.0,1,2, Isnt there a built in property I can use or must I implement it myself by creating a new column and refreshing the indexes each time a new item is added or deleted. It must support deleting updating adding rows. w...more >>

Hi everybody! I have windows forms application containing a lot of MDI (shown with ..Show()) and modal (shown with .ShowDialog()) forms. At some instant I need to kill all of them exept main application window. MDI forms can be accessed using MDIChildren property of the main form. But how ca...more >>

I have a reproducible scenario here where I have a TreeView that is displayed on a Form. I have a custom class defined in the base which is nothing more than a fancy BindingList<T> While building the node, I add event handlers on the ..ListChanged event with definitions to rebuild the neces...more >>

Hi, I have a VS2005 solution that includes a control library project. The problem is that the controls that I've created in the control library project do not appear in toolbar when I am creating forms in other projects within the same solution. I know that I can right click on t...more >>

Hi All, When we develop applications using Windows Forms, we face a number of issues whihc have already been documented by different developers. There are a number of small tiny examples explaining how to do a particular thing in ..NEt win forms like 'adding image to menu items'. can anyone gu...more >>

Pardon the fairly noobish question here... I've created two classes that expose some properties. I've declared two List<T>s based on them: List<MyClass1> MyList1 ... List<MyClass2> MyList2 ... I then used the Data Source Wizard to add both of them as Data Sources in my project and crea...more >>

I've seen this issue posted in the past, but couldn't reply to it because it was so old. I'm starting a new thread for it. http://groups.google.com/group/microsoft.public.dotnet.framework.windowsforms/browse_frm/thread/2fb40d6b7e3bf989/e60d15e0774836cc%23e60d15e0774836cc <---Cut and paste---> ...more >>

I would like to build a tabcontrol containing subclassed tabpages that will support some additional properties and possibly methods. This is not a problem in code but is it possible to configure the tabcontrol so that I can use the TabPage Collection Editor to add new MyTabPage objects instea...more >>

Good day, I'm trying to set a C# form as a child to a C++ window. The C++ window is constructed by CreateWindowEx. The C# form returns its handle through managed C++, and its style is set to WS_CHILD before SetParent(). After SetParent(hndCSharpAsChild, hndCPPAsParent), the C# form disappe...more >>

..Net 1.1 I have a form using autoscroll. My painting isnt working right because of the way the scrolling is implemented: it only invalidates the new area that gets scrolled in. I need to either invalidate the entire form on scrolling, or I need to know the actual size of the loaded form. N...more >>

I have the exact same problem that's described in the post I'm attaching. This post ws placed by Dave Leach on Mon, Apr 17 2006 4:30 pm because . If anyone knows the solutions just let me know. POST: I am developing a Windows Forms application using Visual Studio 2003 and C#. The applica...more >>

My computer is not working right. When i restarted it the sound did not work and more and neither did alot of other things. It uninstalled my printer and wont let me install it help me asap!!!!!...more >>

I am unable to figure out why this code does not work....it never prints anything nor throws an exception. PrintDialog dlg = new PrintDialog(); if (dlg.ShowDialog() == DialogResult.OK) { thread = new Thread(new ThreadStart(Print)); thread.Start(); } public v...more >>

Could anyone recommend a tree-view control that allows columns? Ideally it would also allow images in any column. Freeware is preferable (it's simply a hobbyist project -- a newsreader, to be specific). Here is a screenshot of the kind of thing I'm looking for: <http://www.czilla.cz/images/t...more >>

Hi, I have a form with a tree view control docked on the left side, a list view control docked on the right side. i am using a splitter now. the splitter can only be docked to left or right, means it can be glued either to the tree view control or to the list view control. How can I glue it to...more >>

Hi, I am having trouble removing my second app bar on close, basically keeps last appbar to close, slightly registered, but can be reset by faking startbar move. Looks like VB can handle 2 appbars in same app. ...more >>

Hi I want to have most of my website available to users without any authentication (ie. they can freely browse). However, if they go to a restricted part, they should be redirected to a login page, and then authenticated. I don't want to use SQL Server, as I would have to pay for that with...more >>

Hello i created a Graphics Object in VB.Net from a WebBrowser Object with webbrowser.createGraphics How can i save this Graphics Object to JPG / GIF / BMP or other Image-File? Best Regards Josh ...more >>