When I load the main form of my MDI application and it doesn't find a specific registry value, I want to show the Folder dialog box. However, I want this dialog to be ON TOP of my main form. Performing my checks and showing the dialog in Form_Load displays the dialog before the main form is visi...more >>

I have a DataGridView which I have configured a set of columns and their fill weights in the designer. Also, I have specified a DataPropertyName for each column. I programmatically create a BindingSource to hold a set of objects that I want to display in the DataGridView. I then assign the ...more >>

when i run this code i get an error message cant find the specified file, But if i paste the command into the command prompt it works fine could someone tell me why this is happening i uses a break point and quick watch to get the command string. System.Diagnostics.Process ...more >>

Non of the advises I've found here helped me. Anyone knows a simple solution for that problem? Thanks! ...more >>

Hi Is it possible to use a spell check in a windows and/or asp application. Say, there is some text in a textbox. How can we run a spell check on the contents. If there are any resources available on internet please let me know. thanks Newish ...more >>

Is it possible to bind a DataGridView control to an DataRow[] (array of DataRow )? ...more >>

How to display line number into a DataGridView control? ...more >>

In a WinForm, in the FormClosing event, there is an opportunity to cancel the close by setting the Cancel property of the FormClosingEventArgs to true. This is typically done when there is unsaved data on the form and the user, when asked if they want to close the form and lose data or not, sa...more >>

I have a ComboBox in Form1 which is bound to an ArrayList. When I show Form2, Form1 is hidden. In Form2, I updated the ArrayList and an event is fired, so the event handler in Form1 will rebind the ComboBox to the ArrayList. I do this by resetting the DataSource, DisplayMember and ValueMember of...more >>

As the subject says, when I call Items.Clear() for a ComboBox the text inside the edit of the ComboBox is selected with absolutely no reason. Is there a way to avoid this (bug)? thanks ...more >>

Hi i have a application that unzip zips files. it works fine with files with a .zip extention. how can i use C# to unzip a file with a .gz extention? i am useing a J sharp dll to unzip the files. ...more >>

This is incredibly frustrating. I have a VB6 app at work that we're upgrading to .NET. In the VB6 code, I'm able to get a reference to txtText by using frm.Controls(txtText). In ASP.NET, we have Page.FindControl(txtText). But in WindowsForms, there doesn't seem to be any equivalent. Now, ...more >>

-- Regards, Al Christoph Senior Consultant Three Bears Software, LLC just right software @ just right prices @ 3bears.biz Microsoft Certified Partner (ISV) Coming soon: Windows Mail for Vista. ...more >>

Hi folks, I have a small modal form in front of a big form. How do i cleanly hide the small modal form? Currently, when i do smallForm.Hide(), the bigForm area that was under the smallForm refreshes in bits and pieces. mainForm.Show() smallForm.ShowDialog() smallForm.Hide() // ugly ...more >>

Hi, How can I even show same form twice if modal forces stop of execution. Poor error, Microsoft. Error is . Form that is already displayed modally cannot be displayed as a modal dialog box. Close the form before calling showDialog. ...more >>

Hi guys when i try to open my cdrom with "mciSendString" API Call. i get exception. but i have no idea how this happen. Can you guys give me some idea? Thanks My code likes: [DllImport("winmm.dll", EntryPoint = "mciSendStringA")] private static extern long mciSendString(strin...more >>

What is the deal with not being able to make forms width smaller that 123? ...more >>

I am using the following code to sort two columns; for example, lastName, firstName. Public Class ARowComparer Implements System.Collections.IComparer Private sortOrderModifier As Integer = 1 Public Sub New(ByVal sortOrder As SortOrder) If sortOrder = sortOrder.Des...more >>

Hi, I want to create an app with several different 'pages' A tab control would be perfect if i could turn off the tabs and change the pages programaticaly. It doesn't look like this can be done, so what would be the usual way to achieve this kind of interface. Thanks for your help. ...more >>

These day, I got a problem when I'm writing a mixed program - there seemed to be some events missed in message routing! In my case, when I clicked into a native window, WM_LBUTTONDOWN and WM_LBUTTONUP should get handled in this window's wndproc. But the WM_LBUTTONUP events seemed disappered. ...more >>

In my C# winform project (MyProject), I added a new 'User Control' item. I can't (visually) add it to any forms because it does not show up in my Toolbox. If I open the project using Visual C# Express, the top grouping in my tool box is 'MyProject', and my custom control appears in there....more >>

I copied and paste a form in my solution and renamed the copy (all done in the solution explorer) and now, when I compile the app, I get the following error: ----------- The item "obj\Debug\SingleInstance.UnlockDlg.resources" was specified more than once in the "Resources" parameter. Dupl...more >>

Ok. I give. How can you select a row in the UltraGrid upon mouse right-click? Thx. -ak ...more >>

Hi, I want to list down all ActiveX controls which are registered on my system. How can it possible through C# ? Please help me and reply ASAP. Thanks Melisa ...more >>

Dear List, I am writing to ask your advice on whether you think this is possible - I use a SDK written in C++ to create DLL audio 'plugins'. I am able to succesfully build these DLL's in VS2005. I was wondering if you think it would be possible to incorporate .NET 2.0 functionality within...more >>

I have a pretty large UserControl (2000 pixels high) on which around 1000 smaller controls are embedded. When I scroll this whole thing using the mouse wheel, everything gets rendered nice and clean. On the other hand, if I scroll by moving the scrollbar, the display kinda waits until I let go b...more >>

Hi, I'm overriding WndProc to process some custom messages like so: protected override void WndProc(ref Message m) { if (m.Msg == ImageFileMsg.MSG_IF_NEW_DATA) { ProcessNewDataMessage(m); } base.WndProc(ref m)...more >>

Hi guys I want to get the system drive info programmatically. like which one is hard disk, which one is a DVD-Rom. But I don't know how to start. Can you guys please give me some idea how to get these info. Cheers ...more >>

Hi: i am creating a setup file. I want it to copy CDO.dll into C:\Program = Files\Common Files\System\Mapi\1033\NT and register it. Do you know how = to do it? I cannot find any property that let me copy files to = C:\Program Files\Common Files\System\Mapi\1033\NT.=20 Thanks, Dennis Huan...more >>

I Had realized a user contro ctrlContro and i load it in this way: ctrlControl c1=new ctrlControl c1.Partent=this; c1.Show(); this is right, how do i unload this controls ? c1.dispose(); c1=null is wrong tnx ...more >>

Hi All, I have a strange problem i my app. using the RichTextBox Class. I am setting the text proprty in my control with some text, this text includes "\r\n" line breakes, and it looks fine. Then I access the control by using some method e.g. GetLineFormCharIndex() or Select() and then when...more >>

Hi everyone, We have a need to make a Windows Forms (2.0) client application that will be installed on our clients site. The data that the application uses needs to be centrally available to a potentially large number of other sites, which would seem to leave us with our traditional appr...more >>

The standard .NET ListView control paints a last blank column to fill-up the extra-space in the ListView. Is there any workaround? My listview has only one column, and I don't want users to see that extra blank column. Roy....more >>

I have a C#.net windows form project that connects to a webservice that returns a dime attachment (pdf document). I need the winform to open and load the pdf document into acrobat reader. I do not want to write the file to the hard drive to create a path so that I can call System.Diagnostics.P...more >>

Hi all, I want to hook into the event handler that is used when the scroll changes when you tab through controls. I expected this event to get sent through: protected override void WndProc(ref Message msg) But, this method is not triggered when the user is just tabbing through controls. ...more >>

I have a question on what the "proper" way is to link Controls and logic? At my current project, which is a C# .NET 2.0 GUI application, they use events to listen on buttons/lists/menu items. Ie. the code for linking an action/logic to a button it looks like btn_Clicked(), and so on (list_DblCli...more >>

I have been developing for about three years now, i am now looking forward to getting a new job. I am MCAD.net certified. I am looking forward to have some one who could send me a sample of a mature CV that can attract an employer. Can anyone help? my email address is federick.ade@comic.com...more >>

Hi How can I display a ToolTip for a disabled (Enabled = false) Control (Button, CheckBox, ...) with C# 2005? Thanks a lot andersch...more >>

Hi: I am doing databinding on a datagrid with a big table. It takes very = long time to finish it. I wonder if it's possible to use thread to = divide databinding into several phases in the background. so user don't = have to wait so long. for example, I display first 50 records to users, = t...more >>

I have a form with a DataGridView on it. It's not data bound - I custom designed the columns, and create rows and fill in column values programatically. I'm in the Shown event handler for the form, and I am doing processing that takes a bit of time, and updating the DataGridView as the proc...more >>

Hi everyone, I have an assignment where I have to load an image into a picture box (no problem), then loop over it, from left to right, playing a different sound based on the RGB value of the pixel. I could use a suggestion on a good way to load and play sounds in .Net, but my larger que...more >>

I write output to a file to produce a report. Then the user prints this file. Someone else wrote this program and I have taken it over. He has written it using VB.NET, but wrote it like it is VB6. The program is like a report writer. The user wants some page breaks. I tried it put in a f...more >>

What method can I call to terminate my Forms-based application and give control back to the system? ...more >>

I want to display data from a database as labels on a form without using = a datagrid. My problem is that I can't make the labels at design time because the = amount of data is variable. It should look a bit like this: John 1/8/1970 Edit Remove Peter 8/2/1972 Edit Remove ...more >>

I have tracked this down in reflector and SOS (Son of Strike) and know what is going on but wanted an explanation. Copy this code into a windows forms app and enable the timer with a Interval set to 10. public partial class Form1 : Form { SolidBrush _brush; public For...more >>

Hi, I have a user control which has a text box and button on it. I'm trying to have the same code fire when the user presses Enter in the text box as would have if the user clicked the button. The control is on a form which has acceptButton defined. The problem is that when I press enter,...more >>

Hi all, I am trying to use a variable which retrieves an object name, such as string objObject = databaseobject("Fieldname") and using the objObject to refer to a object, such as a button, textbox or form within the current form and changing stuffs like objObject.text = "b...more >>

We have an application written in VB6 which performs a lot of different functionality for a helpdesk (create orders, create invoices, manage employees, etc). It's written as an MDI application. Nearly everything I see says MDI is really not a great design choice and I somewhat agree with that....more >>

Really like using Win Forms with C#. C# is nice to use. I also like C++ but found MFC and Dialog based apps a bit more tricky to use. C# + Win Forms is a nice combo I think....more >>

I am trying to change the form icon of a C# windows application.I am using the Visual Studio .NET 2003 IDE. I have modified the icon using the icon editor available in Visual Studio .NET IDE. After saving my changes, when I try to update the Icon property of the main form , the icon image appe...more >>

Here's a scenario: A Business class raises an event, which is handled by a custom WinForms UserControl. When the control is removed from the containing Form/Panel, it is not GCed because the Business class retains a pointer to the event handler delegate in the UserControl. Is there anyway, ...more >>

Hi, I am receiving objects in form of eventArguments through very frequent events from some external source. Better to say that we need to handle the flood of events, and process the object received from each event as soon as possible and wait for the new events. Right now I keep on addi...more >>

Hi I have a very strange problem about my Key Press event never get fired in the VS2005. I have a parent form and a user control. In my user control, I add two text box. I also set two hot key for this two textbox. What I want to do is when the user press the hot key(eg, Alt+E) then the spec...more >>