I have a dataset containing 1 table with 1 column and I want to put the
values of each row in a combobox.
I've tried this:
Me.cbSitenummers.DataSource = dsShow.Tables(0)

where can i find a UML class diagram for the .NET framework, especially
windows.forms namespace?

I'm trying to move a picure box from the form into a
group box an i would like to use the standard drag&drop
functions (AllowDrop=true, MouseDown, DragEnter, DragDrop ...).
The data seems to be saved as an IDataObject.

How do I filter keys in a control, derived from TextBox so that my text box accepts only numbers (or only the keys I want, for that matter). I wrote the following code
class CustomTextBox:TextBox
..
protected override OnKeyDown(KeyEventArgs e

Hi,  sorry to write the whole problem in a straight line...the "enter/ or return" key of the keypad doesnt work. i hv windows XP, proffesional laptop. whenever i restart my laptop, it works for some time about 15 to 30 minutes and then it just stops working. i dont know if its a ...

I am playing with Windows Forms and would like to know *if* there is a way
to take the standard System.Windows.Forms.TabControl and give it the same
look-and-feel of the Tab Controls in Excel (which enables you to navigate to
different spreadsheets)

I'm using the following to send mail from within apps....
Imports System.Web.Mail
Public Sub email(ByVal subject As String, ByVal msg As String, ByVal
whoFrom As String, _

Does anyone know why binding a class property to a textbox will not always working properly??
My program is now having 10 textbox and all textbox bind to corresponding object property.
Some of the textbox has set as readonly ...
The problem is the value of some object property will ...

Is there a way to determine which control on a form is in focus?

We are using the updater component and 99% of the process is running
smoothly, its that 1% thats killing me, here is our issue. Our
operations team runs the installer on the client machine, the
operations team has "admin" privs, the ops team then opens the

I've been tasked with writing a control for displaying previews from scan software we use. These are scans of plan drawings and are roughly 11000x8000, 1bpp CCITT compressed TIF graphics. I can used Image/Bitmap.FromFile to load them correctly, for display purposes I am creating ...

Is it possible to work with MDI, toolbars and tabbed forms?

I have an application where I need to allow runtime resizing and moving of controls. Does the .Net framework provide any facility for performing this feature or do I need to develop my own? I can use the drag/drop functionality to move the control. To perform the resizing would ...

I am writing an On-screen keyboard, similar to the one included in
windows 2k and XP.
The problem I am having is that I need my keyboard to never get the
focus, but still be able to process events such as mouse clicks.

Is it possible to make some DataGrid's column editable, while some others
not editable? Thanks.