I add a null value to the DataTable that is the DataSource for my
ComboBoxes so the user has the option to null them out.  That code looks
like this: (typed from memory, so forgive any typos)
-----------------------------------------

I am trying to change the standard anchoring of a control from top,
left and get an error "Object type cannot be converted to
target type." when I do this via the Visual Studio IDE.
Doing it code works fine, but changing it via the IDE properties

Does the CheckedListBox support DisplayMember/ValueMember?  
I have been trying to use these properties with the CheckedListBox and they
are not working.  I see from Google that databinding is not supported on
this control.  Ok, fine.  I tried to work around this by using

I have a lot textbox in a windowsform to insert a new record into database,
after I save the curent values into database,
and the values is still in the windows form ,
I want this effort that

I have a situation where it would be nice to have NO cursor for a rich text box. How can i do this? I am doing in Visual C#. I have try for the text box, it seen great. But i set the property for Rich Text Box, it still have the blinking cursor. That is the problem. Can someone ...

I have an app that has a date time picker on it, the date that it
represents may or may not be needed (a Conveyance date) , i.e. the field
in the data base is blank.
If the conveyance date is set I want the DateTimePicker to display the

How do I get the scroll bar control to appear in the windows Xp style? If I
drag one onto the form it's the old type..
I've also noticed it's appearance changes when you have a tree view with a
scroll bar:

I've noticed that a lot of the controls lack some of the most obvious
properties in the 'properties' window.  For example, in the properties
window the LinkLabel has a Text property but not an address property; the
DataGrid has a DataSource property but neither the DataGrid nor ...

I have TabControl on which I add the Tabpages at run time. The Tabpage Text
is the decided at run time and also assigned to the ToolTipText property of
the Tabpage.(i have already set ShowToolTip property of the tabcontrol to
true).

Here is my error of the moment --> Value cannot be null, parameter name:
array
This happens during design time when i go to add the tabPage using the
collection editor.  Perhaps, the bigger issue is how does one setup to be

How to set up row number or column number in DataGrid ?
For example, i want grid to have 2 columns and 2 rows.
Also how to remove fixed column ?
Thank You

Like the title ,
switch(toolBar1.Buttons.IndexOf(e.Button))
  {
     case 0:

I have designed a user control which includes a top docked panel. I
have done some drawing on the top docked panel.
When I use it my application it works fine, unless I top dock any
control in my custom control. Child control in my custom control docks

I have a usercontrol based on datagrid.
Can someone tell me how to explicitly fire the CallCurrentCellChanged event?
thanks...

I have designed a custom control derived from UserControl which contains a
LinkLabel and a TextBox. If the user uses the TAB key to move the focus to my
custom control I want the TextBox to get the focus and not the LinkLabel.
Therefore I set the TabStop property of the LinkLabel ...