I am trying to show a context menu on a right click in some of my
controls. I want to show it at the right location. However it is
getting shown away from the mouse click location. Here is the code:
       private void QueryTreeView_Clicked(object sender, EventArgs

I have a control which has a collection property.
when an item of the collection property will be added, removed, and so
on, i would like to refresh the control itself.
Usually for that i use eventhandler in the set method of the property.

I am using vb.net 2005.
I want to allow only numeric entries (or in some cases alpha only) into a
text box. Preferrably I would like to use the keypress event of the text box
to trap keys as they are entering the data rather than validate after the

Twice now controls have dissappeard from design surface.  Code is still
there, but controls don't show.  Everything is compiling fine.  Don't see
reason.  Real deal breaker!
Thanks,

I have a MonthCalendar Control on my form, that the user can drag
objects onto.
AllowDrop is set to true and I recive the DragDrop Event.
Is there a way to find out what day in the Calendar the user draged

I ran into a problem with the SplitterContainer and the TabControl in VS
2005 SP1.
Put a splitcontainer on a new form with a tabcontrol in each half, with dock
set to fill each. Run it and then move the splitter so the righthand panel

I am using VS 2003 and .NET 1.1 for my Windows Form project, which is being
written with C#.  We may upgrade to VS 2005 and .NET 2.0 in the near future.
I am trying to create a control that can be re-used by other developers to
add their own controls like Buttons and TextBoxes ...

I noticed that when I change data in control bount to datatable column and
press Save button, data is not saved.
The problem is that pressing a ToolBar button does not cause the
ActiveControl to lose focus (same with menu items), thus not forcing the

This should be so easy, but for some reason it is very difficult.
I have seen several answers to this, but have not been able to implement
them.
I have a datagrid on a windows form in C#.  One of the fields is either a 1

Is it possible to adjust the width of the vertical scrollbar in a listview
control?
Thanks.

I'm creating C#  Winforms application.
I need to enter part names but store part ids in orders table.
I set Combobox Datasource to parts table.
Since parts table is very big, it takes a lot of time to load the data

We implemented our own user control with a public collection property and
set DesignerSerializationVisibility.Content. When we alter the contents of
the collection with our custom editor deriving from UITypeEditor, the
contents of the collection are serialized only if we edit some ...

I have unfortunately discovered a very bad GDI Objects leak in the
DataGridView control when binding to a DataView DataSource that uses a
RowFilter to show/hide some rows. At first I thought it was code that I was
writing to customize columns, but I have been able to reproduce it ...

I have a simple User Control as written above.
I have implemented this User Control several times in a Form.
The Events Enter or Leaves works fine, but the Event KeyDown is not
being fired. I need to open a new Form with a Shortcut (CTRL+T), if this

On my form with background color GhostWhite I have placed a GroupBox
containing several radio buttons.
When I disable the complete GroupBox, the text of the radio buttons is
displayed in dark blue. I want it to be grayed out, though.