Controls with ContextMenuStrip

Question

I am using VS2012, C#, Winforms.

My application generates about 100 label controls at runtime. I want the user to right-click on a label control, bring up a context menu strip. I have this part working. But I am having trouble determining which control is being clicked on when I try to respond to a the context menu item click event. How can I pass on the control to the menu item click event?

I am using this code to determine the source control but it always causes a null exception:

private void contextMenuStrip1_Opening(object sender, CancelEventArgs e)
 {
     Control sourceControl = new Control();
     sourceControl = contextMenuStrip1.SourceControl;

     MessageBox.Show(sourceControl.Text);
 }

sourceControl always get a null from contextMenuStrip1.SourceControl;

http://msdn.microsoft.com/en-us/library/system.windows.forms.contextmenustrip.sourcecontrol%28v=vs.110%29.aspx — Hans Passant, Apr 18 '14 at 01:20

score 0 · Answer 1 · edited May 23 '17 at 12:28

0

The SourceControl property can be null, as this property is best used during the opening event. There are a couple of workarounds available. Check these two out on StackOverflow:

ContextMenuStrip.Owner Property null When Retrieving From Nested ToolStripMenuItem

Get the SourceControl of my ContextMenuStrip when I use the shortcut key

edited May 23 '17 at 12:28

Community

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answered Apr 18 '14 at 03:15

Chris Barlow

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Controls with ContextMenuStrip

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