[RESOLVED] DataGridView.ContextMenuStrip Property Blocks CellMouseClick Event?

If you assign a ContextMenuStrip to the DataGridView.ContextMenuStrip property and then right-click a cell, the CellMouseClick event doesn't fire. Why would the ContextMenuStrip block this event from occurring? What's the reasoning?

My workaround at the moment is to separate the ContextMenuStrip from the DataGridView and show it with code, but this seems unnecessary.

Quote:

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Originally Posted by ForumAccount

If you assign a ContextMenuStrip to the DataGridView.ContextMenuStrip property and then right-click a cell, the CellMouseClick event doesn't fire. Why would the ContextMenuStrip block this event from occurring? What's the reasoning?

My workaround at the moment is to separate the ContextMenuStrip from the DataGridView and show it with code, but this seems unnecessary.

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Have you used mousedown event. i still often use contextmenu in datagridview.

or you can use:

Code:

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Private Sub Userdatagridview_CellContentClick(ByVal sender As System.Object, ByVal e As System.Windows.Forms.MouseEventArgs) Handles Userdatagridview.Click
        If e.Button = Windows.Forms.MouseButtons.Right Then
            ContextMenuStrip1.Show(Windows.Forms.Cursor.Position.X, Windows.Forms.Cursor.Position.Y)
        End If
    End Sub

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The workaround is fine, but what you really need to understand is that you are setting a context menu for the actual datagridview, and you can also set context menu objects for rows, or even individual cells..

These are valid

Code:

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DataGridView1.Rows(x).ContextMenuStrip = SomeMenuStrip
DataGridView1.Rows(x).Cells(x).ContextMenuStrip = SomeMenuStrip

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However that doesn't really help with your specific situation of wanting CellMouseClick to fire. So it really depends on what you want to do when the user right clicks on a cell. There are events you can use.

For example, this code would highlight whatever row i right click on (deselecting any other row) and show a contextmenu. This is without ever actually assigning the context menu to the datagridview at design time.

Code:

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    Private Sub DataGridView1_CellContextMenuStripNeeded(ByVal sender As Object, ByVal e As System.Windows.Forms.DataGridViewCellContextMenuStripNeededEventArgs) Handles DataGridView1.CellContextMenuStripNeeded

        DataGridView1.ClearSelection()
        DataGridView1.Rows(e.RowIndex).Selected = True
        e.ContextMenuStrip = ContextMenuStrip1

    End Sub

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Ocourse this doesn't fire the CellMouseClick, but it is an indication to you as the developer that this is happening, so you can perform whatever code you would want to run in this situation into this event, or for easier maintenance, a common routine you can call from both events.

I reactivate this thread because the ContextMenuStrip does not work if we are you are in edit mode.
In a cell in edit mode if you do a right click with the mouse, you don't go on ContextMenuStrip, but you will see a standard menu with cut/paste/copy.

It is OK if you do a right click in other cell than the cell in edit mode.

Thanks for a solution.

Dominique

I found a solution.

Code:

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  Private Sub DataGridView1_EditingControlShowing(ByVal sender As System.Object, _
                        ByVal e As DataGridViewEditingControlShowingEventArgs) _
                        Handles DataGridView1.EditingControlShowing
    If TypeOf e.Control Is TextBox Then
      With DirectCast(e.Control, TextBox)
        .ContextMenuStrip = ContextMenuStrip2
      End With
    End If
  End Sub

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I found that at :
http://social.msdn.microsoft.com/for...-c2206739c8fe/
and
http://stackoverflow.com/questions/2...-in-a-datagrid

In the second link, the guy asked how to merge the two ContextMenuStrip (our specific and the standard).
It is a good question. If any people have an answer, it will be good.