How to capture Mouse and Key events when the text box cell is in an active edit state in WinForms GridControl?
TextBox cell events
The embedded WinForms GridControl gets the mouse actions when the text box is active. You can subscribe to the embedded textbox's events that are inside a cell by accessing it by using the cell's renderer.
Refer to the following code examples.
// Creates a text box cell renderer object.
GridTextBoxCellRenderer textBoxCellRenderer = (GridTextBoxCellRenderer)this.gridControl1.CellRenderers["TextBox"];
//Invokes the MouseDown and KeyUp events of the text box
textBoxCellRenderer.TextBox.MouseDown += new MouseEventHandler(textbox_MouseDown);
textBoxCellRenderer.TextBox.KeyUp += new System.Windows.Forms.KeyEventHandler(this.textBox_KeyUp);
private void textbox_MouseDown(object sender, MouseEventArgs e)
{
//Writes the MouseDown action
Trace.WriteLine("textbox_MouseDown");
}
private void textBox_KeyUp(object sender, System.Windows.Forms.KeyEventArgs e)
{
//Writes the KeyUp event
Trace.WriteLine("textBox_KeyUp");
} 'Creates a text box cell renderer object.
Private textBoxCellRenderer As GridTextBoxCellRenderer = CType(Me.gridControl1.CellRenderers("TextBox"), GridTextBoxCellRenderer)
'Invokes the MouseDown and KeyUp events of the text box
AddHandler textBoxCellRenderer.TextBox.MouseDown, AddressOf textbox_MouseDown
AddHandler textBoxCellRenderer.TextBox.KeyUp, AddressOf textBox_KeyUp
Private Sub textbox_MouseDown(ByVal sender As Object, ByVal e As MouseEventArgs)
'Writes the MouseDown action
Trace.WriteLine("textbox_MouseDown")
End Sub
Private Sub textBox_KeyUp(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyEventArgs)
'Writes the KeyUp event
Trace.WriteLine("textBox_KeyUp")
End SubScreenshots below illustrate the TextBox Cell Events.
Figure 1: TextBox cell event trace in grid control.
Figure 2: The traced events list in the text box cell.
Samples:
