public override void DetachEditingControl()
{
DataGridView dataGridView = base.DataGridView;
if ((dataGridView == null) || (dataGridView.EditingControl == null))
{
throw new InvalidOperationException();
}
MaskedTextBox editingControl = dataGridView.EditingControl as MaskedTextBox;
if (editingControl != null)
{
editingControl.ClearUndo();
}
base.DetachEditingControl();
}
public override void DetachEditingControl()
{
DataGridView dataGridView = base.DataGridView;
if (dataGridView == null || dataGridView.EditingControl == null)
{
throw new InvalidOperationException();
}
MaskedTextBox maskedTextBox = dataGridView.EditingControl as MaskedTextBox;
if (maskedTextBox != null)
{
maskedTextBox.ClearUndo();
}
base.DetachEditingControl();
}
public void UndoTest()
{
MaskedTextBox mtb;
mtb = new MaskedTextBox();
mtb.Text = "abcdef";
Assert.AreEqual(false, mtb.CanUndo, "#A0-c");
mtb.Undo();
Assert.AreEqual("abcdef", mtb.Text, "#A1");
Assert.AreEqual(false, mtb.CanUndo, "#A1-c");
mtb.Text = "cdef";
mtb.ClearUndo();
Assert.AreEqual("cdef", mtb.Text, "#A2");
Assert.AreEqual(false, mtb.CanUndo, "#A2-c");
mtb.Dispose();
}