private void Arrow_MouseLeftButtonDown(object sender, MouseButtonEventArgs e)
{
CombBox.IsDropDownOpen = true;
if (CxOnOpen != null)
{
CxOnOpen.Invoke(this, e);
}
}
public event EventHandler CxOnOpen; //addEvent
private void CombBox_DropDownOpened(object sender, EventArgs e)
{
try
{
OldItem = CombBox.Items[CombBox.SelectedIndex];
}
catch (ArgumentOutOfRangeException)
{
OldItem = null;
}
if (CxOnOpen != null)
{
CxOnOpen.Invoke(this, e);
}
}