public void AdControl_OnErrorOccurred(object sender, AdErrorEventArgs e)
{
Console.WriteLine("Error " + e.ErrorCode.ToString() + " on AdId: " + ((AdControl) sender).AdUnitId +
":: " + e.Error.Message);
MessageBox.Show(e.Error.Message ,"Error "+ e.ErrorCode.ToString() + " on AdId: " + ((AdControl)sender).AdUnitId, MessageBoxButton.OK);
}