void insrt_findVideoCompleted(object sender, findVideoCompletedEventArgs e)
{
isVideoExist = e.Result;
if (isVideoExist)
{
vldSum.Errors.Clear();
vldSum.Errors.Add(vdVal);
}
}
void insrt_findVideoCompleted(object sender, findVideoCompletedEventArgs e)
{
throw new NotImplementedException();
}
