private void StokFilterControl_FilterChanged(object sender, FilterChangedEventArgs e)
        {
            int a = e.ToString().IndexOf("Value", 0, e.ToString().Length - 1);

            if (a != -1)
            {
                StokFilterControl.ApplyFilter();
            }
        }
 private void btnStokFiltreIptal_Click(object sender, EventArgs e)
 {
     StokFilterControl.FilterString = null;
     StokFilterControl.ApplyFilter();
 }
 private void btnStokFiltre_Click(object sender, EventArgs e)
 {
     StokFilterControl.ApplyFilter();
 }