public void SearchQuantiy()
{
int stateid = int.Parse(cmbState.SelectedValue.ToString());
int brandid = int.Parse(cmbBrand.SelectedValue.ToString());
int areaid = int.Parse(cmbArea.SelectedValue.ToString());
int groupid = int.Parse(cmbGroup.SelectedValue.ToString());
cr.LoadHomeModelQuantity(stateid.ToString(), areaid.ToString(), groupid.ToString(), brandid.ToString());
dataGrid1.DataContext = cr.HomeModelQty;
}