private void PopulateSType()
{
DataTable dtSType = new DataTable();
dtSType = VendorBL.PopulateSType();
cboSType.Properties.DataSource = dtSType;
cboSType.Properties.ForceInitialize();
cboSType.Properties.PopulateColumns();
cboSType.Properties.ValueMember = "ServiceTypeId";
cboSType.Properties.DisplayMember = "ServiceType";
cboSType.Properties.Columns["ServiceTypeId"].Visible = false;
cboSType.Properties.ShowHeader = false;
cboSType.Properties.ShowFooter = false;
cboSType.EditValue = 0;
}