private void viewSupplies_FocusedRowChanged(object sender, DevExpress.XtraGrid.Views.Base.FocusedRowChangedEventArgs e)
 {
     DataRow dr = viewSupplies.GetFocusedDataRow();
     if (dr != null)
     {
         int selected = Convert.ToInt32(dr["ID"]);
         Supplier sup = new Supplier();
         sup.LoadByPrimaryKey(selected);
         txtCompanyName.Text = sup.CompanyName;
          txtAddress.Text = sup.Address;
         txtContactPerson.Text = sup.ContactPerson;
         txtMobile.Text = sup.Mobile;
         txtTelephone.Text = sup.Telephone;
         txtEmail.Text = sup.Email;
         ckIsActive.Checked = sup.IsColumnNull("IsActive")?false: sup.IsActive;
         _supplierId = sup.ID;
         cboCompanyInfo.SelectedItem = sup.CompanyInfo;
         btnSupplierSave.Text = "Update";
     }
 }