private void cboCiudad_SelectedIndexChanged(object sender, Telerik.WinControls.UI.Data.PositionChangedEventArgs e) { oCatalogos = new WCF_Catalogos.Hersan_CatalogosClient(); try { if (cboCiudad.SelectedValue != null) { oColonia = oCatalogos.ABCColonias_Obtener(int.Parse(cboEstado.SelectedValue.ToString()), int.Parse(cboCiudad.SelectedValue.ToString())); cboColonia.ValueMember = "Id"; cboColonia.DisplayMember = "Nombre"; cboColonia.DataSource = oColonia; } } catch (Exception ex) { throw ex; } finally { oCatalogos = null; } }