private int _SaveUpdateMapping(int classAdminId) { int result = 0; try { objSchoolAdmin.DeleteAllSchoolsOfClassAdmin(Convert.ToInt32(classAdminId)); foreach (GridViewRow lRow in grdClasses.Rows) { int schoolId = Convert.ToInt32(grdClasses.DataKeys[lRow.RowIndex]["SchoolId"].ToString()); string classIdList = grdClasses.DataKeys[lRow.RowIndex]["ClassIds"].ToString(); objSchoolAdmin.SaveClassAdminMapping(Convert.ToInt32(classAdminId), schoolId, classIdList); } return(result); } catch (Exception ex) { return(result); } }