Jtable Fehler beim Löschen

Question

Dies war mein erster Versuch zu Jtable. Und alles funktioniert gut, außer der Löschoption. Sein gibt einen Fehler:

"Error occurred while communicating to the server"

<script> 
$(document).ready(function() { 
      $("#department_v").jtable({ 
       title: 'Department Entry', 
       selecting: true, //Enable selecting 
       multiselect: true, //Allow multiple selecting 
       selectingCheckboxes: true, //Show checkboxes on first column 

       paging: true, //Enables paging 
       pageSize: 10, //Actually this is not needed since default value is 10. 
       sorting: true, //Enables sorting 
       defaultSorting: 'id ASC', //Optional. Default sorting on first load. 
       actions: 
       { 

        listAction: '/frmAdmin.aspx/DepartmentList', 
        deleteAction: '/frmAdmin.aspx/DeleteDepartment', 
        createAction: '/frmAdmin.aspx/CreateNewDepartment', 
        updateAction: '/frmAdmin.aspx/UpdateDepartment', 


       }, 
       fields: 
       { 
        id: 
        { 
         title: 'id', 
         key: true, 
         list: true, 
         edit: false 

        }, 
        Dept_Name: 
        { 
         title: 'DepartmentName', 
         width: '13%' 
        }, 



       }, 



       formCreated: function (event, data) { 
        data.form.find('input[name="Dept_Name"]').addClass('validate[required]'); 

        data.form.validationEngine(); 
       }, 

       formSubmitting: function (event, data) { 
        return data.form.validationEngine('validate'); 
       }, 

       formClosed: function (event, data) { 
        data.form.validationEngine('hide'); 
        data.form.validationEngine('detach'); 
       } 




      }); 

      $('#department_v').jtable('load'); 
     }); 
    </script> 

[WebMethod(EnableSession = true)] 
    public static object DepartmentList(int jtStartIndex, int jtPageSize, string jtSorting) 
    { 
     try 
     { 
      //Get data from database 
      using (var db = new HRISDBEntities()) 
      { 
       var DepartmentResult = (from DepartmentList in db.tbl_Department select DepartmentList).ToList(); 
       if (DepartmentResult.Count != 0) 
        return new { Result = "OK", Records = DepartmentResult }; 
       else return 0; 
      } 
     } 
     catch (Exception ex) 
     { 
      return new { Result = "ERROR Reading Database", Message = ex.Message }; 
     } 

    } 


    [WebMethod(EnableSession = true)] 
    public static object CreateNewDepartment(Department record) 
    { 
     try 
     { 
      using (var db = new HRISDBEntities()) 
      { 
       var newTblMember = new tbl_Department 
       { 
        Dept_Name = record.Dept_Name 

       }; 
       var NewEmpAdd = db.tbl_Department.Add(newTblMember); 
       db.SaveChanges(); 
       return new { Result = "OK", Records = NewEmpAdd }; 
      } 
     } 
     catch (Exception ex) 
     { 
      return new { Result = "ERROR", Message = ex.Message }; 
     } 
    } 




    [WebMethod(EnableSession = true)] 
    public static object DeleteDepartment(int record) 
    { 
     try 
     { 

      using (HRISDBEntities db = new HRISDBEntities()) 
      { 
       var deletedmember = db.tbl_Department.First(e => e.id == record); 
       db.tbl_Department.Remove(deletedmember); 
       db.SaveChanges(); 
       return new { Result = "OK" }; 

      } 
     } 
     catch (Exception ex) 
     { 
      return new { Result = "ERROR", Message = ex.Message }; 
     } 

    } 



    [WebMethod(EnableSession = true)] 
    public static object UpdateDepartment(Department record) 
    { 
     try 
     { 
      int memid = record.id; 
      using (HRISDBEntities db = new HRISDBEntities()) 
      { 
       var updateuser = (from member in db.tbl_Department 
            where (member.id == memid) 
            select member).FirstOrDefault(); 
       updateuser.Dept_Name = record.Dept_Name; 

       db.tbl_Department.Attach(updateuser); 
       var entry = db.Entry(updateuser); 
       entry.Property(e => e.Dept_Name).IsModified = true; 

       db.SaveChanges(); 
       return new { Result = "OK", }; 
      } 
     } 
     catch (Exception ex) 
     { 
      return new { Result = "ERROR", Message = ex.Message }; 
     } 
    } 

bekommt folgende Fehler

Ich verwende 6.x Entity Framework

Dank!

Answer 1

In Löschmethode muß ich die Parameter wie id Arbeits FI9

aktualisierte Code

[WebMethod(EnableSession = true)] 
    public static object DeleteDepartment(int id) 
    { 
     try 
     { 

      using (HRISDBEntities db = new HRISDBEntities()) 
      { 
       var deletedmember = db.tbl_Department.First(e => e.id == id); 
       db.tbl_Department.Remove(deletedmember); 
       db.SaveChanges(); 
       return new { Result = "OK" }; 

      } 
     } 
     catch (Exception ex) 
     { 
      return new { Result = "ERROR", Message = ex.Message }; 
     } 

    } 

Nach dieser Löschoption zu übergeben.

danke. hoffe, dass es anderen hilft.