状态，撤单

RMYY_CallCenter_Api/Controllers/CarManage/T_Car_WorkOrderController.cs

                                     true,
                                     out recordCount
                                     );
+                if (data != null && data.Rows.Count > 0)
+                {
+                    data.Columns.Add("Buttons", typeof(object));
+                    foreach (DataRow it in data.Rows)
+                    {
+                        switch (it["F_State"].ToString())
+                        {
+                            case "0":
+                                it["StateName"] = "待接单";
+                                break;
+                              case "2":
+                                it["StateName"] = "已接单";
+                                break;
+                              case "4":
+                                it["StateName"] = "处理中";
+                                break;
+                                     case "10":
+                                it["StateName"] = "已完成";
+                                break;
+                        }
+                            
+                      GetDescriptionOriginal(it ["F_State"].ToString());
+                    }
+                }
                 var obj = new
                 {
                     state = "success",
                 var model = orderbll.GetModel(orderid);
                 if (model !=null )
                 {
+                    if (model.F_State  !=0)
+                    {
+                        return Error("工单已分配，不可撤单");
+                    }
                     string deptname = "";
                     var deptmodel = deptbll.GetModel(User.F_DeptId);
                     if (deptmodel != null)