MultiSelect will slect all in the box after first selection

[Allen]

Is there anyone know why the MultiSelect works fine for the first item. After first one select, it will not work properly( please see the screen shot). type a letter then all matched item will be selected. Click any one then the box will reset.

cshtml

      @(Html.Kendo().MultiSelect()
              .Name("Users")
              .DataTextField("FullUserInfo")
              .DataValueField("UserID")
              .Placeholder("Type Last Name or First Name")   
              .DataSource(source => {
                  source.Read(read =>
                  {
                      read.Action("GetFilterUser", "Method");
                  })
                  .ServerFiltering(true);
                })
            )

 

Controller

        [HttpGet]
        public JsonResult GetFilterUser(string text)
        {
           
            personList = (IEnumerable<UserListboxDataViewModel>)
                       dataService.GetAllPersonsforListBox();

            if (!string.IsNullOrEmpty(text))
            {
                personList = personList.Where(p =>
                    (p.FullUserInfo.Contains(text))).ToList();
            }

            return Json(personList, JsonRequestBehavior.AllowGet);
        }

[Allen]

I also have javascript below. If I comment out, this part, the multiselect box won't show anymore.

             <script>
               function onAdditionalData() {
                    return {
                        text: $("#Users").val()
                    };
                } 
            </script>

[Martin]

Hello, Allen,

I tested the provided code snippets in the attached project and they seem to behave as expected. Could you please modify the example so that I can observe the problem you are experiencing? I will then be happy to debug and see what is causing the problem.

Looking forward to your reply.

Regards,
Martin
Progress Telerik

[Allen]

Thanks Martin,
I fixed it. the reason that I got unexpected result is  the parameter in  DatavalueField('UserID") statement  is not right. After I replace "UserID" with "UserId", it works fine.