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4 answers
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I want to persist what child detail grid is open on return to the page. I tried using the localstorage example

var options = kendo.stringify(grid.getOptions())
     localStorage.setItem("kendo-grid-options", options);

but this does not seem to keep the open expanded row details.

Is there an event that fires when oi expand a row, then maybe I could use that to record the row number and expand using js when page is loaded, thanks

Dimiter Madjarov
Telerik team
 answered on 17 Aug 2015
2 answers
99 views

I have very large data sets I want to display in a grid, and I'd like to use the auto filtering on the column header.  But with my large data sets, users will typically want to specify a few filters before getting their data, otherwise the retrieval of the records from the database takes a very long time.

It seems that by default, each filter in the grid is applied immediately.  I'd like to allow the user to select multiple filters, and then push a button to trigger the refresh.

Is there a good way to skip the automatic refresh that comes with setting a filter in the grid header?

 

Brian
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 answered on 14 Aug 2015
2 answers
91 views

Hi

I have installed a trial version to have a play around with the Scheduler control.

I have put together a basic ​page, but have a problem when attempting to edit an event.  After double clicking on the event, the event dialog opens. Then, whenever I hit Cancel or the close (X) button, I get the following error:

 Unhandled exception at line 10, column 30735 in kendo.all.min.js

Javascript runtime error: unable to get property 'uid' of undefined or null reference.

The Save button works fine. 

 I am using Kendo.Mvc.dll 2015.2.805.545, and Visual Studio 2013.

 Any ideas on why this is failing?

Cheers, Jarrod

Jarrod
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 answered on 14 Aug 2015
8 answers
166 views
Hello,

like the title reveals, I need to display data, that is updated irregularly, but at least once every few seconds.

Is it possible to bind the Chart to a SignalR hub, like it is for the grid? (http://demos.telerik.com/aspnet-mvc/grid/signalr)
Which other approaches promise good and efficient results? Polling of WebAPI? A separat SignalR function and adding data to chart on client side?

Thank you in advance.
Robert
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 answered on 14 Aug 2015
1 answer
76 views

Hi

 Please may we have a similar "Navigator" feature as in the Stock chart, for the Scatter chart.

 At least where the X axis is time.

 This would be of great benefit.

 Alternatively how may we customise using two sliders a similar feature.

 Kind Regards

David

Iliana Dyankova
Telerik team
 answered on 14 Aug 2015
1 answer
445 views

Hello,

 I have been trying to figure out how to set value of my multiSelect after server filtering and adding some conditions so that some elements cannot be deleted.  The multiselect works fine *as long* as the user uses the mouse to select elements to add. Once the user decides to filter by using the keyboard the multiselect does not render the added item correctly even though the values i set to them are correct.Here is my code:

Edit.cshtml:

   @Html.Kendo().MultiSelect().Name("msGroupMembers").DataTextField("FullName").DataValueField("Id").Value(new[] { new { FullName = Model.SelectedTO.Select(x => x.Text), Id = Model.SelectedTO.Select(x => x.Value) } }).Filter(FilterType.Contains).Events(e => e.Change("onChangeEdit").Close("onCloseEdit").Select("onSelect")).DataSource(source => source
                        .Custom()
                        .Transport(transport => transport
                        .Read(read =>
                        {
                            read.Action("GetGroupMembers", "ScheduleRequest")
                            .Data("testOfficerFiltering");
                        }))
                        .ServerFiltering(true)).HtmlAttributes(new { required = "required" })

 Controller:

  public ActionResult SetGroupMembers(List<int> items, string teamLead)
        {
            Business.Entities.RTSSUser user = userService.GetRTSSUser(User.Identity.Name);

            // check to see if we have a lead.
            int lead;
            bool result = int.TryParse(teamLead, out lead);
            if (!result)
            {
                lead = -1;
            }

            try
            {
                int findLead = items.FindIndex(s => s == lead);
                int findOwner = items.FindIndex(s => s == user.Person.Id);

                //if our owner is also the lead, place in first spot
                if (findLead == findOwner && findOwner == -1)
                {
                    items.Insert(0, user.Person.Id);
                }

                else if (findLead == -1)
                {
                    items.Insert(1, lead);
                }

                else if (findOwner == -1)
                {
                    items.Insert(0, user.Person.Id);
                }

            }
            catch (Exception e)
            {
                // handle an empty list passed.
                List<int> msUsers = new List<int>();
                msUsers.Insert(0, user.Person.Id);
                return Json(msUsers, JsonRequestBehavior.AllowGet);
            }
           
            
            return Json(items, JsonRequestBehavior.AllowGet);
        }​

Javascript:
function onChangeEdit(e) {
   
    var lead = $("#cbTeamLeadName").data("kendoComboBox").value();

    var msValue = this.value();
    var arrayLength = msValue.length;
    var newArrayValue = new Array();

    //store values into array
    for (var i = 0; i < arrayLength; i++) {
        newArrayValue.push(msValue[i]);
        console.log(msValue[i]);
    }    

    //get owner
    $.ajax({
        type: 'GET',
        url: SetGroupMembersUrl,
        data: {
            "items": newArrayValue,
            "teamLead": lead
        },
        contentType: 'application/json',
        async: true,
        cache: false,
        dataType: 'json',
        traditional: true,
        success: function (data) {          
            populateMs(data);
         
        },        
        error: function () {
            console.log("Could not get AgencyName");
        }
    });
    
}

 
function populateMs(e) {
    var multiSelect = $("#msGroupMembers").data("kendoMultiSelect");
    multiSelect.dataSource.filter({});
    multiSelect.value([])
    multiSelect.refresh();
    multiSelect.value(e);
    alert("Dat: " + e);
}

I have found this similar thread: http://stackoverflow.com/questions/22010796/kendo-multiselect-value-setting-bug and was wondering if it is a bug or if i am doing something wrong. Thanks in advance!

Daniel
Telerik team
 answered on 13 Aug 2015
3 answers
1.1K+ views
Hi,

I'm trying to bind a Kendo.Dropdownlist to an enum in MVC but cant seem to get it working. It binds OK to get the values but when I change the value its not reflected in the ViewModel. I have attached two screenshots of my editor template (one working and one not). The one that works use the built in EnumDropdownListFor but this doesn't have the styling like the Kendo UI. Any ideas how i can get the Kendo dropdown to work?

@model CapType

@{
    var enumItems = EnumHelper.GetSelectList(typeof(CapType));

    var options = new SelectList(enumItems, "Value", "Text", Model);
}

@(Html.Kendo().DropDownListFor(m => Model)
              .Name("eCapType")
      .BindTo(options))
Jason
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 answered on 13 Aug 2015
1 answer
196 views
Hi,
i've created a sample Application for the Grid with ASP.NET SignalR having real-time updates 

http://webapps-in-action.com/post/Telerik-Kendo-UI-Grid-Updating-Stock-Data-with-SignalR-in-ASPNET-MVC4

Greetings Otto
Nathan
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 answered on 13 Aug 2015
2 answers
266 views

I have been looking at the datepicker mask example at

http://docs.telerik.com/kendo-ui/aspnet-mvc/helpers/datepicker/how-to/masked-date-picker-grid

Is this solution valid for MVC wrappers also?

I have included the code but still no mask.

Thanks

 

 

 
Alan Mosley
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 answered on 13 Aug 2015
6 answers
873 views

I have a simple grid w/ ajax binding and some nested grids, all i want to do is have an inline edit for one field and set the other 2 to readonly.  One of the fields is a bool and when i set Editable(false) in the datasource model i get an exception saying that the value passed to the dictionary is null but with Editable(true) or no Editable call it works fine.  The RequireAll bool shouldnt be changeable in this grid, its just there for reference.  

 

@(Html.Kendo().Grid<ScheduleQual>().BindTo(Model.Quals)
          .Name("grid")
          .Columns(columns =>
          {
              columns.Bound(p => p.Qual.Name).Title("Name");
              columns.Bound(p => p.Id).Hidden();
              columns.Bound(p => p.Qual.RequireAll);
              columns.Bound(p => p.Required);
          })
          .Editable(editable => editable.Mode(GridEditMode.InCell))
          .Pageable()
          .Sortable()
          .ClientDetailTemplateId("template")
          .Scrollable(scr => scr.Height(430))
          .DataSource(dataSource => dataSource
              .Ajax()
              .Batch(true)
              .PageSize(20)
              .Model(model =>
              {
                  model.Id(p => p.Id);
                  model.Field(p => p.Qual.Name).Editable(false);
                  model.Field(p => p.Qual.RequireAll);//this is the field i want to make readonly
                  model.Field(p => p.Required).DefaultValue(0).Editable(true);
              })
              .Read(read => read.Action("HierarchyBinding_Quals", "Scheduling"))
           )
          .Events(events => events.DataBound("dataBound"))
              )

Maybe i'm just doing something wrong, i just started using these controls.  

 

As a side note i've noticed that sometimes the RequireAll column renders as 'true'  or 'false' and sometimes with a green icon that says Yes.  is it possible to force the icon style to display when readonly instead of the true false?

 

John

Alexander Popov
Telerik team
 answered on 13 Aug 2015
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