[Solved] Bug found? Ajax select url is null

[Patrik]

Hello!

I use this:

@using ManageMvc.Areas.Community.Models
@using Telerik.Web.Mvc.UI
@model CommunityHelpdeskListViewPage
@{
    ViewBag.Title = "Community Helpdesk";
    Layout = "~/Views/Shared/TabsLayout.cshtml";
}

List with users:<br/>

@(Html.Telerik().Grid(Model.CommunityUserList)
        .Name("OrdersGrid")
        .Columns(columns =>
        {
            columns.AutoGenerate(true);
            //columns.Bound(o => o.CountryName);
            //columns.Bound(o => o.Id);
        })
        .DataBinding(dataBinding => dataBinding.Ajax().Select("GetUserList", "Helpdesk", new { Search = Model.SearchString, Area = "Community" }))
        .EnableCustomBinding(true)
        .Pageable(paging => paging.PageSize(10))
        .Filterable()
        .Sortable())

This returns the following javascript:

<script type="text/javascript">

//<![CDATA[

jQuery(document).ready(function(){

jQuery('#OrdersGrid').tGrid({columns:[{"title":"Firstname","member":"Firstname","type":"String"},{"title":"Surname","member":"Surname","type":"String"},{"title":"Country","member":"CountryName","type":"String"}], plugins:["filtering"], total:0, currentPage:1, pageSizesInDropDown:["5","10","20","50"], sortMode:'single', ajax:{"selectUrl":null}, noRecordsTemplate:'No records to display.'});});

//]]>

</script>

As you can see, the ajax url is a null?
Everything else works, the columns are created like they should.

[Atanas Korchev]

Hello Patrik,

This could happen if the route is invalid for some reason (controller + action + area + arguments). Is there a chance to attach a sample project which shows this problem?

Regards,
Atanas Korchev
the Telerik team

[Patrik]

Hallo Atanas,

Ok, i looked over the routes and added a specific grid route. This is the new route:
(This is from the following file, Areas->Community->CommunityAreaRegistration.cs)

// Create a route for the telerik grid.
context.MapRoute(
    "Community_telerik",
    "Community/Helpdesk/{action}/{command}/{parameter}",
    new { action = "GetUserList", controller = "Helpdesk", command = UrlParameter.Optional, parameter = UrlParameter.Optional },
    new { action = "GetUserList|GetUserPosts" }
);

However it is still generating a null call to the select statement. This is the razor syntax:

@(Html.Telerik().Grid(Model.CommunityUserList)
        .Name("OrdersGrid")
        .Columns(columns => columns.AutoGenerate(true))
        .DataBinding(dataBinding => dataBinding.Ajax().Select("GetUserList", "Helpdesk", new { Area = "Community", Search = Model.SearchString }))
        .EnableCustomBinding(true)
        .Pageable(paging => paging.Total(100).PageSize(10))
        .Filterable()
        .Sortable())

I have also tried to create a routevaluedictionary,

.DataBinding(dataBinding => dataBinding.Ajax().Select(new RouteValueDictionary{{"Action","GetUserList"},{"Controller","Helpdesk"},{"Area","Community"},{"Search",Model.SearchString}}))

The project is way to big to send. I can try to create a new project and see if i can reproduce this.

[Patrik]

Ok, i have created a new project and i get the same error. I have uploaded the project as an attachment.
To test it, run it in visual studio and in the browser type in the following:

http://localhost.... /Community/Helpdesk

[Georgi Krustev]

Hello Patrik,

 
Thank you for the test project.

After further investigation we noticed that the UrlHelper.Action returns null,  because of the "Community_default" route.Grid, internally uses UrlHelper in order to generate correct URLs. After modifying the route, everything starts to work fine. I have attached the modified test project. Check CommunityAreaRegistration.cs file.

Regards,
Georgi Krustev
the Telerik team

[Patrik]

Hello,

Yea i see now. I changed the telerik route to this instead:

context.MapRoute(
                "Community_telerik",
                "Community/Helpdesk/{action}/{parameter1}",
                new { action = "Index", controller = "Helpdesk", parameter1 = UrlParameter.Optional },
                new { action = "GetUserList|GetUserPosts" }
            );

and now its working as intended. The command parameter that i had previously was not needed for the url postback from my telerik grid.

A suggestion from my point of view would be to define a more cleaner error message, like Invalid Route.

Thank you

Regards
Patrik