[Solved] RowAction, Ajax and OnRowSelected problem

[Vit]

I am using Q1 beta, but not sure if problem exists in previous release.

This is part of my view:

    <%  Html.Telerik().Grid<ItemsModel>()
           .Name("Grid")
           .RowAction(row =>
               {
                   if (row.DataItem.ItemName== "Item1")
                       {
                               row.HtmlAttributes["style"] = "background:green;";
                       }
               })
           .DataKeys(keys => keys.Add(k => k.ItemId))
           .DataBinding(dataBinding =>
               dataBinding.Ajax()
               .Select("Items", "Items")
               .Columns(columns =>
               {
                   columns.Bound(c => c.ItemId).Hidden(true);
                   columns.Bound(c => c.ItemName).Width(90);
               })
           .Pageable()
           .Selectable()
           .ClientEvents(events => events.OnRowSelected("onRowSelected"))
           .Render();

        Html.Telerik().ScriptRegistrar()
            .Scripts(scripts =>
                scripts.AddGroup("CommonScript", group =>
                    group.Add("telerik.window.min.js")
                         .Add("telerik.draganddrop.min.js")))
            .OnDocumentReady(@"
function onRowSelected(e) {
   var id = e.row.cells[0].innerHTML;
   detailsWindow = $.telerik.window.create({
     name: 'detailsWindow', title: 'Items', modal: true, draggable: true, contentUrl: '/Items/Item/' + id,
     onClose: function (e) { e.preventDefault(); detailsWindow.data('tWindow').destroy(); }
   });
   detailsWindow.data('tWindow').center().open();
}");
    %>

It gives me this error on render at line 13:

Server Error in '/' Application.

  

Object reference not set to an instance of an object.

  

Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code. 

  

Exception Details: System.NullReferenceException: Object reference not set to an instance of an object.

  

Source Error: 

  

  

Line 11:            .RowAction(row =>

Line 12:                {

Line 13:                    if (row.DataItem.ItemName == "Item1")

Line 14:                    {

Line 15:                        row.HtmlAttributes["style"] = "background:green;";


If I change RowAction to this:

.RowAction(row =>
    {
            row.HtmlAttributes["style"] = "background:green;";
    })

then there is no error, but it makes background green for a split second while grid is rendering. After that - just regular colors from row selection.

Am I doing something wrong or RowAction does not work with OnRowSelect with Ajax binding?

[Rosen]

Hello Vit,

Unfortunately, I'm unable to recreate the error you have described. Could you please verify that the DataItem is not null.
If you continue to experiencing difficulties please provide a small runnable project in which the issue can be observed.

Regards,
Rosen
the Telerik team

[Vit]

I have created and attached sample project.

[Rosen]

Hi Vit,

Thank you for sending us the project. I was able to observed the error you have described. However, we have already addressed this issue and the fix will be available in the official Q1 2011 release.

Best wishes,
Rosen
the Telerik team