remote paging error | Infragistics Forums

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1730

remote paging error

Sanjay posted over 12 years ago

Hi,

I have implemented remote paging as shown in documentation.

Below is the complete markup for grid:

#testGrid_scroll
{
overflow-x: auto!important;
}

#testGrid>tbody>tr>td
{
white-space: nowrap;
}

</style>

@(Html.Infragistics().Grid<testData>(Model).ID("testGrid")

.AutoGenerateColumns(true)
.FixedHeaders(false)

.Features(features =>
{
features.Paging().PageSize(50).Type(OpType.Remote);
features.Selection().Mode(SelectionMode.Row).MultipleSelection(false).Activation(true);
features.Filtering().Mode(FilterMode.Advanced).CaseSensitive(false);
features.Sorting();
features.Resizing();
})

.DataSourceUrl(Url.Action("GetTestGridData"))

.Height("655px")
.DataBind()
.Render()
)

But I am getting javascript error:

Unhandled exception at line 25, column 75466 in http://localhost:23387/Scripts/Ig/modules/infragistics.ui.grid.framework.js

0x800a139e - Microsoft JScript runtime error: You have autoGenerateColumns set to false, but there are no columns defined in the grid. Please set autoGenerateColumns to true, or specify columns manually

Any help would be appreciated.

1730

Sanjay posted over 12 years ago in reply to Martin Pavlov

Hi Martin,

The problem is something else, since I am getting data and grid is also working for LOCAL PAGING.

Its throwing that error only when I change it to REMOTE Paging.

Below is the code controller code:

[GridDataSourceAction]
public ActionResult GetMeasurementGridData()
{
Measure measureData = AppCacheManager.GetCacheData<Measure>("Measurements");

return View(measureData.AsQueryable());

}

The only change is this method for remote paging and I have declared it in markup as well

.DataSourceUrl(Url.Action("GetMeasurementGridData"))

Still I am getting error.
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23953

Suggested Answer
Offline Martin Pavlov posted over 12 years ago
Hi Sanjay,

Auto generation of columns depends on the initially supplied data. Internally Infragistics.Web.Mvc.dll inspects the data and generates column definitions. If you didn't pass any data to the view model then the grid outputs the message you're observing.

I guess that your controller doesn't return any data to the view, so you should change it to look like this:

Code Snippet

public ActionResult Index()

{

   // return only the first page of the grid.

   return View(GetTestData().Take(50).AsQueryable());

}

private IEnumerable<testData> GetTestData()

{

   // In this method you should return your test data

   throw new NotImplementedException();

}

Hope this helps,

Martin Pavlov

Infragistics, Inc.
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