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Data gets lost when I perform postback on grid

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Grid

This is a migrated thread and some comments may be shown as answers.

Hugo Aristizabal asked on 08 Jul 2010, 05:12 PM

Hi.

I have a RadGrid on an ASP.NET page. When I do something that requieres a postback directly on the grid, like changing the page size, or browsing to a new page in the grid, my data gets lost and my grid becomes empty. Here's my markup:

<telerik:RadGrid ID="ReporteGridView" runat="server" AllowPaging="True" PageSize="20"

AllowAutomaticInserts="false" AllowSorting="True" ShowStatusBar="true" Width="880px">

<ExportSettings ExportOnlyData="true" IgnorePaging="true" OpenInNewWindow="true" />

<MasterTableView NoMasterRecordsText="No hay registros para mostrar" ShowHeadersWhenNoRecords="True"

PageSize="20" CommandItemDisplay="None" Width="100%">

<PagerStyle FirstPageToolTip="Primera página" LastPageToolTip="Ultima página" NextPagesToolTip="Página siguiente"

PageSizeLabelText="Tamaño página" PrevPagesToolTip="Página anterior" />

<RowIndicatorColumn>

<HeaderStyle Width="20px"></HeaderStyle>

</RowIndicatorColumn>

<ExpandCollapseColumn>

<HeaderStyle Width="20px"></HeaderStyle>

</ExpandCollapseColumn>

</MasterTableView>

<ClientSettings>

<Scrolling AllowScroll="true" UseStaticHeaders="True"></Scrolling>

</ClientSettings>

</telerik:RadGrid>

I'm binding my grid to a DataTable at runtime. Is there something I'm missing?

Thanks.

6 Answers, 1 is accepted

answered on 07 Jul 2012, 07:50 AM

hi guys,
i have same problem too, consider that i have a radiobuttonList on my radgrid, when a postback accure in radgrid , its value just gone and it returns the default value when page was loded. please help ...
ohhh , i bind my data on NeedDatasource Event with setting radgrid data source on a list. here is my code :

protected void RadGridCustomized1_NeedDataSource(object source, Telerik.Web.UI.GridNeedDataSourceEventArgs e)

{

HSECourseEOList list = Session[cachedEntity] as HSECourseEOList;

RadGrid1.DataSource = list;

}

thanks .