RadGrid inside RadWindow having issues in grid sorting - asp.net

Question

In my aspx page I have a RadPageView which contains RadWindow and the RadGrid is inside the RadWindow. (ie. RadMultiPage -> RadPageView -> RadWindow -> RadGrid).
<telerik:RadWindow EnableShadow="true" ShowContentDuringLoad="false" runat="server"
ReloadOnShow="true" Title="Standard Text: Add Observation." OpenerElementID="lnkObservationsText"
Behaviors="None" VisibleStatusbar="false" EnableViewState="true" ID="rdWndObservationText"
Skin="Web20" Modal="true" Width="600">
<ContentTemplate>
<div class="RadModalMainDiv">
<div>
<p>
Help text to go here....</p>
</div>
<div class="divStandardTextButtonList">
<asp:Button ID="btnObservationsTextSelect" runat="server" Text="Select" CssClass="btnStandardText"
OnClientClick="return ObservationStandardText_Confirm()" />
<asp:Button ID="btnObservationsTextCancel" runat="server" Text="Cancel" CssClass="btnStandardText" />
</div>
<asp:Panel ID="pnl1" runat="server">
<div>
<telerik:RadGrid ID="radGdObservationsText" runat="server" AllowPaging="True" AllowSorting="True"
AutoGenerateColumns="False" GridLines="None" PageSize="10" Width="100%">
<MasterTableView CommandItemDisplay="None" Name="ParentGrid">
<Columns>
<telerik:GridClientSelectColumn UniqueName="ClientSelectColumn">
</telerik:GridClientSelectColumn>
<telerik:GridBoundColumn DataField="description" HeaderText="Observation Description"
Visible="true">
</telerik:GridBoundColumn>
</Columns>
</MasterTableView>
<PagerStyle Mode="NextPrevAndNumeric" />
<ClientSettings>
<Selecting AllowRowSelect="True" />
<ClientEvents OnRowSelected="SetObservationStandardText" />
</ClientSettings>
</telerik:RadGrid>
</div>
</asp:Panel>
</div>
</ContentTemplate>
</telerik:RadWindow>
When I try to sort the grid clicking on the header, the page refreshes and the RadWindow disappears. Sorting happens coz when i reopens the RadGrid the rows appea sorted. I need the RadGrid to be sroted and remain in the same state.
Thanks for all helps in prior.

Answer 1

You have to reopen the RadWindow manually in order for this to work. I can suggest that you try an easier approach. Remove the OpenerElementID and modify the button that open the RadWindow and the other one that closes it as shown below:
Click handler for the button that open/close the window:
void lnkObservationsText_Click(object sender, EventArgs e)
{
rdWndObservationText.VisibleOnPageLoad = !rdWndObservationText.VisibleOnPageLoad;
}
Click handler code for the close button that resides in the RadWindow itself
void btnObservationsTextCancel_Click(object sender, EventArgs e)
{
rdWndObservationText.VisibleOnPageLoad = false;
}
In this case you won't need to use ReloadOnShow.
Hope this helps. Good luck :)