[Solved] Using Slider Paging Mode with OnCommand

[Chad Thomas]

I have a RadGrid, that uses Paging in Slider Mode.  In the Client Settings I have an OnRowClick Event and an OnCommand Event.  When the OnCommand event is added, I get the following error, each time I page the grid forward with the clider.

Message: Sys.WebForms.PageRequestManagerServerErrorException: Unable to cast object of type 'Telerik.Web.UI.GridTHead' to type 'Telerik.Web.UI.RadSlider'.

If I change the mode to anything other than Slider it seems to work fine.  Also, If I remove the OnCommand event, it works fine.  Am I missing something, or is this a know bug?  Below is a snippet of my RadGrid.

<rad

 

:RadGrid ID="grdPeople" runat="server" DataSourceID="dsPerson" GridLines="None"

 

 

 

AllowPaging="True" AllowSorting="True" AutoGenerateColumns="False" PageSize="25"

 

 

 

OnItemCommand="grdPeople_ItemCommand" OnItemDataBound="grdPeople_ItemDataBound" >

 

 

 

<ClientSettings EnableRowHoverStyle="true" >

 

 

 

<ClientEvents OnRowClick="grdPeople_RowClick" OnCommand="grdPeople_Command" />

 

 

 

</ClientSettings>

 

 

 

<PagerStyle Mode="Slider" Position="Top" />

Thanks

 

[Veli]

Hello Chad,

This is an issue with RadGrid and the exception is thrown when the following 3 conditions are met:

1. PagerStyle.Mode = Slider with enabled paging

2. PagerStyle.Position = Top / TopAndBottom

3. ClientSettings.OnCommand event is attached

To work around this exception, it is advisable to not use Slider pager with OnCommand client event. The issue has been scheduled for fixing.

Regards,
Veli
the Telerik team

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