Using Response.BinaryWrite when click on a button in Detail Grid

[Phuc]

Hi all,

I got a problem with AJAX when interacting with a control to use Response.BinaryWrite method as below :
- I have a Grid which has a detail area (this area contains detail information which includes a button), when this detail area is shown, user can click on a button to export a file by calling Response.BinaryWrite. My problem here is the radGrid in a RadAjaxPanel to use AJAX technique to show/hide detail area.

Is there any way to use export data in this case ?

Thanks a lot for your help.
Phuc

[Princy]

Hello Phuc,

This happens because you have ajaxified your RadGrid. Check the following help documentation which explains more about this.
Export from Ajaxified Grid.

Thanks,
Princy.

[Phuc]

Hi Princy,

I have used this code to register postback control in gridDetail_NeedDataSource event :

ImageButton iBtnSaveAttachedFile = nestedItem.FindControl("iBtnSaveAttachedFile") as ImageButton;
ScriptManager.GetCurrent(Page).RegisterPostBackControl(iBtnSaveAttachedFile);

But after clicking on this button, the bug still appears as the attached file.

Do you have any ideas?
Thank for your reply,
Phuc

[Tsvetina]

Hi Phuc,

This kind of error occurs only during an AJAX request, in other words your code did not work correctly. I would advise you to try the client-side approach suggested in the same help article or to try registering the postback control on ItemCreated event of the grid.

All the best,
Tsvetina
the Telerik team

[Phuc]

Thank your for your help