The exporting feature of the control work with regular postbacks only. The reason is the grid prepares additional information when performing export operation (available on postback). When the action is performed through asynchronous requests, this information can not be passed through the XMLHttpObject
- that is why the communication between the browser and the server fails.
For more information about how to bypass the limitation, please refer to this help article:
Export from ajaxified grid
I hope this helps.
the Telerik team
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