I was developing a Facebook application using Facebook C# SDK and i have an update panel in my page i'd like it to update a grid in it based on selected index changed event for a drop down list.
The problem is that i have the update panel was throwing an exception when i was trying to change the selected index of a drop down list, the error is :
Sys.WebForms.PageRequestManagerParserErrorException when using update Panel
So the solution for this problem is a missing or incorrect configuration in your Facebook application. Open the configuration of your Facebook application and select website tab and set the website url for your local Facebook application is running:
Site URL : http://localhost/
2) You can have SelectedIndexChanged event as AsyncPostBackTrigger in the update
panel and no issues with this because i read some posts were saying it has to be SyncPostBack
which is not actually right.
Hope this helps.