Dealing with Databinding Errors in ASP.net

Question

This has been bugging me for a while but when I databind a control using with a Session variable as the parameter which has not been initialized there is an exception thrown which I can't seem to catch anywhere.

Ideally if the session varaible is not set I would just like to redirect but I can't seem to figure out where I need to check for this instance.

Answer 1

Hi,

You must check the session object on page_init event.

Answer 2

Check it in your page load.

Sub Page_Load()

if Not Page.ispostback()

if session("Value") <>"" then

me.hiddenfield.value = Session("ValueName")

Else

Response.redirect("PAge.aspx")

End if

End if

End Sub

I tend to add some hidden fields as sessions eventually time out

then make the datasource use the hidden control for its reference