Finding a SQLDatasource control within a DetailsView control

[Luke Graham]

hi, I'm coding a social network style application for my dissertation and am having a few problems, I'm using ASP.net and VB.net

I have a button within a DetailsView control that I want to trigger an Insert for a Datasource that is also within the DetailsView

There is an OnClick event handler for the button but I'm having problems finding the datasource to trigger it the code I'm using is

Dim DataSource As SqlDataSource = CType(getFriendRequests.FindControl("approveFriend"), SqlDataSource)
 
DataSource.Update()
 

"getFriendRequests" is the name of the Details View and "approveFriend" is the name of the datasource I want to find

using the code above it can't find the datasource and returns a null error

any help would be great,

Thanks

Luke