InfoPath Dev

 Hi there.

I am trying to learn how to access the controls on an infopath form using VB.NET (using VSTA). Using the following code:

        Public Sub btnTest_Clicked(ByVal sender As Object, ByVal e As ClickedEventArgs)
            ' Write your code here.
            Dim chkBox As XPathNavigator = Me.MainDataSource.CreateNavigator().SelectSingleNode _
                        ("/my:myFields/my:chkCompleted", NamespaceManager)

        End Sub

 I am getting the following exception: "System.Security.SecurityException was unhandled by user code"
 

If anyone can help, that would be ace!

It's OK. I figured it out. I had to make it fully trusted.

For other newbies with this problem, do this (when you are in design view of Infopath):

1. Tools / Form Options
2. click the 'Security and Trust' category
3. uncheck 'Automatically determine security level'
4. check 'Full Trust'

Then, you should no longer get that error.