[Resolved] How to get value of gridview buttonfield (linkbutton)

[snufse]

I have a gridview and I am able to get cell values for bound fields like this:

If e.CommandName = "description" Then
            Dim index As Integer = Convert.ToInt32(e.CommandArgument)
            Dim mySelectedRow As GridViewRow
            mySelectedRow = GridView1.Rows(index)
            Dim mySelectedCell As TableCell
            mySelectedCell = mySelectedRow.Cells(3)
            Dim jobtext As String
            jobtext = mySelectedCell.Text
End If

Now I need to get the value for a Button Field (header column name is "description") and not sure how to do this. Here is the code I have:

Dim index = Convert.ToInt32(e.CommandArgument)
Dim mySelectedRow As GridViewRow = GridView1.Rows(index)
Dim myButtonField As LinkButton = mySelectedRow.FindControl("description")
Dim jobtext As String = myButtonField.Text.ToString

Get error (last line of code): Object reference not set to an instance of an object.

Can somebody help please. Thank you.