Did you check http://west-wind.com/weblog/posts/256.aspx ?

>OK, for some reason this is tough for me.
>
>I have a table in SQL Server that stores paramters and the control source of those parameters.
>
>For one row, the column name is ReportParmValue and it contains "GridView1.SelectedValue". This is represented in the code as
>
>Dim cRPV As String = dtResult.Rows(0).Item("ReportParmValue")
>
>cRPV will now contain "GridView1.SelectedValue".
>
>My problem is that I want the value of the form control GridView1.SelectedValue (which should be a string) and not the string "GridView1.SelectedValue".
>
>The VFP equivalent would be something like
>
>x = (cRPV) ..or.. x = EVALUATE(cRPV)
>
>Any ideas? Thanks.