I need to select the row of a gridview using code behind.  The following code identifies the selectedvalue of the selected row.  Then the gridview is updated.  Then I would like to reselect the row of the gridview that was previously selected.  I used a textbox as a test, and the correct selectedvalue is displayed in the textbox after updating the gridview.  I just need to know how to reselect the correct row.  Here's the code I have so far:

protected void fv_ven_det_ItemUpdated(object sender, FormViewUpdatedEventArgs e)
{
    //Get the selected value of the selected row in rg_vendors gridview
    int rg_ven_sv = (int)rg_vendors.SelectedValue;            
    //Refresh rg_vendors gridview
    rg_vendors.DataBind();
    //Select the row again in rg_vendors using the value from rg_ven_sv
    //The correct value is visible in the test textbox
    test.Text = rg_ven_sv.ToString();

}