Question

I’m using the following code to highlight a row the user clicks on in gridview (and unhighlights previously selected row):

    protected void PartListRowClicked(object sender, GridViewRowClickedEventArgs e)
    {
        pnewrow = (GridViewRow)PartList.Rows[e.Row.RowIndex];
        pnewrow.BackColor = Color.Blue;
        pnewrow.ForeColor = Color.White;
        if (poldrow != null)
        {
            poldrow.BackColor = Color.Empty;
            poldrow.ForeColor = Color.Black;
        }
        poldrow = pnewrow;
    }

However, the poldrow object is always reset to null after a postback (clicking causes a postback). Is there a way to save the row index between postbacks? Or alternatively, is there a better way to implement this functionality?

Thanks

Answer 1

You could store the value in ViewState or Session:

public int CurrentRowIndex
{
    get
    {
        return ViewState["rowindex"] != null ?
               int.Parse(ViewState["rowindex"]) :
               0;
    }

    set
    {
        ViewState["rowindex"] = value;
    }
}