asp .net Gridview change color of Vertical lines

Question

I am trying to change the color of the horizontal and the vertical lines of an asp .net gridview. I am changing the cell border color but only the horizontal lines are changed. You can see a picture attached.

Answer 1

You can use RowDataBound:

protected void gridView1_RowDataBound(Object sender, GridViewRowEventArgs e)
{
    foreach (TableCell tc in e.Row.Cells)
    {
        tc.Attributes["style"] = "border-right:3px solid red; border-bottom:3px solid blue";
    }
}

Of course you can also use CSS classes(via tc.CssClass) instead of the inline css.