Hover in Gridviewrows using javascript in C#

We can hover on gridview row using javascript onmouseover event. We can also change the color in code behind.

protected void GridView1_RowDataBound(object sender, System.Web.UI.WebControls.GridViewRowEventArgs e)
{
GridViewRow gv = default(GridViewRow);

foreach ( gv in GridView1.Rows) {

if (gv.RowType == DataControlRowType.DataRow) {
gv.Attributes.Add("onmouseover", "this.style.background='#3399FF';this.style.cursor='pointer';");
gv.Attributes.Add("onmouseout", "this.style.background='';");

}

}
}