adding datagrid items at run time(ASP.NET code)

CODE :
DataRow dr;

DataSet ds = new DataSet();

ds.Tables.Add("DGStandIn");

ds.Tables["DGStandIn"].Columns.Add("ID",typeof(int));

//dgVanity is the datagrid name

for(int i = 0; i < nos; i++)

{

dr = ds.Tables["DGStandIn"].NewRow();

dr[0]=i;

ds.Tables["DGStandIn"].Rows.Add(dr);

}



dgVanity.DataSource = ds.Tables["DGStandIn"];

dgVanity.DataBind();


///////////////////// to loop through the datagrid items

foreach(DataGridItem i in dgVanity.Items)

{

if(((RadioButton)(i.FindControl("controlname"))).Checked)
{
//actions here
}

}