.net ArrayList show in gridview

private void BindGridview()
{
    string[,] arrlist = {
                    {"Suresh", "B.Tech"},
                    {"Nagaraju","MCA"},
                    {"Mahesh","MBA"},
                    {"Mahendra","B.Tech"}
                    };
    DataTable dt = new DataTable();
    DataRow dr = null;
    dt.Columns.Add(new DataColumn("Name", typeof(string)));
    dt.Columns.Add(new DataColumn("Education", typeof(string)));
    //dr = dt.NewRow();
    for (int i = 0; i < arrlist.GetLength(0);i++)
    {
        dr = dt.NewRow();
        dr["Name"] = arrlist[i,0].ToString();
        dr["Education"] = arrlist[i,1].ToString();

	dt.rows.add(dr);
    }
    gvarray.DataSource = dt;
    gvarray.DataBind();
}