Fetch The Value From Each Cell Into Datatable

I'm trying this code but nothing is being displayedSqlConnection conn = new SqlConnection(ConfigurationManager.AppSettings["STRING_CON"]);

SqlDataAdapter da = new SqlDataAdapter("my_sproc", conn);DataTable dt = new DataTable();

DataRow dr;

//Adding the columns to the datatabledt.Columns.Add("CategoryIdIn");

dt.Columns.Add("CategoryNameVc");foreach (DataGridItem item in gd_freq.Items)

{

dr = dt.NewRow();

dr[0] = item.Cells[0].Text;

dr[1] = item.Cells[1].Text;

dt.Rows.Add(dr);

}//ForEach

da.Fill(dt);

gd_freq.DataSource = dt;

gd_freq.DataBind();