DataTable dt = new DataTable();       

dt.Columns.Add("条件类型");
        dt.Columns.Add("类型");
        dt.Columns.Add("条件");
        dt.Columns.Add("范围");

        DataRow dr = dt.NewRow();
        dr["条件类型"] = "信息条件";
        dr["类型"] = "类型1“
        dr["条件"] = ”条件一"
        dr["范围"] = ”范围一"
        dt.Rows.Add(dr);
    
        RadGrid1.DataSource = dt;
        RadGrid1.DataBind();