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BOOK: Beginning ASP.NET 1.1
This is the forum to discuss the Wrox book Beginning ASP.NET 1.1 with Visual C#.NET 2003 by Chris Ullman, John Kauffman, Chris Hart, Dave Sussman, Daniel Maharry; ISBN: 9780764557088
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Old February 16th, 2007, 03:41 AM
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Default chapter 8:datagrid sorting not working

hi friends,
 I have written the code as below for sorting the datagrid columns.but its not working.please check the code and help me to overcome my problem..
************************************************** *****************
using System;
using System.Collections;
using System.ComponentModel;
using System.Data;
using System.Data.OleDb;
using System.Data.SqlClient;
using System.Drawing;
using System.Web;
using System.Web.SessionState;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.HtmlControls;

namespace WebApplication1.images
        public class sort : System.Web.UI.Page
        protected System.Web.UI.WebControls.DataGrid DataGrid1;

        private void Page_Load(object sender, System.EventArgs e)

            if (!Page.IsPostBack )




        #region Web Form Designer generated code
        override protected void OnInit(EventArgs e)
            // CODEGEN: This call is required by the ASP.NET Web Form Designer.

        /// <summary>
        /// Required method for Designer support - do not modify
        /// the contents of this method with the code editor.
        /// </summary>
        private void InitializeComponent()
            this.Load += new System.EventHandler(this.Page_Load);


        public void DataGrid_Page(object sender, DataGridPageChangedEventArgs e)
            DataGrid1.CurrentPageIndex = e.NewPageIndex;

        public void DataGrid_Sort(object sender, DataGridSortCommandEventArgs e)
DataGrid1.CurrentPageIndex = 0;
            SortField = e.SortExpression;


        protected String SortField
                object o = ViewState["SortField"];
                return (o == null) ? String.Empty : (String)o;
                ViewState["SortField"] = value;
        void BindGrid()
            SqlConnection con3=new SqlConnection("server=localhost;Persist Security Info=False;User ID=sa;password=sa;Initial Catalog=vms_database;Data Source=server0");
            string CommandText;
            if(SortField == String.Empty)
                CommandText = "select * from Admin_ringtone order by songname";
                CommandText = "select * from Admin_ringtone order by" + SortField;
            SqlDataAdapter ad = new SqlDataAdapter("select * from Admin_ringtone ",con3);
            DataSet ds = new DataSet();
            DataGrid1.DataSource = ds;

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