index.aspx.cs

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using System;
using System.Collections;
using System.Configuration;
using System.Data;
using System.Linq;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.HtmlControls;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Xml.Linq;
using System.Data.SqlClient;

public partial class index : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {
        if (!IsPostBack)
        {
            Bind();
        }
    }

    private void Bind()
    {
        SqlConnection conn = new SqlConnection(ConfigurationManager.ConnectionStrings["conn"].ConnectionString);
        conn.Open();
        string cmdtext = "select m_id,subject,m_content,datetime from Message order by datetime desc";
        SqlDataAdapter sda = new SqlDataAdapter(cmdtext, conn);
        DataSet ds = new DataSet();
        sda.Fill(ds, "Message");
        //  GridView1.DataKeyNames = new string[] { "id" };
        this.GridView1.DataSource = ds.Tables[0].DefaultView;
        this.GridView1.DataBind();
        conn.Close();
    }

    #region 注释删除
    // protected void GridView1_RowDeleting(object sender, GridViewDeleteEventArgs e)
    //{
        //string bb = GridView1.DataKeys[e.RowIndex].Value.ToString();
        //SqlConnection conn = new SqlConnection(ConfigurationManager.ConnectionStrings["conn"].ConnectionString);
        //conn.Open();
        //string delstring = "delete from Message where m_id= '" + bb + "'";
        //SqlCommand cmd = new SqlCommand(delstring, conn);
        //try
        //{
        //    cmd.ExecuteNonQuery();
        //    Response.Write("<script>alert('删除成功!')</script>");
        //}
        //catch (Exception error)
        //{
        //    throw new System.Exception(error.Message);
        //}
        //finally
        //{
        //    conn.Close();
        //}
        //Bind();