fytj.aspx.cs

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

public partial class fytj : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {
        if (Convert.ToString(Session["username"]) == "")
        {
            Response.Write("<script language=javascript>alert('请登录');location='../login.aspx'</script>");
            return;
        }
        if (!IsPostBack)
        {
            this.bind();
        }
    }
    /// <summary>
    /// 数据绑定
    /// </summary>
    public void bind()
    {
        string sql = "select * from fyxx ";
        if (this.ddl.SelectedItem.Text != "全部")
        {
            sql += " where "+this.ddl.SelectedItem.Value+" like '%"+this.txtNR.Text+"%'";
        }
        sql += "order by fyid desc";
        SqlConnection strcon = new SqlConnection(System.Configuration.ConfigurationManager.AppSettings["strcon"]);
        strcon.Open();
        SqlDataAdapter sda = new SqlDataAdapter(sql, strcon);
        DataSet ds = new DataSet();
        sda.Fill(ds, "tb");
        GridView1.DataSource = ds.Tables["tb"];
        GridView1.DataKeyNames = new string[] { "fyid" };
        GridView1.DataBind();
    }
    protected void GridView1_PageIndexChanging(object sender, GridViewPageEventArgs e)
    {
        GridView1.PageIndex = e.NewPageIndex;
        this.bind();
    }
    protected void GridView1_RowDeleting(object sender, GridViewDeleteEventArgs e)
    {
        SqlConnection strcon = new SqlConnection(System.Configuration.ConfigurationManager.AppSettings["strcon"]);
        strcon.Open();
        string id = GridView1.DataKeys[e.RowIndex].Value.ToString();
        SqlCommand scd = new SqlCommand("delete from fyxx where yfid=" + id, strcon);
        scd.ExecuteNonQuery();
        this.bind();
    }