teachers/Manage.aspx.cs

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using System;
using System.Collections;
using System.Configuration;
using System.Data;
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;

public partial class teachers_Manage : System.Web.UI.Page
{
   
    protected void Page_Load(object sender, EventArgs e)
    {
        if (!IsPostBack)
        {
            (Master.FindControl("Label1") as Label).Text = "管理教师";
            btnDelete.Attributes.Add("onclick", "return confirm(\"你确认要删除吗？\")");

            BindData();
        }
    }

    // 绑定
    private void BindData()
    {       
        string where = " where 1=1 ";

        if (txt_lname.Text != "")
        {
            where += " and lname like '%" + txt_lname.Text + "%' ";
        }

        if (txt_tname.Text != "")
        {
            where += " and tname like '%" + txt_tname.Text + "%' ";
        }



        GridView1.DataSource = SqlHelper.ExecuteforDataSet("select * from teachers " + where + " order by tid desc");
        GridView1.DataBind();

    }

    /// <summary>
    /// 分页事件
    /// </summary>
    /// <param name="sender"></param>
    /// <param name="e"></param>
    protected void GridView1_PageIndexChanging(object sender, GridViewPageEventArgs e)
    {
        GridView1.PageIndex = e.NewPageIndex;
        BindData();
    }
   
    // 搜索
    protected void btnSearch_Click(object sender, EventArgs e)