Web/admin/zw/zw.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.Text;
using Bll;

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

    private void initGvData()
    {

        string sql;

        sql = "select * from zw order by id desc";

        PageNavigator1.Total = 1;
        PageNavigator1.Query = sql;
    }

   
    protected void btnDel_Click(object sender, EventArgs e)
    {
        int n = 0;
        if (this.GvData.Rows.Count > 0)
        {
            for (int i = 0; i < GvData.Rows.Count; i++)
            {
                CheckBox ck = GvData.Rows[i].FindControl("ckFlag") as CheckBox;
                if (ck.Checked)
                {
                    int id = int.Parse(GvData.DataKeys[i].Value.ToString());
                    StringBuilder strSql = new StringBuilder();
                    strSql.Append("delete zw ");
                    strSql.Append(" where id=" + id);
                    DbHelperSQL.ExecuteSql(strSql.ToString());
                }
                else
                {
                    n++;
                }

                if (n == this.GvData.Rows.Count)
                {

                    ClientScript.RegisterStartupScript(typeof(Page), "aa", "alert('至少应选择一项')", true);