admin/products/List.aspx.cs

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using System;
using System.Collections.Generic;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Data;

public partial class products_List : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {
        if (!IsPostBack)
        {
            (Master.FindControl("Label1") as Label).Text = "管理商品";
        DataSet dstid = DbHelperSQL.Query("select tid,tname from productType");
        ddltid.DataSource = dstid;
        ddltid.DataTextField = "tname";
        ddltid.DataValueField = "tid";
        ddltid.DataBind();
        ddltid.Items.Insert(0, new ListItem("---全部---", ""));


            bind();
        }
    }

    /// <summary>
    /// 绑定
    /// </summary>
    private void bind()
    {       
        string where = " where 1=1 ";

        if (txt_pname.Text != "")
        {
            where += " and pname like '%" + txt_pname.Text + "%' ";
        }
        if (ddltid.SelectedValue!= "")
        {
            where += " and a.tid=" + ddltid.SelectedValue + "";
        }
        GridView1.DataSource = DbHelperSQL.Query("select a.*,b.tname from products a  left join productType b on a.tid=b.tid " + where + " order by pid desc");
        GridView1.DataBind();

    }
    /// <summary>
    /// 删除
    /// </summary>
    /// <param name="sender"></param>
    /// <param name="e"></param>
    protected void lnk_Click(object sender, EventArgs e)
    {
        LinkButton lk = (LinkButton)sender;
        //删除相应的记录
        DbHelperSQL.ExecuteSql(" delete from products where pid=" + lk.CommandName);
        //重新绑定数据源
        bind();
    }
    /// <summary>
    /// 分页事件