ck/ck_cx.aspx.cs

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using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Data.SqlClient;
using System.Data;
namespace 仓库管理系统.ck
{
    public partial class ck_cx : System.Web.UI.Page
    {
        SQLHelper db = new SQLHelper();
        protected void Page_Load(object sender, EventArgs e)
        {
            if(!IsPostBack)
            {
                for (int i =2014; i <= 2016; i++)//生成一个10*10的座位列表
                 {
                    ListItem item = new ListItem(i.ToString(), i.ToString());
                    this.ddl_year.Items.Add(item);
                 }
                for (int t = 1; t <= 12;t++ )
                {
                    ListItem item = new ListItem(t.ToString(), t.ToString());
                    this.ddl_month.Items.Add(item);
                }
                ListItem lis = new ListItem("请选择", "0");
                this.ddl_year.Items.Insert(0, lis);
                ListItem lim = new ListItem("请选择", "0");
                this.ddl_month.Items.Insert(0, lim);
                //
                string sql = "select * from category order by c_id desc";//构造选出行业所有字段的SQL语句
                DataTable dt = db.ExecuteQuery(sql, CommandType.Text);
                this.ddl_category.DataSource = dt;
                this.ddl_category.DataTextField = "category";
                this.ddl_category.DataValueField = "c_id";
                this.ddl_category.DataBind();
                ListItem li = new ListItem("请选择", "0");
                this.ddl_category.Items.Insert(0, li);
                //
            }
        }

        protected void Button1_Click(object sender, EventArgs e)
        {
            int y = int.Parse(this.ddl_year.SelectedValue.ToString());
            int m= int.Parse(this.ddl_month.SelectedValue.ToString());
            int c_id = int.Parse(this.ddl_category.SelectedValue.ToString());
            Response.Redirect("ck_result.aspx?y="+y+"&m="+m+"&c_id="+c_id+"");
        }
    }
}