querygoodsprint.aspx.cs

C# + MYSQL 课程设计 ASP.NET 2.0数据库开发《餐饮消费管理系统》功能完整

//文件名：QueryGoodsPrint.aspx.cs
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 QueryManage_QueryGoodsPrint : System.Web.UI.Page
{
    private QueryManage_QueryGoodsForm MyQueryForm;
    protected void Page_Load(object sender, EventArgs e)
    {//将查询结果输出到Excel文件中
        MyQueryForm = (QueryManage_QueryGoodsForm)Context.Handler;
        this.Label1.Text = Session["MyCompanyName"].ToString() + "菜品信息表";
        this.Label2.Text = "打印日期：" + DateTime.Now.ToShortDateString();
        DataTable MyTable = new DataTable();
        string MySQL = MyQueryForm.MyPrintSQL;
        String MySQLConnectionString = ConfigurationManager.ConnectionStrings["MyEateryDBConnectionString"].ConnectionString;
        SqlConnection MyConnection = new SqlConnection(MySQLConnectionString);
        MyConnection.Open();
        SqlDataAdapter MyAdatper = new SqlDataAdapter(MySQL, MyConnection);
        MyAdatper.Fill(MyTable);
        this.DataGrid1.DataSource = MyTable;
        this.DataGrid1.DataBind();
        this.Response.ContentType = "application/vnd.ms-excel";
        this.Response.Charset = "";
        //关闭 ViewState
        this.EnableViewState = false;
        System.IO.StringWriter MyWriter;
        System.Web.UI.HtmlTextWriter MyWeb;
        //将信息写入字符串
        MyWriter = new System.IO.StringWriter();
        //在Web窗体页上写出一系列连续的HTML特定字符和文本
        MyWeb = new System.Web.UI.HtmlTextWriter(MyWriter);
        //将DataGrid中的内容输出到HtmlTextWriter对象中
        this.DataGrid1.RenderControl(MyWeb);
        //把HTML写回浏览器
        Response.Write(MyWriter.ToString());
        if (MyConnection.State == ConnectionState.Open)
        {
            MyConnection.Close();
        }
    }
}