exportexcel.aspx.cs

这是c#.net源代码

using System;
using System.Collections;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Web;
using System.Web.SessionState;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.HtmlControls;
using System.Data.SqlClient;
namespace MsDataGrid
{
	/// <summary>
	/// WebForm1 的摘要说明。
	/// </summary>
	public class ExportExcel : System.Web.UI.Page
	{
		protected System.Web.UI.WebControls.Button btnMIME;
		protected System.Web.UI.WebControls.DataGrid dgShow;
	
		private void Page_Load(object sender, System.EventArgs e)
		{
			// 在此处放置用户代码以初始化页面
			if(!IsPostBack)
				BindData();
			
			
		}
		private void BindData()
		{
			string strCon = System.Configuration.ConfigurationSettings.AppSettings["DSN"];
			SqlConnection con = new SqlConnection(strCon);
			SqlDataAdapter da = new SqlDataAdapter("Select * from tbStudentinfo",con);
			DataSet ds = new DataSet();
			da.Fill(ds,"studentinfo");
			dgShow.DataSource = ds.Tables["studentinfo"].DefaultView;
			dgShow.DataBind();
			
		}
		#region Web Form Designer generated code
		override protected void OnInit(EventArgs e)
		{
			//
			// CODEGEN：该调用是 ASP.NET Web 窗体设计器所必需的。
			//
			InitializeComponent();
			base.OnInit(e);
		}
		
		/// <summary>
		/// 设计器支持所需的方法 - 不要使用代码编辑器修改
		/// 此方法的内容。
		/// </summary>
		private void InitializeComponent()
		{    
			this.btnMIME.Click += new System.EventHandler(this.btnMIME_Click);
			this.Load += new System.EventHandler(this.Page_Load);

		}
		#endregion

		private void btnMIME_Click(object sender, System.EventArgs e)
		{
			Response.ContentType = "application/vnd.ms-excel";
            Response.Charset = "";
			this.EnableViewState = false;
			System.IO.StringWriter sw = new System.IO.StringWriter();
			System.Web.UI.HtmlTextWriter hw = new System.Web.UI.HtmlTextWriter(sw);
			int nCur = dgShow.CurrentPageIndex;
			int nSize = dgShow.PageSize;
			
			dgShow.AllowPaging = false;
			BindData();
				
			dgShow.Columns[7].Visible =false;
			dgShow.RenderControl(hw);
			dgShow.Columns[7].Visible =true;
			
			//以下恢复分页
			dgShow.AllowPaging = true;
			dgShow.CurrentPageIndex = nCur;
			dgShow.PageSize = nSize;
			BindData();
			Response.Write(sw.ToString());
			Response.End();
		}
	}
}