📄 exportexcel.aspx.cs
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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;
using System.Text;
namespace ASPNETPrint
{
/// <summary>
/// WebForm1 的摘要说明。
/// </summary>
public class ExportExcel : System.Web.UI.Page
{
protected System.Web.UI.WebControls.DataGrid dgShow;
protected System.Web.UI.WebControls.Button btnCom;
protected System.Web.UI.WebControls.Button btnMIME;
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 DataSet BindData()
{
SqlConnection myConnection = new SqlConnection( "server=(local);uid=sa;pwd=111;database=Pubs" );
DataSet myDataSet = new DataSet();
SqlDataAdapter myDataAdapter = new SqlDataAdapter("Select * From Authors", myConnection );
myDataAdapter.Fill( myDataSet, "Authors" );
dgShow.DataSource = myDataSet.Tables[0].DefaultView;
dgShow.DataBind();
return myDataSet;
}
#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.btnCom.Click += new System.EventHandler(this.btnCom_Click);
this.Load += new System.EventHandler(this.Page_Load);
}
#endregion
private void btnMIME_Click(object sender, System.EventArgs e)
{
BindData();
Response.ContentType = "application/vnd.ms-excel";
Response.AddHeader("Content-Disposition", "inline;filename="
+ HttpUtility.UrlEncode("下载文件.xls",Encoding.UTF8 ) );
//如果输出为Word，修改为以下代码
//Response.ContentType = "application/ms-word"
//Response.AddHeader("Content-Disposition", "inline;filename=test.doc")
StringBuilder sb=new StringBuilder();
System.IO.StringWriter sw = new System.IO.StringWriter(sb);
System.Web.UI.HtmlTextWriter hw = new System.Web.UI.HtmlTextWriter(sw);
sb.Append("<html><body>");
dgShow.RenderControl(hw);
sb.Append("</body></html>");
Response.Write(sb.ToString());
Response.End();
}
private void btnCom_Click(object sender, System.EventArgs e)
{
ExportToExcel(BindData(),Server.MapPath("ComExcel.xls"));
}
//从DataSet到出到Excel
#region 从DataSet到出到Excel
/// 导出指定的Excel文件
public void ExportToExcel(DataSet ds,string strExcelFileName)
{
if (ds.Tables.Count==0 || strExcelFileName=="") return;
doExport(ds,strExcelFileName);
}
/// 执行导出
private void doExport(DataSet ds,string strExcelFileName)
{
Excel.Application excel= new Excel.Application();
int rowIndex=1;
int colIndex=0;
excel.Application.Workbooks.Add(true);
System.Data.DataTable table=ds.Tables[0] ;
foreach(DataColumn col in table.Columns)
{
colIndex++;
excel.Cells[1,colIndex]=col.ColumnName;
}
foreach(DataRow row in table.Rows)
{
rowIndex++;
colIndex=0;
foreach(DataColumn col in table.Columns)
{
colIndex++;
excel.Cells[rowIndex,colIndex]=row[col.ColumnName].ToString();
}
}
excel.Visible=false;
excel.ActiveWorkbook.SaveAs(strExcelFileName+".XLS",Excel.XlFileFormat.xlExcel9795,null,null,false,false,Excel.XlSaveAsAccessMode.xlNoChange,null,null,null,null,null);
excel.Quit();
excel=null;
GC.Collect();//垃圾回收
}
#endregion
}
}
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