把DataGrid上的数据导入到Excel 那请问Excel 文件放在那了?

把DataGrid上的数据导入到Excel
OutPutExcel.aspx<%@ Page language="c#" Codebehind="OutPutExcel.aspx.cs"
 AutoEventWireup="false" %>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN" >
<HTML>
<HEAD>
<title>OutPutExcel</title>
</HEAD>
<body>
<form id="Form1" method="post" runat="server">
<asp:DataGrid id="DataGrid1" runat="server"></asp:DataGrid>
<asp:Button id="Button1" runat="server" Text="输出到Excel"></asp:Button>
</form>
</body>
</HTML>OutPutExcel.aspx.csusing 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;namespace eMeng.Exam
{
/// <summary>
/// OutPutExcel 的摘要说明。
/// </summary>
public class OutPutExcel : System.Web.UI.Page
{
protected System.Web.UI.WebControls.Button Button1;
protected System.Web.UI.WebControls.DataGrid DataGrid1;private void Page_Load(object sender, System.EventArgs e)
{
// 在此处放置用户代码以初始化页面
DataGrid1.DataSource=CreateDataSource();
DataGrid1.DataBind();
}
/// <summary>
/// 创建数据源
/// </summary>
/// <returns>DataView</returns>
ICollection CreateDataSource() 
{DataTable dt = new DataTable();
DataRow dr;
dt.Columns.Add(new DataColumn("身份证号码", typeof(string)));
dt.Columns.Add(new DataColumn("图书单价",typeof(decimal)));
dt.Columns.Add(new DataColumn("购买数量",typeof(Int32)));
dt.Columns.Add(new DataColumn("总价格",typeof(decimal)));
for (int i = 0; i < 30; i++) 
{
dr = dt.NewRow();dr[0] = "123456789123456789";
dr[1] = 100 * i /3.0;
dr[2] = i + 5;
dr[3] = (decimal)dr[1] * (Int32)dr[2];
dt.Rows.Add(dr);
}
DataView dv = new DataView(dt);
return dv;
}
/// <summary>
/// 输出到Excel
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void Button1_Click(object sender, System.EventArgs e)
{
Response.Clear(); 
Response.Buffer= true; 
Response.Charset="GB2312";    
Response.AppendHeader("Content-Disposition","attachment;filename=FileName.xls"); 
Response.ContentEncoding=System.Text.Encoding.GetEncoding("GB2312");//设置输出流为简体中文
Response.ContentType = "application/ms-excel";//设置输出文件类型为excel文件。 
this.EnableViewState = false;    
System.Globalization.CultureInfo myCItrad = new System.Globalization.CultureInfo("ZH-CN",true);
System.IO.StringWriter oStringWriter = new System.IO.StringWriter(myCItrad); 
System.Web.UI.HtmlTextWriter oHtmlTextWriter = new System.Web.UI.HtmlTextWriter(oStringWriter);
this.DataGrid1.RenderControl(oHtmlTextWriter); 
Response.Write(oStringWriter.ToString());
Response.End();
}#region Web 窗体设计器生成的代码
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.Button1.Click += new System.EventHandler(this.Button1_Click);
this.DataGrid1.ItemDataBound += new System.Web.UI.WebControls.DataGridItemEventHandler(this.DataGrid1_ItemDataBound);
this.Load += new System.EventHandler(this.Page_Load);}
#endregionprivate void DataGrid1_ItemDataBound(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)
{
if(e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
{
e.Item.Cells[0].Attributes.Add("style","vnd.ms-excel.numberformat:@");
e.Item.Cells[3].Attributes.Add("style","vnd.ms-excel.numberformat:￥#,###.00");
}
}
}
}

解决方案 »

  1.   

    不会吧,datagrid里有数据,应该是可以的
      

  2.   

    那代码是ASP.NET 1.1写的,2.0这样改就行了
    文件名:Default3.aspx
    .aspx
    <%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default3.aspx.cs" Inherits="Default3" %><!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml" >
    <head runat="server">
        <title>无标题页</title>
    </head>
    <body>
        <form id="form1" runat="server">
        <div>
        <asp:DataGrid ID="DataGrid1" runat="server"></asp:DataGrid>
            <asp:Button ID="Button1" runat="server" OnClick="Button1_Click" Text="Button" /></div>
        </form>
    </body>
    </html>.cs[cod=C#]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;public partial class Default3 : System.Web.UI.Page
    {
        protected void Page_Load(object sender, EventArgs e)
        {    }
        ICollection CreateDataSource()
        {        DataTable dt = new DataTable();
            DataRow dr;
            dt.Columns.Add(new DataColumn("身份证号码", typeof(string)));
            dt.Columns.Add(new DataColumn("图书单价", typeof(decimal)));
            dt.Columns.Add(new DataColumn("购买数量", typeof(Int32)));
            dt.Columns.Add(new DataColumn("总价格", typeof(decimal)));
            for (int i = 0; i < 30; i++)
            {
                dr = dt.NewRow();            dr[0] = "123456789123456789";
                dr[1] = 100 * i / 3.0;
                dr[2] = i + 5;
                dr[3] = (decimal)dr[1] * (Int32)dr[2];
                dt.Rows.Add(dr);
            }
            DataView dv = new DataView(dt);
            return dv;
        }
        protected void Button1_Click(object sender, EventArgs e)
        {
            Response.Clear();
            Response.Buffer = true;
            Response.Charset = "GB2312";
            Response.AppendHeader("Content-Disposition", "attachment;filename=FileName.xls");
            Response.ContentEncoding = System.Text.Encoding.GetEncoding("GB2312");//设置输出流为简体中文
            Response.ContentType = "application/ms-excel";//设置输出文件类型为excel文件。  
            this.EnableViewState = false;
            System.Globalization.CultureInfo myCItrad = new System.Globalization.CultureInfo("ZH-CN", true);
            System.IO.StringWriter oStringWriter = new System.IO.StringWriter(myCItrad);
            System.Web.UI.HtmlTextWriter oHtmlTextWriter = new System.Web.UI.HtmlTextWriter(oStringWriter);
            this.DataGrid1.RenderControl(oHtmlTextWriter);
            Response.Write(oStringWriter.ToString());
            Response.End();
        }
    }
    [/code]
      

  3.   

    上面乱了,再贴一次.
    .csusing 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;public partial class Default3 : System.Web.UI.Page
    {
        protected void Page_Load(object sender, EventArgs e)
        {    }
        ICollection CreateDataSource()
        {        DataTable dt = new DataTable();
            DataRow dr;
            dt.Columns.Add(new DataColumn("身份证号码", typeof(string)));
            dt.Columns.Add(new DataColumn("图书单价", typeof(decimal)));
            dt.Columns.Add(new DataColumn("购买数量", typeof(Int32)));
            dt.Columns.Add(new DataColumn("总价格", typeof(decimal)));
            for (int i = 0; i < 30; i++)
            {
                dr = dt.NewRow();            dr[0] = "123456789123456789";
                dr[1] = 100 * i / 3.0;
                dr[2] = i + 5;
                dr[3] = (decimal)dr[1] * (Int32)dr[2];
                dt.Rows.Add(dr);
            }
            DataView dv = new DataView(dt);
            return dv;
        }
        protected void Button1_Click(object sender, EventArgs e)
        {
            Response.Clear();
            Response.Buffer = true;
            Response.Charset = "GB2312";
            Response.AppendHeader("Content-Disposition", "attachment;filename=FileName.xls");
            Response.ContentEncoding = System.Text.Encoding.GetEncoding("GB2312");//设置输出流为简体中文
            Response.ContentType = "application/ms-excel";//设置输出文件类型为excel文件。  
            this.EnableViewState = false;
            System.Globalization.CultureInfo myCItrad = new System.Globalization.CultureInfo("ZH-CN", true);
            System.IO.StringWriter oStringWriter = new System.IO.StringWriter(myCItrad);
            System.Web.UI.HtmlTextWriter oHtmlTextWriter = new System.Web.UI.HtmlTextWriter(oStringWriter);
            this.DataGrid1.RenderControl(oHtmlTextWriter);
            Response.Write(oStringWriter.ToString());
            Response.End();
        }
    }
      

  4.   

    .cs文件少了几个东东,嘿嘿,不好意思,下面补上正确的,我试了,可以,正确输出excel.
    问题解决请不要忘记结贴.谢谢!
    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;public partial class Default3 : System.Web.UI.Page
    {
        protected void Page_Load(object sender, EventArgs e)
        {
            DataGrid1.DataSource = CreateDataSource();
            DataGrid1.DataBind();     }
        ICollection CreateDataSource()
        {        DataTable dt = new DataTable();
            DataRow dr;
            dt.Columns.Add(new DataColumn("身份证号码", typeof(string)));
            dt.Columns.Add(new DataColumn("图书单价", typeof(decimal)));
            dt.Columns.Add(new DataColumn("购买数量", typeof(Int32)));
            dt.Columns.Add(new DataColumn("总价格", typeof(decimal)));
            for (int i = 0; i < 30; i++)
            {
                dr = dt.NewRow();            dr[0] = "123456789123456789";
                dr[1] = 100 * i / 3.0;
                dr[2] = i + 5;
                dr[3] = (decimal)dr[1] * (Int32)dr[2];
                dt.Rows.Add(dr);
            }
            DataView dv = new DataView(dt);
            return dv;
        }
        protected void Button1_Click(object sender, EventArgs e)
        {
            Response.Clear();
            Response.Buffer = true;
            Response.Charset = "GB2312";
            Response.AppendHeader("Content-Disposition", "attachment;filename=FileName.xls");
            Response.ContentEncoding = System.Text.Encoding.GetEncoding("GB2312");//设置输出流为简体中文
            Response.ContentType = "application/ms-excel";//设置输出文件类型为excel文件。  
            this.EnableViewState = false;
            System.Globalization.CultureInfo myCItrad = new System.Globalization.CultureInfo("ZH-CN", true);
            System.IO.StringWriter oStringWriter = new System.IO.StringWriter(myCItrad);
            System.Web.UI.HtmlTextWriter oHtmlTextWriter = new System.Web.UI.HtmlTextWriter(oStringWriter);
            this.DataGrid1.RenderControl(oHtmlTextWriter);
            Response.Write(oStringWriter.ToString());
            Response.End();
        }
        protected void DataGrid1_ItemDataBound(object sender, DataGridItemEventArgs e)
        {
            if (e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
            {
                e.Item.Cells[0].Attributes.Add("style", "vnd.ms-excel.numberformat:@");
                e.Item.Cells[3].Attributes.Add("style", "vnd.ms-excel.numberformat:￥#,###.00");
            }
        }
    }