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DataGrid 完全攻略之二（把数据导出到Excel）

發(fā)布時(shí)間：2024/10/8 编程问答 36 豆豆

生活随笔收集整理的這篇文章主要介紹了 DataGrid 完全攻略之二（把数据导出到Excel）小編覺得挺不錯(cuò)的,現(xiàn)在分享給大家,幫大家做個(gè)參考.

前臺(tái)代碼：html
<%@?Page?language="c#"?Codebehind="ExportExcel.aspx.cs"?AutoEventWireup="false"?Inherits="MsDataGrid.ExportExcel"?%>
<!DOCTYPE?HTML?PUBLIC?"-//W3C//DTD?HTML?4.0?Transitional//EN"?>
<HTML>
????<HEAD>
????????<title>DataGrid使用舉例</title>
????????<meta?name="GENERATOR"?Content="Microsoft?Visual?Studio?7.0">
????????<meta?name="CODE_LANGUAGE"?Content="C#">
????????<meta?name="vs_defaultClientScript"?content="JavaScript">
????????<meta?name="vs_targetSchema"?content="http://schemas.microsoft.com/intellisense/ie5">
????</HEAD>
????<body?MS_POSITIONING="GridLayout">
????????<form?id="Form1"?method="post"?runat="server">
????????????<FONT?face="宋體">
????????????????<asp:DataGrid?id="dgShow"?style="Z-INDEX:?100;?LEFT:?26px;?POSITION:?absolute;?TOP:?89px"?runat="server"?Width="842px"?Height="172px"?BorderColor="Tan"?BorderWidth="1px"?BackColor="LightGoldenrodYellow"?CellPadding="2"?GridLines="None"?ForeColor="Black"?PageSize="1"?AutoGenerateColumns="False"?ShowFooter="True"?AllowPaging="True">
????????????????????<SelectedItemStyle?ForeColor="GhostWhite"?BackColor="DarkSlateBlue"></SelectedItemStyle>
????????????????????<AlternatingItemStyle?BackColor="PaleGoldenrod"></AlternatingItemStyle>
????????????????????<HeaderStyle?Font-Bold="True"?BackColor="Tan"></HeaderStyle>
????????????????????<FooterStyle?BackColor="Tan"></FooterStyle>
????????????????????<Columns>
????????????????????????<asp:BoundColumn?DataField="StudentID"?ReadOnly="True"?HeaderText="學(xué)生ID"></asp:BoundColumn>
????????????????????????<asp:BoundColumn?DataField="StudentName"?HeaderText="學(xué)生姓名"></asp:BoundColumn>
????????????????????????<asp:BoundColumn?DataField="StudentPass"?HeaderText="密碼"></asp:BoundColumn>
????????????????????????<asp:BoundColumn?DataField="Sex"?HeaderText="性別"></asp:BoundColumn>
????????????????????????<asp:BoundColumn?DataField="Birthday"?HeaderText="生日"?DataFormatString="{0:yyyy-M-d}"></asp:BoundColumn>
????????????????????????<asp:BoundColumn?DataField="Email"?HeaderText="郵件地址"></asp:BoundColumn>
????????????????????????<asp:BoundColumn?DataField="Score"?HeaderText="分?jǐn)?shù)"></asp:BoundColumn>
????????????????????????<asp:ButtonColumn?Text="選擇"?CommandName="Select"></asp:ButtonColumn>
????????????????????</Columns>
????????????????????<PagerStyle?HorizontalAlign="Center"?ForeColor="DarkSlateBlue"?BackColor="PaleGoldenrod"?Mode="NumericPages"></PagerStyle>
????????????????</asp:DataGrid>
????????????????<asp:Button?id="btnMIME"?style="Z-INDEX:?102;?LEFT:?230px;?POSITION:?absolute;?TOP:?44px"?runat="server"?Text="導(dǎo)出"></asp:Button></FONT>
????????</form>
????</body>
</HTML>
后臺(tái)代碼：cs
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?的摘要說明。
????///?</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)
????????{
????????????//?在此處放置用戶代碼以初始化頁(yè)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();
????????????
????????}
????????Web?Form?Designer?generated?code#region?Web?Form?Designer?generated?code
????????override?protected?void?OnInit(EventArgs?e)
????????{
????????????//
????????????//?CODEGEN：該調(diào)用是?ASP.NET?Web?窗體設(shè)計(jì)器所必需的。
????????????//
????????????InitializeComponent();
????????????base.OnInit(e);
????????}
????????
????????/**////?<summary>
????????///?設(shè)計(jì)器支持所需的方法?-?不要使用代碼編輯器修改
????????///?此方法的內(nèi)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;
????????????
????????????//以下恢復(fù)分頁(yè)
????????????dgShow.AllowPaging?=?true;
????????????dgShow.CurrentPageIndex?=?nCur;
????????????dgShow.PageSize?=?nSize;
????????????BindData();
????????????Response.Write(sw.ToString());
????????????Response.End();
????????}
????}
}
方法二：
if(DataGrid1.Items.Count==0)
????{
?????Response.Write("<script>alert('對(duì)不起,你沒有查詢到任何記錄,不能導(dǎo)出數(shù)據(jù)')</script>");
????}
????else
????{?????

???? Response.Clear();
?????Response.Buffer= true;
?????Response.Charset="GB2312";
?????Response.AppendHeader("Content-Disposition","attachment;filename=FileName.xls");
?????Response.ContentEncoding=System.Text.Encoding.GetEncoding("GB2312");
?????//設(shè)置輸出流為簡(jiǎn)體中文
?????Response.ContentType = "application/ms-excel";
?????//設(shè)置輸出文件類型為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);
?????DataGrid1.RenderControl(oHtmlTextWriter);
?????Response.Write(oStringWriter.ToString());
?????Response.End();

}
??????? Response.Clear();
??????? Response.Buffer = true;
??????? Response.Charset = "GB2312";
??????? Response.AppendHeader("Content-Disposition", "attachment;filename=FileName.xls");
??????? // 如果設(shè)置為 GetEncoding("GB2312");導(dǎo)出的文件將會(huì)出現(xiàn)亂碼！！！
??????? Response.ContentEncoding = System.Text.Encoding.UTF7;
??????? Response.ContentType = "application/ms-excel";//設(shè)置輸出文件類型為excel文件。
??????? System.IO.StringWriter oStringWriter = new System.IO.StringWriter();
??????? System.Web.UI.HtmlTextWriter oHtmlTextWriter = new System.Web.UI.HtmlTextWriter(oStringWriter);
??????? this.GridView1.RenderControl(oHtmlTextWriter);
??????? Response.Output.Write(oStringWriter.ToString());
??????? Response.Flush();
??????? Response.End();

轉(zhuǎn)載于:https://www.cnblogs.com/ghd258/archive/2005/10/12/253181.html

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