ASP.NET下导出Excel 以及在Ajax下面的实现
2012-06-07 06:04
399 查看
正常导出Excel代码
1
using System;
2
using System.Data;
3
using System.Configuration;
4
using System.Web;
5
using System.Web.Security;
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using System.Web.UI;
7
using System.Web.UI.WebControls;
8
using System.Web.UI.WebControls.WebParts;
9
using System.Web.UI.HtmlControls;
10
using System.Data.SqlClient;
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using System.IO;
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using System.Threading;
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14
public
partial
class _Default : System.Web.UI.Page
15
{
16
protected
void Page_Load(object sender, EventArgs e)
17
{
18
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}
20
protected
void btnOK_Click(object sender, EventArgs e)
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{
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Thread.Sleep(5000);
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bind();
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}
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27
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protected
void GridView1_PageIndexChanging(object sender, GridViewPageEventArgs e)
29
{
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GridView1.PageIndex
= e.NewPageIndex;
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bind();
32
}
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protected
void bind()
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{
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SqlConnection con
= new SqlConnection("server=.;database=Northwind;uid=sa;pwd=;");
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con.Open();
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SqlDataAdapter sda
= new SqlDataAdapter("select CustomerID,ContactName,ContactTitle,City
from Customers", con);
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DataSet ds
= new DataSet();
40
sda.Fill(ds);
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this.GridView1.DataSource
= ds.Tables[0];
42
this.GridView1.DataBind();
43
}
44
protected
void btnExcel_Click(object sender, EventArgs e)
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{
46
Thread.Sleep(2000);
47
SqlConnection con
= new SqlConnection("server=.;database=Northwind;uid=sa;pwd=;");
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con.Open();
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SqlDataAdapter sda
= new SqlDataAdapter("select CustomerID,ContactName,ContactTitle,City
from Customers", con);
50
DataSet ds
= new DataSet();
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sda.Fill(ds);
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DataTable dt
= ds.Tables[0];
53
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StringWriter sw
= new StringWriter();
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string sWriteLine
= "";
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string sExcelFileName
= "Excel.xls";
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int i
= 0;
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//写标题
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for (i
= 0; i
< dt.Columns.Count
- 1; i++)
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{
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sWriteLine
+= dt.Columns[i].ColumnName.ToString().Trim()
+ "\t";
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}
63
sWriteLine
+= dt.Columns[dt.Columns.Count
- 1].ColumnName.ToString().Trim();
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sw.WriteLine(sWriteLine);
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//写内容
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foreach (DataRow dr
in dt.Rows)
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{
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sWriteLine
= "";
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for (i
= 0; i
< dt.Columns.Count
- 1; i++)
70
{
71
sWriteLine
+= dr[i].ToString().Trim()
+ "\t";
72
}
73
sWriteLine
+= dr[dt.Columns.Count
- 1].ToString().Trim();
74
sw.WriteLine(sWriteLine);
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}
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sw.Close();
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ds.Dispose();
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con.Close();
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80
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Page.Response.Clear();
82
// 防止中文内容为乱码
83
Page.Response.ContentEncoding
= System.Text.Encoding.GetEncoding("gb2312");
84
//可令中文文件名不为乱码
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Page.Response.AppendHeader("content-disposition",
"attachment;filename="
+ HttpUtility.UrlPathEncode(sExcelFileName));
86
System.Globalization.CultureInfo myCItrad
= new System.Globalization.CultureInfo("ZH-CN",
true);
87
Page.Response.ContentType
= "application/ms-excel";
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HttpContext.Current.Response.Charset
= "gb2312";//编码，根据需要修改
89
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Page.Response.Write(sw);
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Page.Response.End();
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}
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}
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前台页面
<%@ Page Language="C#"
AutoEventWireup="true" CodeFile="Default.aspx.cs"
Inherits="_Default"
%>
<%@ Register Assembly="System.Web.Extensions,
Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"
Namespace="System.Web.UI"
TagPrefix="asp"
%>
<!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">
<asp:ScriptManager ID="ScriptManager1"
runat="server">
</asp:ScriptManager>
<asp:UpdatePanel ID="UpdatePanel1"
runat="server">
<ContentTemplate>
<div>
<asp:Button ID="btnOK"
runat="server" OnClick="btnOK_Click"
Text="获取"
/>
<asp:Button ID="btnExcel"
runat="server" OnClick="btnExcel_Click"
Text="Excel"
/><br
/>
<asp:GridView ID="GridView1"
runat="server" AllowPaging="True"
AllowSorting="True"
CellPadding="4"
ForeColor="#333333" GridLines="None"
Height="282px" OnPageIndexChanging="GridView1_PageIndexChanging"
Width="250px">
<FooterStyle BackColor="#507CD1"
Font-Bold="True"
ForeColor="White"
/>
<RowStyle BackColor="#EFF3FB"
/>
<PagerStyle BackColor="#2461BF"
ForeColor="White" HorizontalAlign="Center"
/>
<SelectedRowStyle BackColor="#D1DDF1"
Font-Bold="True"
ForeColor="#333333"
/>
<HeaderStyle BackColor="#507CD1"
Font-Bold="True"
ForeColor="White"
/>
<EditRowStyle BackColor="#2461BF"
/>
<AlternatingRowStyle BackColor="White"
/>
</asp:GridView>
</div>
</ContentTemplate>
<Triggers>
<asp:PostBackTrigger ControlID="btnExcel"
/>
</Triggers>
</asp:UpdatePanel>
<asp:UpdateProgress ID="UpdateProgress1"
runat="server">
<ProgressTemplate>
程序加载中Loading
</ProgressTemplate>
</asp:UpdateProgress>
<br
/>
</form>
</body>
</html>
实际上Ajax下面实现导出Excel 就是添加Triggers
<Triggers>
<asp:PostBackTrigger ControlID="btnExcel"
/>
</Triggers>
OK
1
using System;
2
using System.Data;
3
using System.Configuration;
4
using System.Web;
5
using System.Web.Security;
6
using System.Web.UI;
7
using System.Web.UI.WebControls;
8
using System.Web.UI.WebControls.WebParts;
9
using System.Web.UI.HtmlControls;
10
using System.Data.SqlClient;
11
using System.IO;
12
using System.Threading;
13
14
public
partial
class _Default : System.Web.UI.Page
15
{
16
protected
void Page_Load(object sender, EventArgs e)
17
{
18
19
}
20
protected
void btnOK_Click(object sender, EventArgs e)
21
{
22
Thread.Sleep(5000);
23
bind();
24
}
25
26
27
28
protected
void GridView1_PageIndexChanging(object sender, GridViewPageEventArgs e)
29
{
30
GridView1.PageIndex
= e.NewPageIndex;
31
bind();
32
}
33
34
protected
void bind()
35
{
36
SqlConnection con
= new SqlConnection("server=.;database=Northwind;uid=sa;pwd=;");
37
con.Open();
38
SqlDataAdapter sda
= new SqlDataAdapter("select CustomerID,ContactName,ContactTitle,City
from Customers", con);
39
DataSet ds
= new DataSet();
40
sda.Fill(ds);
41
this.GridView1.DataSource
= ds.Tables[0];
42
this.GridView1.DataBind();
43
}
44
protected
void btnExcel_Click(object sender, EventArgs e)
45
{
46
Thread.Sleep(2000);
47
SqlConnection con
= new SqlConnection("server=.;database=Northwind;uid=sa;pwd=;");
48
con.Open();
49
SqlDataAdapter sda
= new SqlDataAdapter("select CustomerID,ContactName,ContactTitle,City
from Customers", con);
50
DataSet ds
= new DataSet();
51
sda.Fill(ds);
52
DataTable dt
= ds.Tables[0];
53
54
StringWriter sw
= new StringWriter();
55
string sWriteLine
= "";
56
string sExcelFileName
= "Excel.xls";
57
int i
= 0;
58
//写标题
59
for (i
= 0; i
< dt.Columns.Count
- 1; i++)
60
{
61
sWriteLine
+= dt.Columns[i].ColumnName.ToString().Trim()
+ "\t";
62
}
63
sWriteLine
+= dt.Columns[dt.Columns.Count
- 1].ColumnName.ToString().Trim();
64
sw.WriteLine(sWriteLine);
65
//写内容
66
foreach (DataRow dr
in dt.Rows)
67
{
68
sWriteLine
= "";
69
for (i
= 0; i
< dt.Columns.Count
- 1; i++)
70
{
71
sWriteLine
+= dr[i].ToString().Trim()
+ "\t";
72
}
73
sWriteLine
+= dr[dt.Columns.Count
- 1].ToString().Trim();
74
sw.WriteLine(sWriteLine);
75
}
76
sw.Close();
77
ds.Dispose();
78
con.Close();
79
80
81
Page.Response.Clear();
82
// 防止中文内容为乱码
83
Page.Response.ContentEncoding
= System.Text.Encoding.GetEncoding("gb2312");
84
//可令中文文件名不为乱码
85
Page.Response.AppendHeader("content-disposition",
"attachment;filename="
+ HttpUtility.UrlPathEncode(sExcelFileName));
86
System.Globalization.CultureInfo myCItrad
= new System.Globalization.CultureInfo("ZH-CN",
true);
87
Page.Response.ContentType
= "application/ms-excel";
88
HttpContext.Current.Response.Charset
= "gb2312";//编码，根据需要修改
89
90
Page.Response.Write(sw);
91
Page.Response.End();
92
}
93
}
94
前台页面
<%@ Page Language="C#"
AutoEventWireup="true" CodeFile="Default.aspx.cs"
Inherits="_Default"
%>
<%@ Register Assembly="System.Web.Extensions,
Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"
Namespace="System.Web.UI"
TagPrefix="asp"
%>
<!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">
<asp:ScriptManager ID="ScriptManager1"
runat="server">
</asp:ScriptManager>
<asp:UpdatePanel ID="UpdatePanel1"
runat="server">
<ContentTemplate>
<div>
<asp:Button ID="btnOK"
runat="server" OnClick="btnOK_Click"
Text="获取"
/>
<asp:Button ID="btnExcel"
runat="server" OnClick="btnExcel_Click"
Text="Excel"
/><br
/>
<asp:GridView ID="GridView1"
runat="server" AllowPaging="True"
AllowSorting="True"
CellPadding="4"
ForeColor="#333333" GridLines="None"
Height="282px" OnPageIndexChanging="GridView1_PageIndexChanging"
Width="250px">
<FooterStyle BackColor="#507CD1"
Font-Bold="True"
ForeColor="White"
/>
<RowStyle BackColor="#EFF3FB"
/>
<PagerStyle BackColor="#2461BF"
ForeColor="White" HorizontalAlign="Center"
/>
<SelectedRowStyle BackColor="#D1DDF1"
Font-Bold="True"
ForeColor="#333333"
/>
<HeaderStyle BackColor="#507CD1"
Font-Bold="True"
ForeColor="White"
/>
<EditRowStyle BackColor="#2461BF"
/>
<AlternatingRowStyle BackColor="White"
/>
</asp:GridView>
</div>
</ContentTemplate>
<Triggers>
<asp:PostBackTrigger ControlID="btnExcel"
/>
</Triggers>
</asp:UpdatePanel>
<asp:UpdateProgress ID="UpdateProgress1"
runat="server">
<ProgressTemplate>
程序加载中Loading
</ProgressTemplate>
</asp:UpdateProgress>
<br
/>
</form>
</body>
</html>
实际上Ajax下面实现导出Excel 就是添加Triggers
<Triggers>
<asp:PostBackTrigger ControlID="btnExcel"
/>
</Triggers>
OK
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