本文介绍如何使用C#从Excel文件中读取数据，并通过ASP.NET中的GridView控件进行展示。具体步骤包括建立OleDb连接、创建OleDbCommand对象执行SQL查询、使用OleDbDataAdapter填充DataSet以及设置GridView的DataSource并绑定。
详细代码如下:
Default.aspx
1
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="_Default" %>
2
3<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
4
5<html xmlns="http://www.w3.org/1999/xhtml" >
6<head runat="server">
7 <title>Untitled Page</title>
8</head>
9<body>
10 <form id="form1" runat="server">
11 <div>
12 <asp:GridView ID="GridView1" runat="server" Style="z-index: 100; left: 0px; position: absolute;
13 top: 0px">
14 </asp:GridView>
15
16 </div>
17 </form>
18</body>
19</html>
20
Default.aspx.cs<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="_Default" %>2
3
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">4
5
<html xmlns="http://www.w3.org/1999/xhtml" >6
<head runat="server">7
<title>Untitled Page</title>8
</head>9
<body>10
<form id="form1" runat="server">11
<div>12
<asp:GridView ID="GridView1" runat="server" Style="z-index: 100; left: 0px; position: absolute;13
top: 0px">14
</asp:GridView>15
16
</div>17
</form>18
</body>19
</html>20
1using System;
2using System.Data;
3using System.Configuration;
4using System.Web;
5using System.Web.Security;
6using System.Web.UI;
7using System.Web.UI.WebControls;
8using System.Web.UI.WebControls.WebParts;
9using System.Web.UI.HtmlControls;
10using System.Data.OleDb;
11
12public partial class _Default : System.Web.UI.Page
13
{
14
protected void Page_Load(object sender, EventArgs e)
15
{
16 if (!IsPostBack)
17 {
18 string connectionString = "provider=microsoft.jet.oledb.4.0;data source=D:/WebSites/ReadExcel/App_Data/message.xls;extended properties=excel 8.0";
19 OleDbConnection myConnection = new OleDbConnection(connectionString);
20 OleDbCommand myCommand = new OleDbCommand("select * from [Sheet1$]", myConnection);
21 OleDbDataAdapter myAdapter = new OleDbDataAdapter(myCommand);
22 DataSet ds = new DataSet();
23 myAdapter.Fill(ds);
24 GridView1.DataSource = ds;
25 GridView1.DataBind();
26
}
27 }
28
}
29
using System;2
using System.Data;3
using System.Configuration;4
using System.Web;5
using System.Web.Security;6
using System.Web.UI;7
using System.Web.UI.WebControls;8
using System.Web.UI.WebControls.WebParts;9
using System.Web.UI.HtmlControls;10
using System.Data.OleDb;11
12
public partial class _Default : System.Web.UI.Page 13
{14
protected void Page_Load(object sender, EventArgs e)15
{16
if (!IsPostBack)17
{18
string connectionString = "provider=microsoft.jet.oledb.4.0;data source=D:/WebSites/ReadExcel/App_Data/message.xls;extended properties=excel 8.0";19
OleDbConnection myConnection = new OleDbConnection(connectionString);20
OleDbCommand myCommand = new OleDbCommand("select * from [Sheet1$]", myConnection);21
OleDbDataAdapter myAdapter = new OleDbDataAdapter(myCommand);22
DataSet ds = new DataSet();23
myAdapter.Fill(ds);24
GridView1.DataSource = ds;25
GridView1.DataBind();26
}27
}28
}29
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