前台：
<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="Default.aspx.cs" Inherits="GridView._Default" %>
<!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:GridView ID="GridView1" runat="server" AutoGenerateColumns="False" CellPadding="3"
BackColor="White" BorderColor="#CCCCCC" BorderStyle="None" BorderWidth="1px" Font-Size="12px" >
<FooterStyle BackColor="White" ForeColor="#000066" />
<Columns>
<asp:BoundField DataField="身份证号码" HeaderText="编号" ReadOnly="True" />
<asp:BoundField DataField="姓名" HeaderText="姓名" />
<asp:BoundField DataField="出生日期" HeaderText="出生日期" />
<asp:BoundField DataField="家庭住址" HeaderText="家庭住址" />
<asp:BoundField DataField="邮政编码" HeaderText="邮政编码" />
<asp:BoundField DataField="起薪" HeaderText="起薪" />
</Columns>
<RowStyle ForeColor="#000066" />
<SelectedRowStyle BackColor="#669999" Font-Bold="True" ForeColor="White" />
<PagerStyle BackColor="White" ForeColor="#000066" HorizontalAlign="Left" />
<HeaderStyle BackColor="#006699" Font-Bold="True" ForeColor="White" />
</asp:GridView>
<asp:Button ID="Button1" runat="server" OnClick="Button1_Click" Text="导出" />
<asp:Button ID="Button2" runat="server" onclick="Button2_Click" Text ="导入" />
</form>
</body>
</html>
后台：
using System;
using System.Collections;
using System.Configuration;
using System.Data;
using System.Linq;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.HtmlControls;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Xml.Linq;
using System.Text;
using System.IO;
using System.Data.OracleClient;
using System.Data.OleDb;
namespace GridView
{
public partial class _Default : System.Web.UI.Page
{
OracleConnection cn;
//OracleCommand cmd;
string strCon = "Data Source=192.168.1.103/orcl;User ID=system;Password=sa;Unicode=True";
protected void Page_Load(object sender, EventArgs e)
{
if (!IsPostBack)
{
bind();
}
}
public void bind()
{
string sqlStr = "select *from Employee";
cn = new OracleConnection(strCon);
OracleDataAdapter da = new OracleDataAdapter(sqlStr, cn);
DataSet ds = new DataSet();
cn.Open();
da.Fill(ds, "Employee");
GridView1.DataSource = ds;
GridView1.DataKeyNames = new string[] { "身份证号码" };
GridView1.DataBind();
cn.Close();
}
protected void Button1_Click(object sender, EventArgs e)
{
Export("application/vnd.ms-excel", "学生成绩报表.xlsx");
}
private void Export(string FileType, string FileName)
{
Response.Charset = "GB2312";
Response.ContentEncoding = System.Text.Encoding.UTF32;
Response.AppendHeader("Content-Disposition", "attachment;filename=" +
HttpUtility.UrlEncode(FileName, Encoding.UTF32).ToString());
Response.ContentType = FileType;
this.EnableViewState = false;
//实现一个用于将信息写入字符串
StringWriter tw = new StringWriter();
HtmlTextWriter hw = new HtmlTextWriter(tw);
GridView1.RenderControl(hw);
Response.Write(tw.ToString());
Response.End();
}
public override void VerifyRenderingInServerForm(Control control)
{
}
private DataSet CreateDataSource()
{
string strCon;
strCon = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" + Server.MapPath("Employee.xls") + "; Extended Properties=Excel 8.0;";
OleDbConnection olecon = new OleDbConnection(strCon);
OleDbDataAdapter myda = new OleDbDataAdapter("SELECT * FROM [Sheet1$]", strCon);
DataSet myds = new DataSet();
myda.Fill(myds);
return myds;
}
protected void Button2_Click(object sender, EventArgs e)
{
GridView1.DataSource = CreateDataSource();
GridView1.DataBind();
}
}
}