%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="_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 id="Head1" runat="server">
title>無標題頁/title>
style type="text/css">
.style1
{
height: 16px;
}
.style3
{
height: 23px;
}
/style>
/head>
body>
form id="form1" runat="server">
div>
/div>
table align="center" border="1" bordercolor="honeydew" cellpadding="0"
cellspacing="0">
tr>
td style="FONT-SIZE: 9pt; COLOR: #ff0000; BACKGROUND-COLOR: #ff9933; TEXT-ALIGN: center"
class="style1">
/td>
td colspan="2"
style="FONT-SIZE: 9pt; COLOR: #ffffff; HEIGHT: 16px; BACKGROUND-COLOR: #ff9933; TEXT-ALIGN: center">
將Excel數據寫入Access數據庫中/td>
/tr>
tr>
td style="BACKGROUND-COLOR: #ffffcc; TEXT-ALIGN: center">
/td>
td style="BACKGROUND-COLOR: #ffffcc; TEXT-ALIGN: center">
iframe id="I1" name="I1" scrolling="yes" src="學生成績.xls"
style="WIDTH: 407px; HEIGHT: 280px">/iframe>
/td>
td style="WIDTH: 190px; BACKGROUND-COLOR: #ffffcc; TEXT-ALIGN: center">
asp:GridView ID="GridView1" runat="server" CellPadding="4" Font-Size="9pt"
ForeColor="#333333" GridLines="None" Width="228px">
FooterStyle BackColor="#990000" Font-Bold="True" ForeColor="White" />
RowStyle BackColor="#FFFBD6" ForeColor="#333333" />
SelectedRowStyle BackColor="#FFCC66" Font-Bold="True" ForeColor="Navy" />
PagerStyle BackColor="#FFCC66" ForeColor="#333333" HorizontalAlign="Center" />
HeaderStyle BackColor="#990000" Font-Bold="True" ForeColor="White" />
AlternatingRowStyle BackColor="White" />
/asp:GridView>
/td>
/tr>
tr>
td style="BACKGROUND-COLOR: #ff9900; TEXT-ALIGN: center" class="style3">
/td>
td style="HEIGHT: 23px; BACKGROUND-COLOR: #ff9900; TEXT-ALIGN: center"
valign="top">
asp:Button ID="Button3" runat="server" Font-Size="9pt" onclick="Button1_Click"
Text="Excel數據寫入Access數據庫中" />
asp:Label ID="Label1" runat="server" Text="Label" Visible="False"
style="font-size: x-small">/asp:Label>
/td>
td style="WIDTH: 190px; HEIGHT: 23px; BACKGROUND-COLOR: #ff9900; TEXT-ALIGN: center">
asp:Button ID="Button2" runat="server" Font-Size="9pt" onclick="Button2_Click"
Text="數據庫中顯示Excel數據" />
/td>
/tr>
tr>
td>
nbsp;/td>
/tr>
/table>
/form>
/body>
/html>
using System;
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.Data.OleDb;
public partial class _Default : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
}
public OleDbConnection CreateCon()
{
string strconn = "Provider=Microsoft.Jet.OLEDB.4.0;Data source=" + Server.MapPath("UserScore.mdb") + ";User Id=admin;Password=;";
OleDbConnection odbc = new OleDbConnection(strconn);
return odbc;
}
protected void Button1_Click(object sender, EventArgs e)
{
//定義Excel列表
string StyleSheet = "Sheet1";
//調用自定義LoadData方法，將Excel文件中數據讀到ASPNET頁面中
LoadData(StyleSheet);
//定義查詢的SQL語句
string sql = "select ID,用戶姓名,試卷,成績,考試時間 from Score";
//創建Oledb數據庫連接
OleDbConnection con = CreateCon();
con.Open();//打開數據庫連接
OleDbCommand com = new OleDbCommand(sql, con);
//開始事務
OleDbTransaction tran = con.BeginTransaction();
com.Transaction = tran;
//創建適配器
OleDbDataAdapter da = new OleDbDataAdapter(com);
OleDbCommandBuilder cb = new OleDbCommandBuilder(da);
//創建DataSet數據集
DataSet ds = new DataSet();
//填充數據集
da.Fill(ds);
int curIndex = 0;
if (ds.Tables[0].Rows.Count > 0)
{
curIndex = Convert.ToInt32(ds.Tables[0].Rows[0][0]);
}
//創建一個內存表
DataTable tb = this.getExcelDate();
string selsql = "";
for (int i = 0; i tb.Rows.Count; i++)
{
string UserName = tb.Rows[i][0].ToString();
selsql = "select count(*) from Score where 用戶姓名='" + UserName + "'";
}
//判斷Excel文件中是否已經導入到Access數據庫中
if (ExScalar(selsql) > 0)
{
Label1.Visible = true;
Label1.Text = "script language=javascript>alert('該Excle中的數據已經導入數據庫中!');location='Default.aspx';/script>";
}
else
{
//循環讀取Excel文件中數據，并添加到Access事先創建好的數據庫表中
for (int i = 0; i tb.Rows.Count; i++)
{
DataRow dr = ds.Tables[0].NewRow();
dr[0] = ++curIndex;
dr[1] = tb.Rows[i][0];
dr[2] = tb.Rows[i][1];
dr[3] = tb.Rows[i][2];
dr[4] = tb.Rows[i][3];
ds.Tables[0].Rows.Add(dr);
}
try
{
da.Update(ds);//執行插入操作
tran.Commit();//事務提交
Label1.Visible = true;
Label1.Text = "script language=javascript>alert('數據導入成功！');location='Default.aspx';/script>";
}
catch
{
tran.Rollback();//事務回滾
Label1.Visible = true;
Label1.Text = "script language=javascript>alert('數據導入失敗！');location='Default.aspx';/script>";
}
finally
{
con.Close();//關閉數據庫連接
}
}
}
protected void Button2_Click(object sender, EventArgs e)
{
string sqlstr = "select * from Score";
OleDbConnection conn = CreateCon();
conn.Open();
OleDbCommand mycom = new OleDbCommand(sqlstr, conn);
OleDbDataReader dr = mycom.ExecuteReader();
dr.Read();
if (dr.HasRows)
{
GetDataSet(sqlstr);
}
else
{
Label1.Visible = true;
Label1.Text = "script language=javascript>alert('數據庫中沒有數據信息，請先導入再查詢！');location='Default.aspx';/script>";
}
dr.Close();
conn.Close();
}
public DataSet GetDataSet(string sqlstr)
{
OleDbConnection conn = CreateCon();
OleDbDataAdapter myda = new OleDbDataAdapter(sqlstr, conn);
DataSet ds = new DataSet();
myda.Fill(ds);
GridView1.DataSource = ds;
GridView1.DataBind();
return ds;
}
public DataTable getExcelDate()
{
string strExcelFileName = Server.MapPath("學生成績.xls");
string strcon = "Provider=Microsoft.Jet.OLEDB.4.0;" + "Data Source=" + strExcelFileName + ";" + "Extended Properties='Excel 8.0;HDR=YES;IMEX=1';";
string sql = "select * from [Sheet1$]";
OleDbDataAdapter da = new OleDbDataAdapter(sql, strcon);
DataSet ds = new DataSet();
da.Fill(ds);
return ds.Tables[0];
}
public void LoadData(string StyleSheet)
{
//定義數據庫連接字符串 m
string strCon = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source =" + Server.MapPath("學生成績.xls") + ";Extended Properties=Excel 8.0";
//創建數據庫連接
OleDbConnection myConn = new OleDbConnection(strCon);
//打開數據鏈接，得到一個數據集
myConn.Open();
//創建DataSet對象
DataSet myDataSet = new DataSet();
//定義查詢的SQL語句
string StrSql = "select * from [" + StyleSheet + "$]";
//創建數據庫適配器
OleDbDataAdapter myCommand = new OleDbDataAdapter(StrSql, myConn);
//填充數據集中的數據
myCommand.Fill(myDataSet, "[" + StyleSheet + "$]");
//釋放占有的資源
myCommand.Dispose();
//關閉數據庫連接
myConn.Close();
}
public int ExScalar(string sql)
{
OleDbConnection conn = CreateCon();
conn.Open();
OleDbCommand com = new OleDbCommand(sql, conn);
return Convert.ToInt32(com.ExecuteScalar());
conn.Close();
}
}
