备份与恢复ACCESS数据库

备份与恢复ACCESS数据库
核心技术：
File.Copy

1.前台
       <table>
          <tr>
            <td align="center" colspan="3" style="height: 19px"><strong><span style="font-size: 12pt">备份与恢复ACCESS数据库</span></strong></td>
            </tr>
            <tr>
                <td style=" 192px">数据库备份名称：</td>
                <td><asp:TextBox ID="TextBox1" runat="server" Columns="17" MaxLength="17"></asp:TextBox></td>
                <td><asp:Button ID="Button1" runat="server" OnClick="Button1_Click" Text="数据备份" /></td>
            </tr>
            <tr>
                <td style=" 192px">数据库恢复名称：</td>
                <td><asp:DropDownList ID="DropDownList1" runat="server" Width="153px"></asp:DropDownList></td>
                <td><asp:Button ID="Button2" runat="server" OnClick="Button2_Click" Text="数据恢复" /></td>
            </tr>
        </table>
2.后台

using System.IO;
using System.Data.SqlClient;

public partial class _Default : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {
        if (!IsPostBack)
        {
            TextBox1.Text = DateTime.Now.ToShortDateString()+DateTime.Now.Hour.ToString() + "H.mdb";
            this.DataBindList();
        }
    }
    protected void Button1_Click(object sender, EventArgs e)
    {
        if (!File.Exists(Server.MapPath(@"~\bakDataBase\" + TextBox1.Text)))
        {
            File.Copy(Server.MapPath(@"~\App_Data\Test.mdb"), Server.MapPath(@"~\bakDataBase\" + TextBox1.Text));
            this.DataBindList();
            Response.Write("数据备份成功！");
        }
        else
        {
            Response.Write("备份文件已经存在，请重新命名！！！");
        }
    }
    public void DataBindList()
    {
        DropDownList1.Items.Clear();
        DataTable dt = new DataTable();
        dt.Columns.Add(new DataColumn("fileName", typeof(string)));
        DirectoryInfo dir = new DirectoryInfo(Server.MapPath(@"~\bakDataBase\"));
        foreach (FileInfo file in dir.GetFiles())
        {
            DataRow dr = dt.NewRow();
            dr[0] = file;
            dt.Rows.Add(dr);
        }
        DropDownList1.DataSource = dt;
        DropDownList1.DataTextField = "fileName";
        DropDownList1.DataBind();
    }
    protected void Button2_Click(object sender, EventArgs e)
    {
        File.Copy(Server.MapPath(@"~\bakDataBase\" + DropDownList1.SelectedItem.Text), Server.MapPath(@"~\App_Data\Test.mdb"), true);
        Response.Write("数据恢复成功！");
    }
}