你是要用程序实现吗，直接在企业管理器中实现不可以吗

“备份”CLICK事件代码，你参考下：

protected void btnBackup_Click(object sender, System.EventArgs e)
{
string strDBName = txtName.Text.Trim();
string strPath = txtPath.Text.Trim();

if( strDBName == String.Empty )
{
Response.Write("<script>");
Response.Write("alert('请输入数据库名!!!');");
Response.Write("</script>");
return;
}
if( strPath == String.Empty )
{
Response.Write("<script>");
Response.Write("alert('请输入要备份到的路径!!!');");
Response.Write("</script>");
return;
}

DateTime myTime=System.DateTime.Now;
string strDTime = myTime.ToLongDateString();
strDTime += "(";
strDTime += myTime.Hour.ToString("00");
strDTime += myTime.Minute.ToString("00");
strDTime += myTime.Second.ToString("00");
strDTime += ")";
strPath += "SCardDB." + strDTime + ".bak";

DBConn myDB = new DBConn();
string mySql = "backup database " + strDBName + " to disk = '" + strPath + "'";
int i = myDB.Update( mySql );
myDB.Close();

if( i == -1 )
{
Response.Write("<script>");
Response.Write("alert('数据备份成功!!!');");
Response.Write("</script>");
}
}

//txtName 是数据库名 txtPath是备份文件保存路径

有没有人讲的清楚一点。

恢复呢，如果用from disk的话，提示说数据库正在使用，不能访问！