ASP.Net/ADO.net Database/Transaction OleDbConnection — различия между версиями

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Версия 15:30, 26 мая 2010

Working with Transactions with an Access Database

<%@ Page Language=VB Debug=true %>
<%@ Import Namespace="System.Data" %>
<%@ Import Namespace="System.Data.OLEDB" %>
<script runat=server>
Sub Page_Load(ByVal Sender as Object, ByVal E as EventArgs)
    Dim DBConn as OleDbConnection
    Dim DBDelete As New OleDbCommand
    Dim DBTrans As OleDbTransaction
    DBConn = New OleDbConnection( _
        "PROVIDER=Microsoft.Jet.OLEDB.4.0;" _
        & "DATA SOURCE=" _
        & Server.MapPath("EmployeeDatabase.mdb;"))
    DBConn.Open()
    DBTrans = DBConn.BeginTransaction()
    DBDelete.Connection = DBConn
    DBDelete.Transaction = DBTrans
    DBDelete.rumandText = "Delete From Employee " _
        & "Where ID = 1"
    DBDelete.ExecuteNonQuery()
    DBDelete.rumandText = "Delete From Employee " _
        & "Where ID = 2"
    DBDelete.ExecuteNonQuery()
    DBTrans.RollBack()
    lblMessage.Text = "No action was taken."
    "DBTrans.rumit()
End Sub
</SCRIPT>
<HTML>
<HEAD>
<TITLE>Working with Transactions with an Access Database</TITLE>
</HEAD>
<Body LEFTMARGIN="40">
<form runat="server">
<BR><BR>
<asp:label
    id="lblMessage"
    runat="Server"
/>
</form>
</BODY>
</HTML>


<A href="http://www.nfex.ru/Code/ASPDownload/EmployeeDatabase.zip">EmployeeDatabase.zip( 10 k)</a>

Источник — «http://nfex.ru/index.php?title=ASP.Net/ADO.net_Database/Transaction_OleDbConnection&oldid=1638»