ASP.Net/ADO.net Database/OleDbDataAdapter

Материал из .Net Framework эксперт
Перейти к: навигация, поиск

Load data from Access database

   <source lang="csharp">

<%@ 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)

   If Not IsPostBack Then
       Dim DBConn as OleDbConnection
       Dim DBCommand As OleDbDataAdapter
       Dim DSPageData as New DataSet
       "DBConn = New OleDbConnection( _
       "    "PROVIDER=Microsoft.Jet.OLEDB.4.0;" _
       "    & "DATA SOURCE=" _
       "    & Server.MapPath("EmployeeDatabase.mdb;"))
       "DBConn = New OleDbConnection( _
       "    "PROVIDER=Microsoft.Jet.OLEDB.4.0;" _
       "    & "DATA SOURCE=" _
       "    & "c:\inetpub\wwwroot\EmployeeDatabase.mdb;")
       DBConn = New OleDbConnection( _
           "PROVIDER=Microsoft.Jet.OLEDB.4.0;" _
           & "DATA SOURCE=" _
           & MapPath("EmployeeDatabase.mdb;"))
       DBCommand = New OleDbDataAdapter _
           ("Select LastName & ", " & FirstName " _
           & "as EmpName, ID " _
           & "From Employee " _
           & "Order By LastName, FirstName", DBConn)
       DBCommand.Fill(DSPageData, _
           "Employee")
       ddlEmps.DataSource = _
           DSPageData.Tables("Employee").DefaultView
       ddlEmps.DataBind()
   End If

End Sub </SCRIPT> <HTML> <HEAD> <TITLE>Connecting to an Access Database</TITLE> </HEAD> <Body LEFTMARGIN="40"> <form runat="server">

<asp:dropdownlist

   id="ddlEmps"
   datatextfield="EmpName" 
   datavaluefield="ID"
   runat="server"

/> </form> </BODY> </HTML>

      </source>
   
  

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