The following code connects to a Microsoft Access Database and iterates through the DataReader records row by row. The records returned are assigned to a label 'lblRecords' controls. If there are no records the text property of the label will display the message "There are no customers."
<%@ Page Language="VB" %>
<%@ Import Namespace="System.Data.Oledb" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">
Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs)
Dim Connection As OledbConnection
Connection = New OleDbConnection("Provider=Microsoft.Jet.Oledb.4.0;" & _
"Data Source=C:\Inetpub\wwwroot\Code\Customers.mdb")
Connection.Open()
Dim Command As OleDbCommand
Command = New OleDbCommand("SELECT * FROM tblCustomers", Connection)
Dim DataReader As OleDbDataReader
DataReader = Command.ExecuteReader()
If DataReader.Read() Then
Do While DataReader.Read()
lblRecords.Text &= DataReader("FirstName") & " "
lblRecords.Text &= DataReader("LastName") & "<br />"
Loop
Else
lblRecords.Text = "There are no customers."
End If
Connection.Close()
End Sub
</script>
<html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head1" runat="server">
<title>Iterate through Datareader records</title>
</head>
<body>
<form id="form1" runat="server">
<div>
<asp:label ID="lblRecords" runat="server" />
</div>
</form>
</body>
</html>
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