Setting and retrieving objects from the Session using State Service and a base page (VB) : Session Variables « Sessions « ASP.NET Tutorial

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ASP.NET Tutorial » Sessions » Session Variables 
11. 3. 8. Setting and retrieving objects from the Session using State Service and a base page (VB)
<%@ Page Language="VB" AutoEventWireup="false" CodeFile="Default.aspx.vb" Inherits="_Default" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" >
<head id="Head1" runat="server">
    <title>Session State</title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
        <asp:TextBox ID="TextBox1" Runat="server"></asp:TextBox>
        <asp:Button ID="Button1" Runat="server" Text="Store in Session" 
         OnClick="Button1_Click" />
        <br />
        <asp:HyperLink ID="HyperLink1" Runat="server" 
         NavigateUrl="NextPage.aspx">Next Page</asp:HyperLink>
    </div>
    </form>
</body>
</html>

File: Default.aspx.vb


Partial Class _Default
    Inherits SmartSessionPage

    Protected Sub Button1_Click(ByVal sender As Object, ByVal e As System.EventArgsHandles Button1.Click
        Dim names As String()
        names = TextBox1.Text.Split(" "c' " "c creates a char
        Dim p As New Person()
        p.firstName = names(0)
        p.lastName = names(1)
        Session("myperson") = p
    End Sub
End Class

File: NextPage.aspx

<%@ Page Language="VB" AutoEventWireup="false" CodeFile="NextPage.aspx.vb" Inherits="Retrieve" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
    <title>Untitled Page</title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
    
    </div>
    </form>
</body>
</html>

File: NextPage.aspx.vb

Imports Microsoft.VisualBasic
Imports System
Imports System.Web

Partial Class Retrieve
    Inherits SmartSessionPage

    Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgsHandles Me.Load
        Dim As Person = MyPerson
        Response.Write(p' ToString will be called!
    End Sub
End Class


<Serializable()> _
Public Class Person
    Public firstName As String
    Public lastName As String

    Public Overrides Function ToString() As String
        Return String.Format("Person Object: {0} {1}", firstName, lastName)
    End Function
End Class

Public Class SmartSessionPage
    Inherits System.Web.UI.Page

    Private Const MYSESSIONPERSONKEY As String = "myperson"

    Public Property MyPerson() As Person
        Get
            Return CType(Session(MYSESSIONPERSONKEY), Person)
        End Get
        Set(ByVal value As Person)
            Session(MYSESSIONPERSONKEY= value
        End Set
    End Property
End Class
11. 3. Session Variables
11. 3. 1. Using Session State
11. 3. 2. Retrieve the value of an item that you have stored in Session state.
11. 3. 3. Sorting a DataView stored in Session state.
11. 3. 4. Save value in text box to session and read it back (VB.net/C#)
11. 3. 5. Save value to session object and read them back (VB.net)
11. 3. 6. Store user defined object in Session (C#)
11. 3. 7. Setting and retrieving objects from the Session using State Service and a base page (C#)
11. 3. 8. Setting and retrieving objects from the Session using State Service and a base page (VB)
11. 3. 9. A session-aware base page
11. 3. 10. Session counter and application counter (C#)
11. 3. 11. Session counter and application counter (VB)
11. 3. 12. Look for Variables
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