Cross-page post (VB.net) : Cross Page Posting « Page Lifecycle « ASP.NET Tutorial






<%@ Page Language="VB" %>

<!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 Button1_Click(ByVal sender As Object, ByVal e As System.EventArgs)
        Label1.Text = "Hello " & TextBox1.Text & "<br />" & "Date Selected: " & Calendar1.SelectedDate.ToShortDateString()
    End Sub
</script>

<html xmlns="http://www.w3.org/1999/xhtml" >
<head id="Head1" runat="server">
    <title>First Page</title>
</head>
<body>
    <form id="form1" runat="server">
        Enter your name:<br />
        <asp:Textbox ID="TextBox1" Runat="server"/>
        When do you want to fly?<br />
        <asp:Calendar ID="Calendar1" Runat="server"/>
        <br />
        <asp:Button ID="Button1" Runat="server" Text="Submit page to itself" 
         OnClick="Button1_Click" />
        <asp:Button ID="Button2" Runat="server" Text="Submit page to NextPage.aspx"
         PostBackUrl="NextPage.aspx" />
        <asp:Label ID="Label1" Runat="server"/>
    </form>
</body>
</html>


File: NextPage.aspx

<%@ Page Language="VB" %>

<!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 myTextbox1 As TextBox
        Dim myCalendar1 As Calendar
        
        myTextbox1 = CType(PreviousPage.FindControl("Textbox1"), TextBox)
        myCalendar1 = CType(PreviousPage.FindControl("Calendar1"), Calendar)
        
        Label1.Text = "Hello " & myTextbox1.Text & "<br />" & _
            "Date Selected: " & myCalendar1.SelectedDate.ToShortDateString()
    End Sub
</script>

<html xmlns="http://www.w3.org/1999/xhtml" >
<head id="Head1" runat="server">
    <title>Second Page</title>
</head>
<body>
    <form id="form1" runat="server">
        <asp:Label ID="Label1" Runat="server"></asp:Label>
    </form>
</body>
</html>








5.7.Cross Page Posting
5.7.1.New Cross-Page Posting
5.7.2.Exposing the values of the control from a Property
5.7.3.Page.IsCrossPagePostBack
5.7.4.Cross-page post (VB.net)
5.7.5.Page level property (VB.net)
5.7.6.PreviousPageType directive