Ajax UpdatePanel

Hi guys, how do i use AJAX updatePanel from default.aspx to display information from other aspx pages(e.g. default1.aspx) when i click on a button in default.aspx ? or is there any other ways so that i can achieve that ? examples on how to do it are greatly appreciated ...

Make the content from other pages into a UserControl instead of a full page.
That should make it easier to place within your update panel.

UserControls are good when you want to reuse the content in more than one page.

In general when developing a Web App, I personally create only one Main .ASPX page, and generate all the others needed as user control (.ASCX) pages..

Of course this requires you to switch in and out the controls depending on the page parameters passed, however once you get the hang of it it's relatively easy ..

Some sample code

MAIN.ASPX Designer

Code:

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<%@ Control Language="vb" AutoEventWireup="false" CodeBehind="Main.aspx.vb" Inherits="Forums.Main" %>
<%@ Register src="Header.ascx" tagname="Header" tagprefix="uc1" %>
<%@ Register src="Catalogs.ascx" tagname="Catalogs" tagprefix="uc2" %>
<%@ Register src="Topics.ascx" tagname="Topics" tagprefix="uc4" %>
<%@ Register src="Posts.ascx" tagname="Posts" tagprefix="uc5" %>
<%@ Register src="NewPost.ascx" tagname="NewPost" tagprefix="uc6" %>
<%@ Register src="Footer.ascx" tagname="Footer" tagprefix="uc3" %>
<asp:Panel Width="100%">
<uc1:Header ID="Header1" runat="server" />
<uc2:Catalogs ID="Catalogs1" runat="server" />
<uc4:Topics ID="Topics1" runat="server" />
<uc5:Posts ID="Posts1" runat="server" />
<uc6:NewPost ID="NewPost1" runat="server" />
<uc3:Footer ID="Footer1" runat="server" />
</asp:Panel>

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And then in the Code

Code:

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    Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
        UserAgent = Request.ServerVariables("http_user_agent")
        'get last IP
        LastIp = Request.ServerVariables("HTTP_X_FORWARDED_FOR")
        If Not LastIp Is Nothing Then
            FIps = Split(LastIp, ",", -1, CompareMethod.Text)
            LastIp = FIps(FIps.Length - 1)
        Else
            LastIp = Request.ServerVariables("REMOTE_ADDR")
        End If
        If Not IsPostBack Then
            If Request.QueryString("Cat") IsNot Nothing Then
                Catalogs1.Visible = True
            ElseIf Request.QueryString("Group") IsNot Nothing Then
                Catalogs1.Visible = True
            ElseIf Request.QueryString("Do") IsNot Nothing Then
                NewPost1.Visible = True
                Footer1.Visible = False
            ElseIf Request.QueryString("Forum") IsNot Nothing Then
                Topics1.Visible = True
            ElseIf Request.QueryString("Topic") IsNot Nothing Then
                Posts1.Visible = True
                Footer1.Visible = False
            ElseIf Request.QueryString("Reply") IsNot Nothing Then
                Posts1.Visible = True
                Footer1.Visible = False
            Else
                Catalogs1.Visible = True
            End If
        End If

    End Sub

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