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03.14.2008 at 09:14AM PDT, ID: 23242197
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Javascript call is doing postback on updatePanel instead of only refreshing updatePanel

Asked by smcdrc in Visual Studio .NET 2005, Microsoft Visual Basic.Net, Microsoft Visual C#.Net

Tags: microsoft, ajax asp.net, 2005

I have a masterpage and a content page.  I have a script manager in the masterpage and an updatePanel in the content page.  I want to update the updatepanel via Javascript.  With a masterpage, it is doing a full page postback.  See code below.  When I don't use a masterpage, it works just fine (only updating the updatepanel).   I am using MS Ajax 1.0Start Free Trial 
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Master ASPX
<%@ Master Language="VB" CodeFile="MasterPage.master.vb" Inherits="MasterPage_MasterPage" %>
 
<!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>
    <link rel="SHORTCUT ICON" href="/favicon.ico" />
    <link href="../App_Themes/wpl.css" rel="stylesheet" type="text/css" />
</head>
<body  topmargin="0" leftmargin="0">
 
    <form id="form1" runat="server">
    <div>
         <ajax:ScriptManager ID="ScriptManager1" runat="server" />
    
        <asp:contentplaceholder id="ContentPlaceHolder1" runat="server">
        </asp:contentplaceholder>
    </div>
    </form>
   
</body>
</html>
 
Content ASPX
<%@ Page Language="VB" MasterPageFile="~/MasterPage/MasterPage.master" AutoEventWireup="false" CodeFile="testajax.aspx.vb" Inherits="Help_testajax" title="Untitled Page" %>
 
<asp:Content ID="Content1" ContentPlaceHolderID="ContentPlaceHolder1" Runat="Server">
    <script language="javascript" type="text/javascript">
<!--
function Button3_onclick() {
 
    var prm = Sys.WebForms.PageRequestManager.getInstance();
    prm._doPostBack('Button1', '');
 
}
 
function Button4_onclick() {
 
    var prm = Sys.WebForms.PageRequestManager.getInstance();
    prm._doPostBack('UpdatePanel1', '');
 
}
// -->
</script>
 
   
  
        <br />
        <div>
            <ajax:UpdatePanel ID="UpdatePanel1" runat="server">
                <ContentTemplate>
                    <asp:Label ID="Label1" runat="server" Text="Label" Width="622px"></asp:Label><br />
                    <br />
                    <asp:Button ID="Button1" runat="server" Text="In the Update Panel" Width="618px" />
                </ContentTemplate>
            </ajax:UpdatePanel>
        </div>
        <br />
        <asp:Label ID="Label2" runat="server" Text="Label" Width="622px"></asp:Label><br />
        <br />
        <asp:Button ID="Button2" runat="server" Text="Outside the Update Panel" Width="618px" />
        <br />
        <br />
        <input id="Button3" style="width: 618px" type="button" value="Call Javascript" language="javascript" onclick="return Button3_onclick()" />&nbsp;<br />
        <br />
        <input id="Button4" style="width: 618px" type="button" value="Use Dave Ward's UpdatePanel Method" language="javascript" onclick="return Button4_onclick()" />
        <br />
        <br />
        <asp:LinkButton ID="LinkButton1" runat="server" PostBackUrl="http://www.encosia.com/">Dave Ward's Blog - Encosia</asp:LinkButton>
        <asp:Label ID="Label3" runat="server" Text="Label"></asp:Label>
</asp:Content>
 
Contect ASPX.VB
Partial Class Help_testajax
    Inherits System.Web.UI.Page
    Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
        Label1.Text = "AJAX Postback at : " + DateTime.Now
        Label2.Text = "AJAX Postback at : " + DateTime.Now
        
        If Page.IsPostBack Then
            Label3.Text = "Postback"
        Else
            Label3.Text = "not postback"
        End If
    End Sub
 
    Protected Sub UpdatePanel1_Unload(ByVal sender As Object, ByVal e As System.EventArgs) Handles UpdatePanel1.Unload
 
    End Sub
End Class
[+][-]03.14.2008 at 10:14AM PDT, ID: 21127326

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Zones: Visual Studio .NET 2005, Microsoft Visual Basic.Net, Microsoft Visual C#.Net
Tags: microsoft, ajax asp.net, 2005
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Solution Provided By: TheLearnedOne
Participating Experts: 2
Solution Grade: A
 
 
[+][-]03.14.2008 at 11:26AM PDT, ID: 21128076

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[+][-]03.14.2008 at 11:35AM PDT, ID: 21128148

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[+][-]03.14.2008 at 07:41PM PDT, ID: 21131143

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[+][-]03.15.2008 at 07:48PM PDT, ID: 21135430

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