[RESOLVED] How to access to a control in nested master page
Hi everyone, I've a very strange problem!
There are 2 master page in my web project:
the first one is MasterPageA.Master which has some controls; the second one is MasterPageB.Master which is son of MasterPageA and it has some other controls.
There is also another page, named Default1.aspx, which is son of MasterPageB.Master.
I need to access to a label control put in the Content part of MasterPageB.Master.
I tried to fit the code that I usually use for one level (Master-Son) found at this page and I've write in Default.aspx.vb this code:
Code:
Dim oContent As Content, oLabel as Label
oContent = CType(Master.FindControl("Content1"), Content)
If Not oContent Is Nothing Then
oLabel = CType(oContent.FindControl("lblContatti"), Label)
Endif
These are the definitions (just the relevant code) of MasterPageA.Master and MasterPageB.Master:
MasterPageA.Master
Code:
...cut...
<asp:ContentPlaceHolder id="ContentPlaceHolder1" runat="server">
</asp:ContentPlaceHolder>
...cut....
MasterPageB.Master
Code:
<asp:Content ID="Content1" ContentPlaceHolderID="ContentPlaceHolder1" Runat="Server">
<asp:Label ID="lblContatti" runat="server" Text="E-Mail" CssClass="lblSchedaArticolo"></asp:Label>
</asp:Content>
....
....
Any help is appreciated.
Best regards
Maurice
Re: How to access to a control in nested master page
Re: How to access to a control in nested master page
Hi Gary,
I've found the article during my search on the Internet.
Imagine that in the second master page I've this situation:
Code:
<asp:Content ID="Content1" ContentPlaceHolderID="head" Runat="Server">
<asp:Label ID="Label1" runat="server" Text="Label"></asp:Label>
<asp:ContentPlaceHolder ID="ContentPlaceHolder2" runat=server>
</asp:ContentPlaceHolder>
</asp:Content>
and in the content page (default.aspx), I need to access at the label control.
I hope my explanation is clearer than the same of the first post!
Thank you
Re: How to access to a control in nested master page
Hey,
The technique is the same though. That label lives within the ContentPlaceHolder of the First Master Page, so from the actual content page, you have to go up through two master pages, and then start to come down again. This is code that I have just used, and know works.
First Master Page
Code:
<%@ Master Language="VB" AutoEventWireup="false" CodeBehind="MasterPage.master.vb" Inherits="NestedMasterPages.MasterPage" %>
<html xmlns="http://www.w3.org/1999/xhtml" >
<head id="Head1" runat="server">
<title>Outer Master Page</title>
<asp:ContentPlaceHolder ID="head" runat="server">
</asp:ContentPlaceHolder>
</head>
<body>
<form id="form1" runat="server">
<div>
<h3>Outer Master Page</h3>
<asp:ContentPlaceHolder ID="ContentPlaceHolder1" runat="server">
</asp:ContentPlaceHolder>
</div>
</form>
</body>
</html>
Second Master Page
Code:
<%@ Master Language="VB" MasterPageFile="~/MasterPage.master" AutoEventWireup="false" CodeBehind="MasterPage2.master.vb" Inherits="NestedMasterPages.MasterPage2" %>
<asp:Content ID="Content1" ContentPlaceHolderID="head" Runat="Server">
</asp:Content>
<asp:Content ID="Content2" ContentPlaceHolderID="ContentPlaceHolder1"
Runat="Server">
<h3>Inner Master Page</h3>
<%-- This is the label I assume you are referring to --%>
<asp:Label ID="Label1" runat="server" Text="Label"></asp:Label>
<asp:ContentPlaceHolder ID="ContentPlaceHolder2" runat=server>
</asp:ContentPlaceHolder>
</asp:Content>
Content Page
Code:
<%@ Page Language="vb" MasterPageFile="~/MasterPage2.master" AutoEventWireup="false" CodeBehind="Default.aspx.vb" Inherits="NestedMasterPages._Default" %>
<asp:Content ID="Content1" runat="server"
contentplaceholderid="ContentPlaceHolder2">
<asp:Label ID="Label2" runat="server" Text="Label"></asp:Label>
<asp:Button ID="Button1" runat="server" Text="Button" />
</asp:Content>
Code Behind
Code:
Public Partial Class _Default
Inherits System.Web.UI.Page
Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
' Outer Master Page
Dim Outer_CP As ContentPlaceHolder
Outer_CP = TryCast(Me.Master.Master.FindControl("ContentPlaceHolder1"), _
ContentPlaceHolder)
Dim lbl As Label = TryCast(Outer_CP.FindControl("Label1"), Label)
lbl.Text = "Text was changed inside nested master page!"
End Sub
End Class
Hope that helps!!
Gary
Re: How to access to a control in nested master page
Hi Gary,
it works well...
Thank's a lot!
Re: [RESOLVED] How to access to a control in nested master page
Hey,
Not a problem at all. Happy to help!
Gary
Re: [RESOLVED] How to access to a control in nested master page
Re: [RESOLVED] How to access to a control in nested master page
Quote:
Originally Posted by
furqanbutt
thx .. it works ...
Wow, this is an older thread! Glad that it helped you though!
Gary
