asked on how do i dynamically add a user control
hello
this website applies a different masterpage based on the domain.
once the masterpage is applied i want to add different content templates that load different user controls dynamically
error is in my class file
Compilation Error Type 'BreadCrumb' is not defined.
below is my code
--------------
test.aspx
<%@ Page Language="vb" EnableViewState="false" AutoEventWireup="false" MasterPageFile="~/MasterPa
<%@ Reference Control="~/Controls/BreadC
---------------
test.aspx.vb
Public Partial Class test
Inherits System.Web.UI.Page
Protected Sub Page_PreInit(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.PreInit
'code to determine domain and apply correct masterpage (irrelevant to the question)
Dim m As New ApplyMasterPage
Me.Page.MasterPageFile = m.MasterLocation.ToString(
MyBase.AddContentTemplate(
End Sub
End Class
--------------
App_Code/ApplyBreadCrumbCo
Public Class ApplyBreadCrumbContent
Implements System.Web.UI.ITemplate
Dim b As BreadCrumb 'error here
Dim p As Page
Sub InstantiateIn(ByVal container As Control) Implements System.Web.UI.ITemplate.In
b = CType(p.LoadControl("~/Con
container.Controls.Add(b)
End Sub
End Class
---------------
BreadCrumb.ascx
<%@ Control Language="vb" AutoEventWireup="false" CodeBehind="BreadCrumb.asc
'contains a repeater control
--------------------------
BreadCrumb.ascx.vb
Public Partial Class BreadCrumb
Inherits System.Web.UI.UserControl
Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
'contains data to render the repeater
End Sub
End Class
------------------
MasterPage contains a ContentPlaceHolder
<asp:ContentPlaceHolder ID="BreadCrumbContent" runat="server"></asp:Conte
this website applies a different masterpage based on the domain.
once the masterpage is applied i want to add different content templates that load different user controls dynamically
error is in my class file
Compilation Error Type 'BreadCrumb' is not defined.
below is my code
--------------
test.aspx
<%@ Page Language="vb" EnableViewState="false" AutoEventWireup="false" MasterPageFile="~/MasterPa
<%@ Reference Control="~/Controls/BreadC
---------------
test.aspx.vb
Public Partial Class test
Inherits System.Web.UI.Page
Protected Sub Page_PreInit(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.PreInit
'code to determine domain and apply correct masterpage (irrelevant to the question)
Dim m As New ApplyMasterPage
Me.Page.MasterPageFile = m.MasterLocation.ToString(
MyBase.AddContentTemplate(
End Sub
End Class
--------------
App_Code/ApplyBreadCrumbCo
Public Class ApplyBreadCrumbContent
Implements System.Web.UI.ITemplate
Dim b As BreadCrumb 'error here
Dim p As Page
Sub InstantiateIn(ByVal container As Control) Implements System.Web.UI.ITemplate.In
b = CType(p.LoadControl("~/Con
container.Controls.Add(b)
End Sub
End Class
---------------
BreadCrumb.ascx
<%@ Control Language="vb" AutoEventWireup="false" CodeBehind="BreadCrumb.asc
'contains a repeater control
--------------------------
BreadCrumb.ascx.vb
Public Partial Class BreadCrumb
Inherits System.Web.UI.UserControl
Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
'contains data to render the repeater
End Sub
End Class
------------------
MasterPage contains a ContentPlaceHolder
<asp:ContentPlaceHolder ID="BreadCrumbContent" runat="server"></asp:Conte
.NET ProgrammingASP.NET
Last Comment
miguel_j
Try this sample you will get an idea.
Master pages (aspx)
<%@ Master Language="VB" AutoEventWireup="false" CodeBehind="Common.master.
<!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></title>
<asp:ContentPlaceHolder ID="head" runat="server">
</asp:ContentPlaceHolder>
</head>
<body>
<form id="form1" runat="server">
<div>
<asp:ContentPlaceHolder ID="ContentPlaceHolder1" runat="server">
</asp:ContentPlaceHolder>
</div>
</form>
</body>
</html>
<%@ Master Language="VB" AutoEventWireup="false" CodeBehind="Master1.master
<!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></title>
<asp:ContentPlaceHolder ID="head" runat="server">
</asp:ContentPlaceHolder>
</head>
<body>
<form id="form1" runat="server">
<div>
Master1
<asp:ContentPlaceHolder ID="Test1" runat="server">
</asp:ContentPlaceHolder>
</div>
</form>
</body>
</html>
<%@ Master Language="VB" AutoEventWireup="false" CodeBehind="Master2.master
<!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></title>
<asp:ContentPlaceHolder ID="head" runat="server">
</asp:ContentPlaceHolder>
</head>
<body>
<form id="form1" runat="server">
<div>
Master2
<asp:ContentPlaceHolder ID="Test2" runat="server">
</asp:ContentPlaceHolder>
</div>
</form>
</body>
</html>
Template
Public Class Template1
Implements ITemplate
Public Sub InstantiateIn(ByVal container As System.Web.UI.Control) Implements System.Web.UI.ITemplate.In
Dim p As New Page
container.Controls.Add(p.L
End Sub
End Class
Public Class Template2
Implements ITemplate
Public Sub InstantiateIn(ByVal container As System.Web.UI.Control) Implements System.Web.UI.ITemplate.In
container.Controls.Add(con
End Sub
End Class
Usercontrol
<%@ Control Language="vb" AutoEventWireup="false" CodeBehind="User1.ascx.vb"
<asp:Label ID="Label1" runat="server" BackColor="#FF5050" Text="UserControl1"></asp:
<%@ Control Language="vb" AutoEventWireup="false" CodeBehind="User2.ascx.vb"
<asp:Label ID="Label1" runat="server" BackColor="#FF6600" Text="UserControl2"></asp:
Test page aspx
<%@ Page Language="vb" AutoEventWireup="false" CodeBehind="Test.aspx.vb" Inherits="Test.Test" MasterPageFile="~/MasterPa
codebehind
Public Partial Class Test
Inherits System.Web.UI.Page
Private Const masterid As Integer = 1
Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
End Sub
Private Sub Test_PreInit(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.PreInit
If masterid = 0 Then
Me.Page.MasterPageFile = "Master1.Master"
MyBase.AddContentTemplate(
Else
Me.Page.MasterPageFile = "Master2.Master"
MyBase.AddContentTemplate(
End If
End Sub
End Class
Master pages (aspx)
<%@ Master Language="VB" AutoEventWireup="false" CodeBehind="Common.master.
<!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></title>
<asp:ContentPlaceHolder ID="head" runat="server">
</asp:ContentPlaceHolder>
</head>
<body>
<form id="form1" runat="server">
<div>
<asp:ContentPlaceHolder ID="ContentPlaceHolder1" runat="server">
</asp:ContentPlaceHolder>
</div>
</form>
</body>
</html>
<%@ Master Language="VB" AutoEventWireup="false" CodeBehind="Master1.master
<!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></title>
<asp:ContentPlaceHolder ID="head" runat="server">
</asp:ContentPlaceHolder>
</head>
<body>
<form id="form1" runat="server">
<div>
Master1
<asp:ContentPlaceHolder ID="Test1" runat="server">
</asp:ContentPlaceHolder>
</div>
</form>
</body>
</html>
<%@ Master Language="VB" AutoEventWireup="false" CodeBehind="Master2.master
<!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></title>
<asp:ContentPlaceHolder ID="head" runat="server">
</asp:ContentPlaceHolder>
</head>
<body>
<form id="form1" runat="server">
<div>
Master2
<asp:ContentPlaceHolder ID="Test2" runat="server">
</asp:ContentPlaceHolder>
</div>
</form>
</body>
</html>
Template
Public Class Template1
Implements ITemplate
Public Sub InstantiateIn(ByVal container As System.Web.UI.Control) Implements System.Web.UI.ITemplate.In
Dim p As New Page
container.Controls.Add(p.L
End Sub
End Class
Public Class Template2
Implements ITemplate
Public Sub InstantiateIn(ByVal container As System.Web.UI.Control) Implements System.Web.UI.ITemplate.In
container.Controls.Add(con
End Sub
End Class
Usercontrol
<%@ Control Language="vb" AutoEventWireup="false" CodeBehind="User1.ascx.vb"
<asp:Label ID="Label1" runat="server" BackColor="#FF5050" Text="UserControl1"></asp:
<%@ Control Language="vb" AutoEventWireup="false" CodeBehind="User2.ascx.vb"
<asp:Label ID="Label1" runat="server" BackColor="#FF6600" Text="UserControl2"></asp:
Test page aspx
<%@ Page Language="vb" AutoEventWireup="false" CodeBehind="Test.aspx.vb" Inherits="Test.Test" MasterPageFile="~/MasterPa
codebehind
Public Partial Class Test
Inherits System.Web.UI.Page
Private Const masterid As Integer = 1
Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
End Sub
Private Sub Test_PreInit(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.PreInit
If masterid = 0 Then
Me.Page.MasterPageFile = "Master1.Master"
MyBase.AddContentTemplate(
Else
Me.Page.MasterPageFile = "Master2.Master"
MyBase.AddContentTemplate(
End If
End Sub
End Class
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thank you for your help and also thanks for the other additions experts
Below url give some information
http://www.asp.net/(S(wnmvzu45umnszm455c1qs522))/learn/ajax-videos/video-286.aspx
http://www.aspfree.com/c/a/ASP.NET/Dynamically-Loading-User-Controls-in-ASPNET/