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Dobrý den, mám vytvořený UserControl (WebUserControl1), po umístění UC do požadované stránky a přepnutí do modu "Design" Visual Studio 2010 Profi nezobrazí obsah UC ale vypíše Error Creating Control - WebUserControl11 (Type 'System.Web.UI.UserControl') does not have property named 'Title Template'.

Pomuže někdo?

<%@ Register src="UserControls/WebUserControl1.ascx" tagname="WebUserControl1" tagprefix="uc2" %>
    <uc2:WebUserControl1 ID="WebUserControl11" runat="server">
    <TitleTemplate>
    A
    </TitleTemplate>
    <FooterTemplate>
    B
    </FooterTemplate>
    <DescriptionTemplate>
    C
    </DescriptionTemplate>
    </uc2:WebUserControl1>

<%@ Control Language="vb" AutoEventWireup="false" CodeBehind="WebUserControl1.ascx.vb" Inherits="PopUp.WebUserControl1" %>

<div class="contentBox">
<asp:PlaceHolder ID="myTitle" runat="server"></asp:PlaceHolder>
<asp:PlaceHolder ID="myDescription" runat="server"></asp:PlaceHolder>
<asp:PlaceHolder ID="myFooter" runat="server"></asp:PlaceHolder>
</div>

Imports System.Collections
Imports System.Configuration
Imports System.Data
Imports System.Linq
Imports System.Web
Imports System.Web.Security
Imports System.Web.UI
Imports System.Web.UI.HtmlControls
Imports System.Web.UI.WebControls
Imports System.Web.UI.WebControls.WebParts
Imports System.Xml.Linq

<ParseChildren(True)> _
Public Class WebUserControl1
    Inherits System.Web.UI.UserControl

    Private _title As ITemplate
    Private _description As ITemplate
    Private _footer As ITemplate

    <PersistenceMode(PersistenceMode.InnerProperty), TemplateContainer(GetType(TemplateControl))> _
    Public Property TitleTemplate() As ITemplate
        Get
            Return _title
        End Get
        Set(value As ITemplate)
            _title = value
        End Set
    End Property

    <PersistenceMode(PersistenceMode.InnerProperty), TemplateContainer(GetType(TemplateControl))> _
    Public Property DescriptionTemplate() As ITemplate
        Get
            Return _description
        End Get
        Set(value As ITemplate)
            _description = value
        End Set
    End Property

    <PersistenceMode(PersistenceMode.InnerProperty), TemplateContainer(GetType(TemplateControl))> _
    Public Property FooterTemplate() As ITemplate
        Get
            Return _footer
        End Get
        Set(value As ITemplate)
            _footer = value
        End Set
    End Property

    Protected Sub Page_Load(sender As Object, e As EventArgs)

    End Sub

    Protected Overrides Sub OnInit(e As EventArgs)
        MyBase.OnInit(e)
        If _title IsNot Nothing Then
            _title.InstantiateIn(myTitle)
        End If
        If _description IsNot Nothing Then
            _description.InstantiateIn(myDescription)
        End If
        If _footer IsNot Nothing Then
            _footer.InstantiateIn(myFooter)
        End If
    End Sub
End Class