Using the ITemplate in a UserControl and getting a design time rendoring error

[Wokawidget]

Hi,

Here's the code for a simple content usercontrol I am using:

 public partial class ContentPanel : System.Web.UI.UserControl
    {
        [ParseChildren(true, "ContentTemplate")]
        public class ContentContainer : Control, INamingContainer {}

        private ITemplate _contentTemplate;

        [TemplateContainer(typeof(ContentContainer), BindingDirection.TwoWay)]
        [PersistenceMode(PersistenceMode.InnerProperty)]
        [TemplateInstance(TemplateInstance.Single)]
        [Browsable(false)]
        [DesignerSerializationVisibility(DesignerSerializationVisibility.Content)]
        [EditorBrowsable(EditorBrowsableState.Never)]
        public ITemplate ContentTemplate
        {
            get { return this._contentTemplate; }
            set { this._contentTemplate = value; }
        }




        protected override void OnInit(EventArgs e)
        {
            base.OnInit(e);
            if(this._contentTemplate != null)
            {
                ContentContainer container = new ContentContainer();
                this._contentTemplate.InstantiateIn(container);
                this.phContentTemplate.Controls.Add(container);
            }
        }
   }

and the markup is:

<%@ Control Language="C#" AutoEventWireup="true" CodeBehind="ContentPanel.ascx.cs" Inherits="SvratchJScriptWeb.UserControls.ContentPanel" %>

<div id="divPanel" runat="server" style="width:300px">
    <asp:PlaceHolder ID="phContentTemplate" runat="server" />
</div>

So in every page i use this the markup would be like:

<uc1:ContentPanel ID="ContentPanel1" runat="server">    
    <ContentTemplate>
         other controls and stuff goes here
    </ContentTemplate>
</uc1:ContentPanel>

This works at runtime...however the control fails to render at design time with the error:

Error Creating Control - ContentPanel1
Type 'System.Web.UI.UserControl' does not have a public property named 'ContentTemplate'


The odd thing is that the VS IDE intellisence can see that the template is called <ContentTemplate> and hightlights it when I type into the UI source designer...it just fails when looking at design time rendering :s

Has anyone seen this b4?

Woka

[Wokawidget]

Forgot to add that if I miss off the <ContentTemplate> tags in the page then it renders:

<uc1:ContentPanel ID="ContentPanel1" runat="server">    

</uc1:ContentPanel>

When this happens the control gets renderd at design time.
The property ContentTemplate exists in my code, and intelisence inserts <ContentTemplate> for me...odd odd odd odd



Woka

[mendhak]

Scroll down to the comments section of this page.

Continuing from mj1856's comment, I found this combination of attributes gets it working in the designer:


[TemplateContainer(typeof(MessageContainer))]
[PersistenceMode(PersistenceMode.InnerProperty)]
[Browsable(false)]
[DesignerSerializationVisibility(DesignerSerializationVisibility.Content)]
public ITemplate MessageTemplate

[Wokawidget]

Scroll down to the comments section of this page.

Saw that link the other day...not much use tbh Still get the error. The attributes I have posted here are a combination of things people have said will make it work...but none do

Woka

[Wokawidget]

I am just trying to create my own very simple container control for use in my web app.

Woka