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Hello and TIA.

I have a very simple server control that has one property that needs
to be rendered in an ITemplate. I can't seem to figure out why it
won't render with the <%# Container.Value%> syntax inside the
declarative template.

The container control for the template is being instantiated
correctly.

It should be said that this control lives within a Repeater
ItemTemplate which I suspect is the reason for this not working.

Relative Code:
---

[ParseChildren(true)]
public class CustomData : WebControl, INamingContainer
{
private ITemplate content;
private string currentValue;

protected override void CreateChildControls()
{
if( !ChildControlsCreated )
{
IDataRetriever retriever = DataRetriever.Create(dataType, article,
forceFetch, label);

currentValue = retriever.ValueString;

InstantiateTemplate(content);

ChildControlsCreated = true;
}
}

private void InstantiateTemplate(ITemplate template)
{
if(template == null)
{
template = new DefaultTemplate( currentValue );
}

DataContainer container = new DataContainer(currentValue);
template.InstantiateIn(container);
Controls.Add( container );
}

#region Properties

[PersistenceMode( PersistenceMode.InnerProperty )]
[TemplateContainer(typeof(DataContainer))]
[Browsable(false)]
public ITemplate Content
{
get { return content; }
set { content = value; }
}

#endregion
}
}

public class DataContainer : Control, INamingContainer
{
private string value;

public DataContainer(string value)
{
this.value = value;
}

public string Value
{
get { return value; }
set { this.value = value; }
}
}

ASPX:
---
<cc1:CustomData ID="CustomData2" DataType="ShortString" runat="server"
Label="City">
<Content>(CityIsHereButNotShowing[<%# Container.Value%>])</Content>
</cc1:CustomData>

Please help!!!

Thanks again,
Chris Martin

Have you overridden DataBind method to recreate child controls?

Something like:

public override void DataBind()
{
ChildControlsCreated = false;
CreateChildControls();
ChildControlsCreated = true;
base.DataBind();

}

You don't also need to check ChildControlsCreated in CreateChildControls,
calling EnsureChildControls will do that. And in CreateChildControls the
first line should be Controls.Clear();


--
Teemu Keiski
AspInsider, ASP.NET MVP
http://blogs.aspadvice.com/joteke
http://teemukeiski.net


"cmartinbot" <> wrote in message
news: ups.com...
> Hello and TIA.
>
> I have a very simple server control that has one property that needs
> to be rendered in an ITemplate. I can't seem to figure out why it
> won't render with the <%# Container.Value%> syntax inside the
> declarative template.
>
> The container control for the template is being instantiated
> correctly.
>
> It should be said that this control lives within a Repeater
> ItemTemplate which I suspect is the reason for this not working.
>
> Relative Code:
> ---
>
> [ParseChildren(true)]
> public class CustomData : WebControl, INamingContainer
> {
> private ITemplate content;
> private string currentValue;
>
> protected override void CreateChildControls()
> {
> if( !ChildControlsCreated )
> {
> IDataRetriever retriever = DataRetriever.Create(dataType, article,
> forceFetch, label);
>
> currentValue = retriever.ValueString;
>
> InstantiateTemplate(content);
>
> ChildControlsCreated = true;
> }
> }
>
> private void InstantiateTemplate(ITemplate template)
> {
> if(template == null)
> {
> template = new DefaultTemplate( currentValue );
> }
>
> DataContainer container = new DataContainer(currentValue);
> template.InstantiateIn(container);
> Controls.Add( container );
> }
>
> #region Properties
>
> [PersistenceMode( PersistenceMode.InnerProperty )]
> [TemplateContainer(typeof(DataContainer))]
> [Browsable(false)]
> public ITemplate Content
> {
> get { return content; }
> set { content = value; }
> }
>
> #endregion
> }
> }
>
> public class DataContainer : Control, INamingContainer
> {
> private string value;
>
> public DataContainer(string value)
> {
> this.value = value;
> }
>
> public string Value
> {
> get { return value; }
> set { this.value = value; }
> }
> }
>
> ASPX:
> ---
> <cc1:CustomData ID="CustomData2" DataType="ShortString" runat="server"
> Label="City">
> <Content>(CityIsHereButNotShowing[<%# Container.Value%>])</Content>
> </cc1:CustomData>
>
> Please help!!!
>
> Thanks again,
> Chris Martin
>