Question

I’m trying to figure out if I can use the ITemplate interface in a custom control. Here is what I’ve done so far.

public class Tooltip : Control
{
    public ITemplate ContentTemplate { get; set; }

    protected override void CreateChildControls()
    {
        base.CreateChildControls();

        var ctrl = new HtmlGenericControl("a");

        if (ContentTemplate != null)
        {
            ContentTemplate.InstantiateIn(ctrl);
        }

        this.Controls.Add(ctrl);
    }
}

The asp.net control usage

<gc:Tooltip runat="server">
    <ContentTemplate>
        hello
    </ContentTemplate>
</gc:Tooltip>

The idea is that it should return something like this

<a>hello</a>

But the result looks like this

<ContentTemplate>
  hello
</ContentTemplate>
<a></a>

It does include the template tags and seem to ignore whatever I do.

Any advice is appreciated

Answer 1

I was inheriting from the wrong class, when switching to WebControl it started working

public class Tooltip : WebControl