net46 
namespace System.Web.UI.Design
{
    public abstract class TemplatedControlDesigner : ControlDesigner
    {
        [Obsolete("The recommended alternative is ControlDesigner.Tag. http://go.microsoft.com/fwlink/?linkid=14202")]
        protected override void OnBehaviorAttached();
    }
}
.NET Framework 1.01.12.03.03.54.04.54.5.14.5.24.64.6.14.6.24.74.7.14.7.24.84.8.1
Information specific to net46
Assembly

System.Design , Version=4.0.0.0, PublicKeyToken=b03f5f7f11d50a3a

Referencing

Your project needs an assembly reference to System.Design.

Obsolete The recommended alternative is ControlDesigner.Tag. http://go.microsoft.com/fwlink/?linkid=14202
Platform Restrictions

This framework does not have platform annotations.

  • Built-in API
  • Package-provided API