using System; namespace Fadd.Commands { /// <summary> /// This delegate is invoked when a command is about to behing invoked or added to the dispatcher. /// <para> /// Throw <see cref="InvalidOperationException"/> if Type may not be handled/invoked. /// </para> /// </summary> /// <param name="source">dispatcher that is being used.</param> /// <param name="args">arguments with info</param> public delegate void ProxyHandler(object source, ProxyHandlerEventArgs args); /// <summary> /// Arguments for <see cref="ProxyHandler"/>. /// </summary> public class ProxyHandlerEventArgs : EventArgs { private readonly Type _type; /// <summary> /// Initializes a new instance of the <see cref="ProxyHandlerEventArgs"/> class. /// </summary> /// <param name="type">Type of command (if Invoke is called) or Type to handle (if Add is called).</param> public ProxyHandlerEventArgs(Type type) { if (type == null) throw new ArgumentNullException("type"); _type = type; } /// <summary> /// Type of command (if Invoke is called) or Type to handle (if Add is called). /// </summary> public Type Type { get { return _type; } } } }
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