Using Silverlight in Enterprise: RAD of User Friendly Database Access

/********************************************************************
 *  FulcrumWeb RAD Framework - Fulcrum of your business             *
 *  Copyright (c) 2002-2009 FulcrumWeb, ALL RIGHTS RESERVED         *
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 *  THE SOURCE CODE CONTAINED WITHIN THIS FILE AND ALL RELATED      *
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using System;
using Framework.Silverlight.Client.AppServer;

namespace Framework.Silverlight.Client
{
  /// <summary>
  /// Provides features for calling to ClearHistory() webservice method.
  /// </summary>
  public class CxClearHistoryHandler : CxCallWebserviceHandler<IxAppServerClient,
      ClearHistoryCompletedEventArgs, CxModel>
  {
    public CxClearHistoryHandler(AsyncResultHandler<CxModel> resultHandler) : base(resultHandler)
    {
    }
    //----------------------------------------------------------------------------
    /// <summary>
    /// Gets the webservise method name to calling.
    /// Must be overriden to get real method name.
    /// </summary>
    protected override string MethodName
    {
      get { return "ClearHistoryAsync"; }
    }
    //----------------------------------------------------------------------------
    /// <summary>
    /// Must be overriden to assign 'Completed' event.
    /// Workaround. Because is not possible to assign event handler with generic parameters using Reflection.
    /// </summary>
    protected override void AddAsyncEventHandler()
    {
      ServiceClient.ClearHistoryCompleted += AsyncInvokeCompleted;
    }
    //----------------------------------------------------------------------------
    /// <summary>
    /// Performs tasks related to unassign events, etc.
    /// </summary>
    protected override void Detach(Guid marker)
    {
      ServiceClient.ClearHistoryCompleted -= AsyncInvokeCompleted;
      base.Detach(marker);
    }
  }
}