class/System.Windows/System.Windows.Threading/DispatcherOperation.cs

   1 //
   2 // DispatcherTimer.cs
   3 //
   4 // Copyright 2008 Novell, Inc.
   5 //
   6 // Permission is hereby granted, free of charge, to any person obtaining
   7 // a copy of this software and associated documentation files (the
   8 // "Software"), to deal in the Software without restriction, including
   9 // without limitation the rights to use, copy, modify, merge, publish,
  10 // distribute, sublicense, and/or sell copies of the Software, and to
  11 // permit persons to whom the Software is furnished to do so, subject to
  12 // the following conditions:
  13 //
  14 // The above copyright notice and this permission notice shall be
  15 // included in all copies or substantial portions of the Software.
  16 //
  17 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  18 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  19 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  20 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  21 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  22 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  23 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  24 //
  25
  26 using System;
  27 using System.Reflection;
  28
  29 namespace System.Windows.Threading {
  30
  31         [CLSCompliant (false)]
  32         public sealed class DispatcherOperation {
  33                 Delegate d;
  34                 object[] args;
  35
  36                 internal DispatcherOperation (Delegate d, object[] args)
  37                 {
  38                         this.d = d;
  39                         this.args = args;
  40                 }
  41
  42                 internal void Invoke ()
  43                 {
  44                         try {
  45                                 d.DynamicInvoke (args);
  46                         } catch (TargetInvocationException tie) {
  47                                 // the unhandled exception is the inner exception, not the TargetInvocationException
  48                                 Application.OnUnhandledException (this, tie.InnerException);
  49                         } catch (Exception ex) {
  50                                 Application.OnUnhandledException (this, ex);
  51                         }
  52                 }
  53
  54                 internal string GetDebugString ()
  55                 {
  56                         return (d != null && d.Method != null ? d.Method.ToString () : "null") + " (" + (args != null ? args.ToString () : "null") + ")";
  57                 }
  58         }
  59 }