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// -----------------------------------------------------------------------
// Copyright (c) Microsoft Corporation. All rights reserved.
// -----------------------------------------------------------------------
#if !SILVERLIGHT
using System;
using System.Linq;
using System.Diagnostics;
using System.Collections.Generic;
namespace System.ComponentModel.Composition.Diagnostics
{
public partial class TraceContext : IDisposable
{
private readonly SourceLevels _previousLevel = TraceSourceTraceWriter.Source.Switch.Level;
private readonly TraceContextTraceListener _listener = new TraceContextTraceListener();
public TraceContext(SourceLevels level)
{
TraceSourceTraceWriter.Source.Switch.Level = level;
TraceSourceTraceWriter.Source.Listeners.Add(_listener);
}
[CLSCompliant(false)]
public TraceEventDetails LastTraceEvent
{
get { return _listener.TraceEvents.LastOrDefault(); }
}
[CLSCompliant(false)]
public IList<TraceEventDetails> TraceEvents
{
get { return _listener.TraceEvents; }
}
public void Dispose()
{
TraceSourceTraceWriter.Source.Listeners.Remove(_listener);
TraceSourceTraceWriter.Source.Switch.Level = _previousLevel;
}
}
}
#endif
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