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comparison MetroWpf/MetroWpf.Xaml/Binding/BindingErrorTraceListener.cs @ 15:060f02cd4591

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Initial commit, pre airport work
author stevenh7776 stevenhollidge@hotmail.com
date Mon, 12 Mar 2012 23:05:21 +0800
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14:741981715d94 15:060f02cd4591
1 // http://www.switchonthecode.com/tutorials/wpf-snippet-detecting-binding-errors
2
3 using System.Diagnostics;
4 using System.Text;
5 using System.Windows;
6
7 namespace MetroWpf.Xaml.Binding
8 {
9 public class BindingErrorTraceListener : DefaultTraceListener
10 {
11 private static BindingErrorTraceListener _listener;
12
13
14 private readonly StringBuilder _message = new StringBuilder();
15
16 private BindingErrorTraceListener()
17 {
18 }
19
20 public override void Write(string message)
21 {
22 _message.Append(message);
23 }
24
25 public override void WriteLine(string message)
26 {
27 _message.Append(message);
28
29 var final = _message.ToString();
30 _message.Length = 0;
31
32 MessageBox.Show(final,
33 "Binding Error",
34 MessageBoxButton.OK,
35 MessageBoxImage.Error);
36 }
37
38 public static void CloseTrace()
39 {
40 if (_listener == null)
41 {
42 return;
43 }
44
45 _listener.Flush();
46 _listener.Close();
47 PresentationTraceSources.DataBindingSource.Listeners.Remove(_listener);
48 _listener = null;
49 }
50
51 [Conditional("DEBUG")]
52 public static void SetTrace()
53 {
54 SetTrace(SourceLevels.Error, TraceOptions.None);
55 }
56
57 public static void SetTrace(SourceLevels level, TraceOptions options)
58 {
59 if (_listener == null)
60 {
61 _listener = new BindingErrorTraceListener();
62 PresentationTraceSources.DataBindingSource.Listeners.Add(_listener);
63 }
64
65 _listener.TraceOutputOptions = options;
66 PresentationTraceSources.DataBindingSource.Switch.Level = level;
67 }
68 }
69 }