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VB.Net Tutorial/Development/Debug - История изменений
2026-04-05T12:59:11Z
История изменений этой страницы в вики
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http://www.vbex.ru/index.php?title=VB.Net_Tutorial/Development/Debug&diff=2903&oldid=prev
в 16:40, 26 мая 2010
2010-05-26T16:40:30Z
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<td colspan="1" style="background-color: white; color:black; text-align: center;">Версия 16:40, 26 мая 2010</td>
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http://www.vbex.ru/index.php?title=VB.Net_Tutorial/Development/Debug&diff=2904&oldid=prev
Admin: 1 версия
2010-05-26T12:53:42Z
<p>1 версия</p>
<p><b>Новая страница</b></p><div>==Convert Debug message to a file==<br />
<br />
<br />
<br />
<source lang="vbnet">Imports System.IO<br />
Imports System.Diagnostics<br />
Module Module1<br />
Sub Main()<br />
Dim Str As New FileStream("C:\DebugMessages.txt", System.IO.FileMode.Append)<br />
Dim DebugFile As New StreamWriter(Str)<br />
Dim Listener = New TextWriterTraceListener(DebugFile)<br />
Debug.Listeners.Add(Listener)<br />
Debug.AutoFlush = True<br />
Debug.WriteLine("")<br />
Debug.WriteLine("Messages generated at " & Now())<br />
Debug.WriteLine("In Button Click")<br />
Debug.WriteLine("Calling First")<br />
First()<br />
Debug.WriteLine("Exiting Button Click")<br />
Debug.Listeners.Remove(Listener)<br />
Str.Close()<br />
<br />
End Sub<br />
Private Sub First()<br />
Debug.WriteLine("In First")<br />
Debug.WriteLine("Calling Second")<br />
Second()<br />
Debug.WriteLine("Back in First")<br />
End Sub<br />
Private Sub Second()<br />
Debug.WriteLine("In Second")<br />
End Sub<br />
End Module</source><br />
<br />
==Debug Status==<br />
<br />
<br />
<br />
<source lang="vbnet">Imports System.Diagnostics<br />
Imports System.IO<br />
Module Module1<br />
Sub Main()<br />
Dim Str As FileStream<br />
Dim Listener As TextWriterTraceListener<br />
If (Debugger.IsAttached) Then<br />
Console.WriteLine("Debugging")<br />
Str = New FileStream("C:\DebugMessages.txt", System.IO.FileMode.Append)<br />
Dim DebugFile As New StreamWriter(Str)<br />
Listener = New TextWriterTraceListener(DebugFile)<br />
Debug.Listeners.Add(Listener)<br />
Debug.AutoFlush = True<br />
Else<br />
Console.WriteLine("Not debugging")<br />
End If<br />
<br />
Debug.WriteLine("")<br />
Debug.WriteLine("Messages generated at " & Now())<br />
Debug.WriteLine("In Button Click")<br />
Debug.WriteLine("Calling First")<br />
First()<br />
Debug.WriteLine("Exiting Button Click")<br />
If (Debugger.IsAttached) Then<br />
Debug.Listeners.Remove(Listener)<br />
Str.Close()<br />
Console.WriteLine("Done")<br />
End If<br />
<br />
End Sub<br />
Private Sub First()<br />
Debug.WriteLine("In First")<br />
Debug.WriteLine("Calling Second")<br />
Second()<br />
Debug.WriteLine("Back in First")<br />
End Sub<br />
Private Sub Second()<br />
Debug.WriteLine("In Second")<br />
End Sub<br />
End Module</source><br />
<pre class=codeResult>Not debugging</pre><br />
<br />
==Use Debug.Assert==<br />
<br />
<br />
<br />
<source lang="vbnet">Imports System.IO<br />
Module Module1<br />
Sub Main()<br />
Dim FileStr As StreamWriter<br />
System.Diagnostics.Debug.Assert(Not (FileStr Is Nothing), "FileStr is NULL")<br />
System.Diagnostics.Debug.Assert(Directory.Exists("\Temp"), "\Temp does not exist")<br />
End Sub<br />
End Module</source></div>
Admin