VB.NET的代码转为C#
Dim WithEvents RecoContext As SpeechLib.SpSharedRecoContext
Dim Grammar As SpeechLib.ISpeechRecoGrammar

Dim m_bRecoRunning As Boolean
Dim m_cChars As Short


Private Sub SimpleDict_Load(ByVal eventSender As System.Object, ByVal eventArgs As System.EventArgs) Handles MyBase.Load
SetState(False)
m_cChars = 0
End Sub

Private Sub btnStart_Click(ByVal eventSender As System.Object, ByVal eventArgs As System.EventArgs) Handles btnStart.Click
System.Diagnostics.Debug.Assert(Not m_bRecoRunning, "")
If (RecoContext Is Nothing) Then
  RecoContext = New SpeechLib.SpSharedRecoContext
  Grammar = RecoContext.CreateGrammar(1)
  Grammar.DictationLoad()
  End If

Grammar.DictationSetState(SpeechLib.SpeechRuleState.SGDSActive)
SetState(True)
End Sub

Private Sub btnStop_Click(ByVal eventSender As System.Object, ByVal eventArgs As System.EventArgs) Handles btnStop.Click
System.Diagnostics.Debug.Assert(m_bRecoRunning, "")
Grammar.DictationSetState(SpeechLib.SpeechRuleState.SGDSInactive)
SetState(False)
End Sub


Private Sub RecoContext_Recognition(ByVal StreamNumber As Integer, ByVal StreamPosition As Object, ByVal RecognitionType As SpeechLib.SpeechRecognitionType, ByVal Result As SpeechLib.ISpeechRecoResult) Handles RecoContext.Recognition
Dim strText As String
strText = Result.PhraseInfo.GetText
txtSpeech.SelectionStart = m_cChars
txtSpeech.SelectedText = strText & " "
m_cChars = m_cChars + 1 + Len(strText)
End Sub
Private Sub SetState(ByVal bNewState As Boolean)
  m_bRecoRunning = bNewState
  btnStart.Enabled = Not m_bRecoRunning
  btnStop.Enabled = m_bRecoRunning
  End Sub


这段代码如何转为C#呢?

------解决方案--------------------
http://labs.developerfusion.co.uk/convert/vb-to-csharp.aspx
------解决方案--------------------

C# code

SpeechLib.SpSharedRecoContext RecoContext; 
SpeechLib.ISpeechRecoGrammar Grammar; 
bool m_bRecoRunning; 
short m_cChars; 



private void SimpleDict_Load(object eventSender, System.EventArgs eventArgs) 
{ 
    SetState(false); 
    m_cChars = 0; 
} 

private void btnStart_Click(object eventSender, System.EventArgs eventArgs) 
{ 
    System.Diagnostics.Debug.Assert(!m_bRecoRunning, ""); 
    if ((RecoContext == null)) { 
        RecoContext = new SpeechLib.SpSharedRecoContext(); 
        Grammar = RecoContext.CreateGrammar(1); 
        Grammar.DictationLoad(); 
    } 
    
    Grammar.DictationSetState(SpeechLib.SpeechRuleState.SGDSActive); 
    SetState(true); 
} 

private void btnStop_Click(object eventSender, System.EventArgs eventArgs) 
{ 
    System.Diagnostics.Debug.Assert(m_bRecoRunning, ""); 
    Grammar.DictationSetState(SpeechLib.SpeechRuleState.SGDSInactive); 
    SetState(false); 
} 


private void RecoContext_Recognition(int StreamNumber, object StreamPosition, SpeechLib.SpeechRecognitionType RecognitionType, SpeechLib.ISpeechRecoResult Result) 
{ 
    string strText; 
    strText = Result.PhraseInfo.GetText; 
    txtSpeech.SelectionStart = m_cChars; 
    txtSpeech.SelectedText = strText + " "; 
    m_cChars = m_cChars + 1 + Strings.Len(strText); 
} 
private void SetState(bool bNewState) 
{ 
    m_bRecoRunning = bNewState; 
    btnStart.Enabled = !m_bRecoRunning; 
    btnStop.Enabled = m_bRecoRunning; 
}