C＃语音识别短语的一部分-windows.speech

Question

I am using Windows.Speech API What I am trying to do is get the system to recognize part of a phrase rather than look for the whole thing. For instance, if I load the the string with: "How are you", it requires the user to say exactly, how are you. ultimately, I would like Windows.Speech to recognize something like this too: "Hey How are you today".

Here is what I currently have:

//This is used for Building the recognizer engine. 
Choices commands = new Choices();
commands.Add(new string[] { Question5, 
Question1,Question3,Question2,Question4});
GrammarBuilder gBuilder = new GrammarBuilder();
gBuilder.Append(commands);
Grammar grammar = new Grammar(gBuilder);

//Loading the Grammar engine
recEngine.LoadGrammarAsync(grammar);
recEngine.SetInputToDefaultAudioDevice();
recEngine.SpeechRecognized += recEngine_SpeechRecognized;

Then for display:

void recEngine_SpeechRecognized(object sender, SpeechRecognizedEventArgs e)
{
    if (e.Result.Text == Question1)
    {
        richTextBox1.Text += "\nYou have Asked Question 1";
        chkBoxQ1.Checked = true;
        agentScore = agentScore + 1;
        stopCussing = Response1;
        Form2 responseForm = new Form2();
        responseForm.Show();
        Question1Answer = "Question Asked";
        txtBoxAnswer1.Enabled = true;
    }
    else if (e.Result.Text == Question2)
    {
        richTextBox1.Text += "\nYou have now asked Question 2";
        chkQuestion2.Checked = true;
        stopCussing = Response2;
        Form2 responseForm = new Form2();
        responseForm.Show();
        agentScore = agentScore + 1;
        Question2Answer = "Question Asked";
        txtAnswer2.Enabled = true;
    }
    else if (e.Result.Text == Question3)
    {
        richTextBox1.Text += "\nYou have now asked Question 3";
        chkQuestion3.Checked = true;
        stopCussing = Response3;
        Form2 responseForm = new Form2();
        responseForm.Show();
        agentScore = agentScore + 1;
        Question3Answer = "Question Asked";
        txtAnswer3.Enabled = true;
    }
    else if (e.Result.Text == Question4)
    {
        richTextBox1.Text += "\nYou have now asked Question 4";
        chkQuestion4.Checked = true;
        stopCussing = Response4;
        Form2 responseForm = new Form2();
        responseForm.Show();
        agentScore = agentScore + 1;
        Question4Answer = "Question Asked";
        txtAnswer4.Enabled = true;
    }
    else if (e.Result.Text == Question5)
    {
        richTextBox1.Text += "\nYou have now asked Question 5";
        chkQuestion5.Checked = true;
        stopCussing = Response5;
        Form2 responseForm = new Form2();
        responseForm.Show();
        agentScore = agentScore + 1;
        Question5Answer = "Question Asked";
        txtAnswer5.Enabled = true;
    } 

Any Insight here would be great! FYI, I have thought of using cognitive services -- But if I can make windows.speech do what I need, I'd rather not rewrite.

Answer 1

I'm going to answer my own question. The comments here were helpful, but they didn't do the trick for partials. I actually found that if you add .contains, it will accept approximates - only caveat is that the statement being said has to start with the same word. Example code below:

void recEngine_SpeechRecognized(object sender, SpeechRecognizedEventArgs e)
    {

        if (e.Result.Text.Contains( Question1)) //This did the trick here
        {
            richTextBox1.Text += "\nYou have Asked Question 1";
            questionCode = "Question1";
            chkBoxQ1.Checked = true;
            agentScore = agentScore + 1;
            stopCussing = Response1;
            //Form2 responseForm = new Form2();
            //responseForm.Show();
            FurtherResponse further = new FurtherResponse(questionCode, programcode);
            further.Show();
            Question1Answer = "Question Asked";
            txtBoxAnswer1.Enabled = true;
        }
        else if (e.Result.Text.Contains(Question2))
        {
            richTextBox1.Text += "\nYou have now asked Question 2"; 
            chkQuestion2.Checked = true;
            stopCussing = Response2;
            //Form2 responseForm = new Form2();
            //responseForm.Show();
            agentScore = agentScore + 1;
            Question2Answer = "Question Asked";
            txtAnswer2.Enabled = true;
            questionCode = "Question2";
            FurtherResponse further = new FurtherResponse(questionCode, programcode);
            further.Show();
        }