Initializes a new instance of the GrammarBuilder class from a sequence of words.
Namespace:
Microsoft.Speech.Recognition
Assembly:
Microsoft.Speech (in Microsoft.Speech.dll)
Syntax
| Visual Basic (Declaration) |
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Public Sub New ( _ phrase As String _ ) |
| Visual Basic (Usage) |
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Dim phrase As String Dim instance As New GrammarBuilder(phrase) |
| C# |
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public GrammarBuilder( string phrase ) |
Parameters
- phrase
- Type: System..::..String
The sequence of words.
Remarks
The phrase represents an exact spoken phrase that the speech recognition grammar can recognize. For more information about building a speech recognition grammar that contains strings, see Use a String to Create a GrammarBuilder (Microsoft.Speech).
Examples
The following example uses GrammarBuilder and Choices objects to construct a grammar that can recognize either of the two phrases, "Make background colorChoice" or "Set background to colorChoice".
After creating a list of acceptable values for colorChoice using a Choices object, the example initializes two GrammarBuilder objects, makePhrase and setPhrase, using a string as an argument.
The example finally creates a Grammar object from a GrammarBuilder constructed from a Choices object.
| C# | Copy Code |
|---|---|
private Grammar CreateColorGrammar()
{
// Create a set of color choices.
Choices colorChoice = new Choices(new string[] {"red", "green", "blue"});
GrammarBuilder colorElement = new GrammarBuilder(colorChoice);
// Create grammar builders for the two versions of the phrase.
GrammarBuilder makePhrase = new GrammarBuilder("Make background");
makePhrase.Append(colorElement);
GrammarBuilder setPhrase = new GrammarBuilder("Set background to");
setPhrase.Append(colorElement);
// Create a Choices for the two alternative phrases, convert the Choices
// to a GrammarBuilder, and construct the Grammar object from the result.
Choices bothChoices = new Choices(new GrammarBuilder[] {makePhrase, setPhrase});
Grammar grammar = new Grammar((GrammarBuilder)bothChoices);
grammar.Name = "backgroundColor";
return grammar;
} | |
See Also
