SemanticResultKey.ToGrammarBuilder 方法

public:
 System::Speech::Recognition::GrammarBuilder ^ ToGrammarBuilder();

public System.Speech.Recognition.GrammarBuilder ToGrammarBuilder();

member this.ToGrammarBuilder : unit -> System.Speech.Recognition.GrammarBuilder

Public Function ToGrammarBuilder () As GrammarBuilder

傳回

一個由當前GrammarBuilder實例建構的實例SemanticResultKey。

範例

以下範例建立一個 Grammar 物件，支援更改背景顏色的指令。

Choices一個包含背景色選項清單的物件（colorChoice）會用實Add(GrammarBuilder[])GrammarBuilder例填充。 這些 GrammarBuilder 實例是透過該 ToGrammarBuilder() 方法 SemanticResultValue 在由顏色串建立的物件上取得的。

GrammarBuilder接著，A是透過呼叫ToGrammarBuilder()SemanticResultKey一個實例來取得，該實例將用來鍵入語意選擇colorChoice。

private Grammar CreateGrammarBuilderRGBSemantics()
{

  // Create a set of choices, each a lookup from a color name to RGB.
  // Choices constructors do not take SemanticResultValue parameters, so cast
  // the SemanticResultValue to GrammarBuilder.
  Choices colorChoice = new Choices();
  foreach (string colorName in System.Enum.GetNames(typeof(KnownColor)))
  {
    SemanticResultValue colorValue=new SemanticResultValue(colorName, Color.FromName(colorName).ToArgb());

    // Use implicit conversion of SemanticResultValue to GrammarBuilder.
    colorChoice.Add(colorValue.ToGrammarBuilder());
  }
  SemanticResultKey choiceKey = new SemanticResultKey("rgb", colorChoice);
  GrammarBuilder choiceBuilder = choiceKey.ToGrammarBuilder();

  // Create two intermediate grammars with introductory phrase and the color choice.
  GrammarBuilder makeBackgroundBuilder = "Make background";
  makeBackgroundBuilder.Append(choiceBuilder);

  GrammarBuilder configureBackgroundBuilder = new GrammarBuilder("Configure background as");
  configureBackgroundBuilder.Append((new SemanticResultKey("rgb", colorChoice)).ToGrammarBuilder());

  // Create the Grammar object, which recognizes either intermediate grammar.
  Grammar grammar = new Grammar(new Choices(new GrammarBuilder[] {makeBackgroundBuilder, configureBackgroundBuilder}));
  grammar.Name = "Make Background /Configure background as";

  return grammar;
}

備註

的使用ToGrammarBuilder等同於使用取參數GrammarBuilderSemanticResultKey（）的構造子。GrammarBuilder(SemanticResultKey)