SpeechRecognizer.LoadGrammarAsync Method

Asynchronously loads a speech recognition grammar.

Namespace:  System.Speech.Recognition
Assembly:  System.Speech (in System.Speech.dll)

public void LoadGrammarAsync(
	Grammar grammar


Type: System.Speech.Recognition.Grammar

The speech recognition grammar to load.

When the recognizer completes this asynchronous operation, it raises a LoadGrammarCompleted event. The recognizer throws an exception if the speech recognition grammar is already loaded, is being asynchronously loaded, or has failed to load into any recognizer. If the recognizer is running, applications must use RequestRecognizerUpdate to pause the speech recognition engine before loading, unloading, enabling, or disabling a grammar.

To load a speech recognition grammar synchronously, use the LoadGrammar method.

.NET Framework

Supported in: 4.5, 4, 3.5, 3.0

.NET Framework Client Profile

Supported in: 4

Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

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