Tests whether a language has a System.CodeDom.Compiler.CodeDomProvider implementation configured on the computer.
true if a System.CodeDom.Compiler.CodeDomProvider implementation is configured for the specified language; otherwise, false.
The <system.codedom> in the machine configuration file (Machine.config) contains the language provider and compiler configuration settings for each System.CodeDom.Compiler.CodeDomProvider implementation on the computer. The CodeDomProvider.IsDefinedLanguage(string) method searches the provider configuration elements for the specified language name.
Language names are case-insensitive.