Obtains a decoder that converts a UTF-8 encoded sequence of bytes into a sequence of Unicode characters.
Syntax
Returns
A System.Text.Decoder that converts a UTF-8 encoded sequence of bytes into a sequence of Unicode characters.
Remarks
The Decoder.GetChars(Byte[], int, int, Char[], int) method converts sequential blocks of bytes into sequential blocks of characters, in a manner similar to the UTF8Encoding.GetChars(Byte[], int, int, Char[], int) method of this class. However, a System.Text.Decoder maintains state information between calls so it can correctly decode byte sequences that span blocks. The System.Text.Decoder also preserves trailing bytes at the end of data blocks and uses the trailing bytes in the next decoding operation. Therefore, UTF8Encoding.GetDecoder and UTF8Encoding.GetEncoder are useful for network transmission and file operations, because those operations often deal with blocks of data instead of a complete data stream.
If error detection is enabled, that is, the throwOnInvalidCharacters parameter of the constructor is set to true, error detection is also enabled in the System.Text.Decoder returned by this method. If error detection is enabled and an invalid sequence is encountered, the state of the decoder is undefined and processing must stop.
Requirements
Assembly: mscorlib (in mscorlib.dll)
Assembly Versions: 1.0.5000.0, 2.0.0.0, 4.0.0.0