Parameters

s

The string to decode.

Returns

A int containing the number of bytes needed to encode s.

Exceptions

Type	Reason
ArgumentNullException	s is null.

Remarks

Operation

As described above.

Note to Inheritors

This method is overridden by types derived from System.Text.Encoding to return the appropriate number of bytes for the particular encoding.

Usage

Encoding.GetByteCount(Char[]) can be used to determine the exact number of bytes that will be produced from encoding the given string . An appropriately sized buffer for that conversion can then be allocated.

Alternatively, Encoding.GetMaxByteCount(int) can be used to determine the maximum number of bytes that will be produced from converting a given number of characters, regardless of the actual character values. A buffer of that size can then be reused for multiple conversions.

Encoding.GetByteCount(Char[]) generally uses less memory and Encoding.GetMaxByteCount(int) generally executes faster.

Requirements

Namespace: System.Text
Assembly: mscorlib (in mscorlib.dll)
Assembly Versions: 1.0.5000.0, 2.0.0.0