Encoding.GetCharCount Method (Byte*, Int32)

Note: This method is new in the .NET Framework version 2.0.

When overridden in a derived class, calculates the number of characters produced by decoding a sequence of bytes starting at the specified byte pointer.

This method is not CLS-compliant.  

Namespace: System.Text
Assembly: mscorlib (in mscorlib.dll)

public virtual int GetCharCount (
	byte* bytes,
	int count
J# does not support APIs that consume or return unsafe types.
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A pointer to the first byte to decode.


The number of bytes to decode.

Return Value

The number of characters produced by decoding the specified sequence of bytes.

Exception typeCondition


bytes is a null reference (Nothing in Visual Basic).


count is less than zero.

To calculate the exact array size that GetChars requires to store the resulting characters, use GetCharCount. To calculate the maximum array size, use GetMaxCharCount. The GetCharCount method generally allows you to allocate less memory, whereas the GetMaxCharCount method generally executes faster.

Windows 98, Windows 2000 SP4, Windows Millennium Edition, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

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

.NET Framework

Supported in: 2.0