Parameters

chars

The character array containing the set of characters to encode.

index

The index of the first character to encode.

count

The number of characters to encode.

Returns

The number of bytes produced by encoding the specified characters.

Exceptions

Type	Reason
ArgumentNullException	chars is null.
ArgumentOutOfRangeException	index < 0. -or- count < 0. -or- index and count do not specify a valid range in chars (i.e. ( index + count - 1) > chars.Length).

Remarks

To calculate the exact array size required by ASCIIEncoding.GetBytes(string, int, int, Byte[], int) to store the resulting bytes, the application uses ASCIIEncoding.GetByteCount(Char[], int, int). To calculate the maximum array size, the application should use ASCIIEncoding.GetMaxByteCount(int). The ASCIIEncoding.GetByteCount(Char[], int, int) method generally allows allocation of less memory, while the ASCIIEncoding.GetMaxByteCount(int) method generally executes faster.

Requirements