Convert.ToBase64String Method (Byte[], Int32, Int32)

 

Converts a subset of an array of 8-bit unsigned integers to its equivalent string representation that is encoded with base-64 digits. Parameters specify the subset as an offset in the input array, and the number of elements in the array to convert.

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

public static string ToBase64String(
	byte[] inArray,
	int offset,
	int length
)

Parameters

inArray
Type: System.Byte[]

An array of 8-bit unsigned integers.

offset
Type: System.Int32

An offset in inArray.

length
Type: System.Int32

The number of elements of inArray to convert.

Return Value

Type: System.String

The string representation in base 64 of length elements of inArray, starting at position offset.

Exception Condition
ArgumentNullException

inArray is null.

ArgumentOutOfRangeException

offset or length is negative.

-or-

offset plus length is greater than the length of inArray.

The elements of inArray are taken as a numeric value and converted to a string representation in base 64.

The base-64 digits in ascending order from zero are the uppercase characters "A" to "Z", the lowercase characters "a" to "z", the numerals "0" to "9", and the symbols "+" and "/". The valueless character, "=", is used for trailing padding.

The offset and length parameters are 32-bit signed numbers. The offset parameter is zero-based.

System_CAPS_importantImportant

The ToBase64String method is designed to process a single byte array that contains all the data to be encoded. To encode data from a stream, use the System.Security.Cryptography.ToBase64Transform class.

Universal Windows Platform
Available since 8
.NET Framework
Available since 1.1
Portable Class Library
Supported in: portable .NET platforms
Silverlight
Available since 2.0
Windows Phone Silverlight
Available since 7.0
Windows Phone
Available since 8.1
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