Export (0) Print
Expand All
This topic has not yet been rated - Rate this topic

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

Converts a subset of an array of 8-bit unsigned integers to its equivalent String representation 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


Type: System.Byte[]
An array of 8-bit unsigned integers.
Type: System.Int32
An offset in inArray.
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.

inArray is null.


offset or length is negative.


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.


Supported in: 5, 4, 3

Silverlight for Windows Phone

Supported in: Windows Phone OS 7.1, Windows Phone OS 7.0

XNA Framework

Supported in: Xbox 360, Windows Phone OS 7.0

For a list of the operating systems and browsers that are supported by Silverlight, see Supported Operating Systems and Browsers.

Did you find this helpful?
(1500 characters remaining)
Thank you for your feedback

Community Additions

© 2014 Microsoft. All rights reserved.