| FromBase64CharArray | Decodes a base-64 character array to a byte array. The Offset and length specify a subset of the character array to be decoded. |
| FromBase64String | A base-64 string containing characters to be decoded to a byte array. |
| ToBase64CharArray | Converts the value of a subset of a byte array to an equivalent subset of a Unicode character array consisting of base 64 digits. Parameters specify the subsets as offsets of the input and output arrays and the number of elements in the input array. |
| ToBase64String | Converts the value of a subset of a byte array to an equivalent subset of a Unicode character string consisting of base-64 characters. Parameters specify the subsets as offsets of the input array and the number of elements in the input array to process. |
| ToString | Converts a datatype value to a string representation using any supplied formatting or provider arguments. |