System Namespace

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Converts base data types to other base data types.

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Fields Visibility Name Type public static DBNull Object   Methods Visibility Name Parameters Return Type public static ChangeType ( Object value , TypeCode typeCode ) Object public static ChangeType ( Object value , Type conversionType ) Object public static ChangeType ( Object value , TypeCode typeCode , IFormatProvider provider ) Object public static ChangeType ( Object value , Type conversionType , IFormatProvider provider ) Object public static FromBase64CharArray ( Char inArray , Int32 offset , Int32 length ) Byte public static FromBase64String ( String s ) Byte public static GetTypeCode ( Object value ) TypeCode public static IsDBNull ( Object value ) Boolean public static ToBase64CharArray ( Byte inArray , Int32 offsetIn , Int32 length , Char outArray , Int32 offsetOut ) Int32 public static ToBase64CharArray ( Byte inArray , Int32 offsetIn , Int32 length , Char outArray , Int32 offsetOut , Base64FormattingOptions options ) Int32 public static ToBase64String ( Byte inArray , Base64FormattingOptions options ) String public static ToBase64String ( Byte inArray ) String public static ToBase64String ( Byte inArray , Int32 offset , Int32 length , Base64FormattingOptions options ) String public static ToBase64String ( Byte inArray , Int32 offset , Int32 length ) String public static ToBoolean ( Double value ) Boolean public static ToBoolean ( Single value ) Boolean public static ToBoolean ( Decimal value ) Boolean public static ToBoolean ( Object value ) Boolean public static ToBoolean ( DateTime value ) Boolean public static ToBoolean ( String value , IFormatProvider provider ) Boolean public static ToBoolean ( Char value ) Boolean public static ToBoolean ( Byte value ) Boolean public static ToBoolean ( Int16 value ) Boolean public static ToBoolean ( Object value , IFormatProvider provider ) Boolean public static ToBoolean ( Boolean value ) Boolean public static ToBoolean ( SByte value ) Boolean public static ToBoolean ( UInt16 value ) Boolean public static ToBoolean ( Int64 value ) Boolean public static ToBoolean ( UInt64 value ) Boolean public static ToBoolean ( UInt32 value ) Boolean public static ToBoolean ( String value ) Boolean public static ToBoolean ( Int32 value ) Boolean public static ToByte ( Boolean value ) Byte public static ToByte ( Byte value ) Byte public static ToByte ( Char value ) Byte public static ToByte ( String value , Int32 fromBase ) Byte public static ToByte ( Object value ) Byte public static ToByte ( Object value , IFormatProvider provider ) Byte public static ToByte ( Decimal value ) Byte public static ToByte ( Double value ) Byte public static ToByte ( Single value ) Byte public static ToByte ( DateTime value ) Byte public static ToByte ( String value , IFormatProvider provider ) Byte public static ToByte ( String value ) Byte public static ToByte ( UInt64 value ) Byte public static ToByte ( UInt16 value ) Byte public static ToByte ( Int16 value ) Byte public static ToByte ( SByte value ) Byte public static ToByte ( Int64 value ) Byte public static ToByte ( UInt32 value ) Byte public static ToByte ( Int32 value ) Byte public static ToChar ( UInt64 value ) Char public static ToChar ( Int64 value ) Char public static ToChar ( UInt32 value ) Char public static ToChar ( Single value ) Char public static ToChar ( String value , IFormatProvider provider ) Char public static ToChar ( String value ) Char public static ToChar ( UInt16 value ) Char public static ToChar ( Char value ) Char public static ToChar ( Boolean value ) Char public static ToChar ( Object value , IFormatProvider provider ) Char public static ToChar ( Int16 value ) Char public static ToChar ( Byte value ) Char public static ToChar ( SByte value ) Char public static ToChar ( Int32 value ) Char public static ToChar ( Object value ) Char public static ToChar ( DateTime value ) Char public static ToChar ( Decimal value ) Char public static ToChar ( Double value ) Char public static ToDateTime ( Int64 value ) DateTime public static ToDateTime ( SByte value ) DateTime public static ToDateTime ( DateTime value ) DateTime public static ToDateTime ( Object value ) DateTime public static ToDateTime ( UInt32 value ) DateTime public static ToDateTime ( Int16 value ) DateTime public static ToDateTime ( Byte value ) DateTime public static ToDateTime ( Int32 value ) DateTime public static ToDateTime ( UInt16 value ) DateTime public static ToDateTime ( Double value ) DateTime public static ToDateTime ( Single value ) DateTime public static ToDateTime ( String value ) DateTime public static ToDateTime ( Decimal value ) DateTime public static ToDateTime ( Char value ) DateTime public static ToDateTime ( String value , IFormatProvider provider ) DateTime public static ToDateTime ( Object value , IFormatProvider provider ) DateTime public static ToDateTime ( Boolean value ) DateTime public static ToDateTime ( UInt64 value ) DateTime public static ToDecimal ( Single value ) Decimal public static ToDecimal ( Object value ) Decimal public static ToDecimal ( SByte value ) Decimal public static ToDecimal ( Object value , IFormatProvider provider ) Decimal public static ToDecimal ( UInt16 value ) Decimal public static ToDecimal ( Int16 value ) Decimal public static ToDecimal ( Char value ) Decimal public static ToDecimal ( Int32 value ) Decimal public static ToDecimal ( UInt64 value ) Decimal public static ToDecimal ( Int64 value ) Decimal public static ToDecimal ( UInt32 value ) Decimal public static ToDecimal ( Decimal value ) Decimal public static ToDecimal ( Boolean value ) Decimal public static ToDecimal ( DateTime value ) Decimal public static ToDecimal ( String value , IFormatProvider provider ) Decimal public static ToDecimal ( Byte value ) Decimal public static ToDecimal ( Double value ) Decimal public static ToDecimal ( String value ) Decimal public static ToDouble ( SByte value ) Double public static ToDouble ( UInt16 value ) Double public static ToDouble ( Char value ) Double public static ToDouble ( UInt32 value ) Double public static ToDouble ( Int32 value ) Double public static ToDouble ( Object value , IFormatProvider provider ) Double public static ToDouble ( Byte value ) Double public static ToDouble ( Int16 value ) Double public static ToDouble ( Object value ) Double public static ToDouble ( Int64 value ) Double public static ToDouble ( String value , IFormatProvider provider ) Double public static ToDouble ( String value ) Double public static ToDouble ( DateTime value ) Double public static ToDouble ( Boolean value ) Double public static ToDouble ( Single value ) Double public static ToDouble ( UInt64 value ) Double public static ToDouble ( Decimal value ) Double public static ToDouble ( Double value ) Double public static ToInt16 ( Int64 value ) Int16 public static ToInt16 ( UInt64 value ) Int16 public static ToInt16 ( Int16 value ) Int16 public static ToInt16 ( Int32 value ) Int16 public static ToInt16 ( UInt32 value ) Int16 public static ToInt16 ( DateTime value ) Int16 public static ToInt16 ( String value , IFormatProvider provider ) Int16 public static ToInt16 ( Decimal value ) Int16 public static ToInt16 ( Single value ) Int16 public static ToInt16 ( Double value ) Int16 public static ToInt16 ( Object value ) Int16 public static ToInt16 ( Object value , IFormatProvider provider ) Int16 public static ToInt16 ( String value ) Int16 public static ToInt16 ( String value , Int32 fromBase ) Int16 public static ToInt16 ( Boolean value ) Int16 public static ToInt16 ( Byte value ) Int16 public static ToInt16 ( UInt16 value ) Int16 public static ToInt16 ( Char value ) Int16 public static ToInt16 ( SByte value ) Int16 public static ToInt32 ( String value , Int32 fromBase ) Int32 public static ToInt32 ( Int32 value ) Int32 public static ToInt32 ( String value ) Int32 public static ToInt32 ( Decimal value ) Int32 public static ToInt32 ( DateTime value ) Int32 public static ToInt32 ( String value , IFormatProvider provider ) Int32 public static ToInt32 ( UInt64 value ) Int32 public static ToInt32 ( Int64 value ) Int32 public static ToInt32 ( Double value ) Int32 public static ToInt32 ( Single value ) Int32 public static ToInt32 ( UInt32 value ) Int32 public static ToInt32 ( Boolean value ) Int32 public static ToInt32 ( Char value ) Int32 public static ToInt32 ( Object value ) Int32 public static ToInt32 ( Object value , IFormatProvider provider ) Int32 public static ToInt32 ( Int16 value ) Int32 public static ToInt32 ( UInt16 value ) Int32 public static ToInt32 ( SByte value ) Int32 public static ToInt32 ( Byte value ) Int32 public static ToInt64 ( DateTime value ) Int64 public static ToInt64 ( String value , IFormatProvider provider ) Int64 public static ToInt64 ( String value , Int32 fromBase ) Int64 public static ToInt64 ( SByte value ) Int64 public static ToInt64 ( String value ) Int64 public static ToInt64 ( Boolean value ) Int64 public static ToInt64 ( Char value ) Int64 public static ToInt64 ( Byte value ) Int64 public static ToInt64 ( Single value ) Int64 public static ToInt64 ( Object value ) Int64 public static ToInt64 ( Object value , IFormatProvider provider ) Int64 public static ToInt64 ( UInt32 value ) Int64 public static ToInt64 ( UInt64 value ) Int64 public static ToInt64 ( Int64 value ) Int64 public static ToInt64 ( Int16 value ) Int64 public static ToInt64 ( UInt16 value ) Int64 public static ToInt64 ( Int32 value ) Int64 public static ToInt64 ( Decimal value ) Int64 public static ToInt64 ( Double value ) Int64 public static ToSByte ( Byte value ) SByte public static ToSByte ( Char value ) SByte public static ToSByte ( UInt16 value ) SByte public static ToSByte ( Int16 value ) SByte public static ToSByte ( Object value , IFormatProvider provider ) SByte public static ToSByte ( Decimal value ) SByte public static ToSByte ( SByte value ) SByte public static ToSByte ( Boolean value ) SByte public static ToSByte ( Int32 value ) SByte public static ToSByte ( Double value ) SByte public static ToSByte ( Int64 value ) SByte public static ToSByte ( Single value ) SByte public static ToSByte ( String value , Int32 fromBase ) SByte public static ToSByte ( UInt64 value ) SByte public static ToSByte ( Object value ) SByte public static ToSByte ( UInt32 value ) SByte public static ToSByte ( DateTime value ) SByte public static ToSByte ( String value ) SByte public static ToSByte ( String value , IFormatProvider provider ) SByte public static ToSingle ( UInt16 value ) Single public static ToSingle ( Int16 value ) Single public static ToSingle ( UInt32 value ) Single public static ToSingle ( Int32 value ) Single public static ToSingle ( Char value ) Single public static ToSingle ( Object value , IFormatProvider provider ) Single public static ToSingle ( Object value ) Single public static ToSingle ( Byte value ) Single public static ToSingle ( SByte value ) Single public static ToSingle ( String value , IFormatProvider provider ) Single public static ToSingle ( Boolean value ) Single public static ToSingle ( Decimal value ) Single public static ToSingle ( String value ) Single public static ToSingle ( DateTime value ) Single public static ToSingle ( UInt64 value ) Single public static ToSingle ( Int64 value ) Single public static ToSingle ( Double value ) Single public static ToSingle ( Single value ) Single public static ToString ( UInt16 value , IFormatProvider provider ) String public static ToString ( UInt16 value ) String public static ToString ( Int16 value ) String public static ToString ( Int16 value , IFormatProvider provider ) String public static ToString ( UInt32 value ) String public static ToString ( UInt32 value , IFormatProvider provider ) String public static ToString ( Int32 value ) String public static ToString ( Int32 value , IFormatProvider provider ) String public static ToString ( Byte value , IFormatProvider provider ) String public static ToString ( Boolean value ) String public static ToString ( Boolean value , IFormatProvider provider ) String public static ToString ( Object value ) String public static ToString ( Object value , IFormatProvider provider ) String public static ToString ( Char value ) String public static ToString ( SByte value , IFormatProvider provider ) String public static ToString ( Byte value ) String public static ToString ( Char value , IFormatProvider provider ) String public static ToString ( SByte value ) String public static ToString ( DateTime value , IFormatProvider provider ) String public static ToString ( String value ) String public static ToString ( Decimal value , IFormatProvider provider ) String public static ToString ( DateTime value ) String public static ToString ( String value , IFormatProvider provider ) String public static ToString ( Int32 value , Int32 toBase ) String public static ToString ( Int64 value , Int32 toBase ) String public static ToString ( Byte value , Int32 toBase ) String public static ToString ( Int16 value , Int32 toBase ) String public static ToString ( UInt64 value ) String public static ToString ( UInt64 value , IFormatProvider provider ) String public static ToString ( Int64 value ) String public static ToString ( Int64 value , IFormatProvider provider ) String public static ToString ( Single value ) String public static ToString ( Decimal value ) String public static ToString ( Double value , IFormatProvider provider ) String public static ToString ( Double value ) String public static ToString ( Single value , IFormatProvider provider ) String public static ToUInt16 ( String value , Int32 fromBase ) UInt16 public static ToUInt16 ( Decimal value ) UInt16 public static ToUInt16 ( UInt32 value ) UInt16 public static ToUInt16 ( Int64 value ) UInt16 public static ToUInt16 ( UInt16 value ) UInt16 public static ToUInt16 ( Int16 value ) UInt16 public static ToUInt16 ( Int32 value ) UInt16 public static ToUInt16 ( String value ) UInt16 public static ToUInt16 ( String value , IFormatProvider provider ) UInt16 public static ToUInt16 ( Double value ) UInt16 public static ToUInt16 ( UInt64 value ) UInt16 public static ToUInt16 ( Single value ) UInt16 public static ToUInt16 ( Byte value ) UInt16 public static ToUInt16 ( Object value , IFormatProvider provider ) UInt16 public static ToUInt16 ( Object value ) UInt16 public static ToUInt16 ( DateTime value ) UInt16 public static ToUInt16 ( SByte value ) UInt16 public static ToUInt16 ( Char value ) UInt16 public static ToUInt16 ( Boolean value ) UInt16 public static ToUInt32 ( Single value ) UInt32 public static ToUInt32 ( UInt64 value ) UInt32 public static ToUInt32 ( Int64 value ) UInt32 public static ToUInt32 ( UInt16 value ) UInt32 public static ToUInt32 ( Int32 value ) UInt32 public static ToUInt32 ( UInt32 value ) UInt32 public static ToUInt32 ( String value ) UInt32 public static ToUInt32 ( String value , IFormatProvider provider ) UInt32 public static ToUInt32 ( String value , Int32 fromBase ) UInt32 public static ToUInt32 ( Double value ) UInt32 public static ToUInt32 ( DateTime value ) UInt32 public static ToUInt32 ( Decimal value ) UInt32 public static ToUInt32 ( Object value , IFormatProvider provider ) UInt32 public static ToUInt32 ( Boolean value ) UInt32 public static ToUInt32 ( Byte value ) UInt32 public static ToUInt32 ( Object value ) UInt32 public static ToUInt32 ( Int16 value ) UInt32 public static ToUInt32 ( SByte value ) UInt32 public static ToUInt32 ( Char value ) UInt32 public static ToUInt64 ( String value ) UInt64 public static ToUInt64 ( Object value , IFormatProvider provider ) UInt64 public static ToUInt64 ( Object value ) UInt64 public static ToUInt64 ( Boolean value ) UInt64 public static ToUInt64 ( SByte value ) UInt64 public static ToUInt64 ( Char value ) UInt64 public static ToUInt64 ( Int16 value ) UInt64 public static ToUInt64 ( Byte value ) UInt64 public static ToUInt64 ( DateTime value ) UInt64 public static ToUInt64 ( Decimal value ) UInt64 public static ToUInt64 ( String value , IFormatProvider provider ) UInt64 public static ToUInt64 ( Double value ) UInt64 public static ToUInt64 ( Single value ) UInt64 public static ToUInt64 ( UInt64 value ) UInt64 public static ToUInt64 ( UInt16 value ) UInt64 public static ToUInt64 ( String value , Int32 fromBase ) UInt64 public static ToUInt64 ( Int32 value ) UInt64 public static ToUInt64 ( Int64 value ) UInt64 public static ToUInt64 ( UInt32 value ) UInt64

This class returns a base type that is equivalent to the value of a specified type.

Conversions are supported to and from Byte, SByte, Int16, Int32, Int64, UInt16, UInt32, UInt64, Single, Double, Decimal, String, and Object.

Conversions are supported from Char to Int32, UInt32, String, and Object. Conversions are supported to Char from Byte, SByte, Int16, Int32, UInt16, and UInt32, and String.

Conversions are supported from Boolean to Byte, Char, Int16, Int32, Int64, UInt16, UInt32, UInt64, String, and Object. Conversions are supported to Boolean from Byte, SByte, Int16, Int32, Int64, UInt16, UInt32, UInt64, and String.

Conversions of DateTime are supported to and from String.

An exception will not be thrown if the conversion of a numeric type results in a loss of precision ( that is, the loss of some least significant digits ). However, an exception will be thrown if the result is larger than can be represented by the particular conversion method's return value type.

For example, when a Double is converted to a Single, a loss of precision may occur but no exception is thrown. However, if the magnitude of the Double is too large to be represented by a Single, an overflow exception is thrown.

A set of methods support converting an array of bytes to and from a String or array of Unicode characters consisting of base 64 digit characters. Data expressed as base 64 digits can be easily conveyed over data channels that can only transmit 7-bit characters.

Many of the methods in this class convert a source type to a target type by invoking the corresponding IConvertible explicit interface implementation method on the source object. If such a method does not exist, an InvalidCastException is thrown.

Some of the methods in this class take a parameter object that implements the IFormatProvider interface. This parameter can supply culture-specific formatting information to assist the conversion process. The base value types ignore this parameter, but any user-defined type that implements IConvertible can honor it.

For more information about the base value types, see the appropriate topic listed in the See Also section.

Object   SByte   Int16   Int32   Int64   Byte   UInt16   UInt32   UInt64   Single   Double   Decimal   Boolean   Char   String