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Char.CompareTo Method (Object)

Compares this instance to a specified object and indicates whether this instance precedes, follows, or appears in the same position in the sort order as the specified Object.

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

abstract CompareTo : 
        value:Object -> int  
override CompareTo : 
        value:Object -> int

Parameters

value
Type: System.Object

An object to compare this instance to, or a null reference (Nothing in Visual Basic).

Return Value

Type: System.Int32
A signed number indicating the position of this instance in the sort order in relation to the value parameter.

Return Value

Description

Less than zero

This instance precedes value.

Zero

This instance has the same position in the sort order as value.

Greater than zero

This instance follows value.

-or-

value is a null reference (Nothing in Visual Basic).

Implements

IComparable.CompareTo(Object)

ExceptionCondition
ArgumentException

value is not a Char object.

The CompareTo method implements the IComparable interface.

The value parameter must be a null reference (Nothing in Visual Basic) or an instance of Char; otherwise, an exception is thrown.

The comparison performed by this method is based on the encoded values of this instance and value, not necessarily their lexicographical characteristics. Any instance of Char, regardless of its value, is considered greater than a null reference (Nothing in Visual Basic).

The following code example demonstrates CompareTo.

No code example is currently available or this language may not be supported.

.NET Framework

Supported in: 4.6, 4.5, 4, 3.5, 3.0, 2.0, 1.1

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

XNA Framework

Supported in: 3.0, 2.0, 1.0

.NET for Windows Phone apps

Supported in: Windows Phone 8.1, Windows Phone Silverlight 8.1, Windows Phone Silverlight 8
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