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DateTime.CompareTo Method (Object)

Compares the value of this instance to a specified object that contains a specified DateTime value, and returns an integer that indicates whether this instance is earlier than, the same as, or later than the specified DateTime value.

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

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

Parameters

value
Type: System.Object

A boxed object to compare, or a null reference (Nothing in Visual Basic).

Return Value

Type: System.Int32
A signed number indicating the relative values of this instance and value.

Value

Description

Less than zero

This instance is earlier than value.

Zero

This instance is the same as value.

Greater than zero

This instance is later than value, or value is a null reference (Nothing in Visual Basic).

Implements

IComparable.CompareTo(Object)

ExceptionCondition
ArgumentException

value is not a DateTime.

Before comparing DateTime objects, make sure that the objects represent times in the same time zone. You can do this by comparing the values of their Kind properties.

Any instance of DateTime, regardless of its value, is considered greater than a null reference (Nothing in Visual Basic).

The following example demonstrates the CompareTo method.

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

Supported in: Windows Phone 8.1

Supported in: Windows Phone Silverlight 8.1

Supported in: Windows Phone Silverlight 8
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