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class System.Collections.Generic.EqualityComparer<T>
Assembly: System.Collections
Inheritance: object → EqualityComparer
Implemented Interfaces
Provides a base class for implementations of the <see cref="T:System.Collections.Generic.IEqualityComparer`1" /> generic interface.
Properties
public static
EqualityComparer<T>
Default
Returns a default equality comparer for the type specified by the generic argument.
Methods
public static
EqualityComparer<T>
Create(Func<T, T, bool> equals,
Func?<T, int> getHashCode = null)
Creates an <see cref="T:System.Collections.Generic.EqualityComparer`1" /> by using the specified delegates as the implementation of the comparer's <see cref="M:System.Collections.Generic.EqualityComparer`1.Equals(`0,`0)" /> and <see cref="M:System.Collections.Generic.EqualityComparer`1.GetHashCode(`0)" /> methods.
Returns The new comparer.
equals
The delegate to use to implement the <see cref="M:System.Collections.Generic.EqualityComparer`1.Equals(`0,`0)" /> method.
getHashCode
The delegate to use to implement the <see cref="M:System.Collections.Generic.EqualityComparer`1.GetHashCode(`0)" /> method.
If no delegate is supplied, calls to the resulting comparer's <see cref="M:System.Collections.Generic.EqualityComparer`1.GetHashCode(`0)" /> will throw <see cref="T:System.NotSupportedException" /> .
public
bool
Equals(T x,
T y)
When overridden in a derived class, determines whether two objects of type <typeparamref name="T" /> are equal.
Returns <see langword="true" /> if the specified objects are equal; otherwise, <see langword="false" /> .
x
The first object to compare.
y
The second object to compare.
public
int
GetHashCode(T obj)
When overridden in a derived class, serves as a hash function for the specified object for hashing algorithms and data structures, such as a hash table.
Returns A hash code for the specified object.
obj
The object for which to get a hash code.
public
bool
Equals(object obj)
Inherited from object
protected
void
Finalize()
Inherited from object
public
int
GetHashCode()
Inherited from object
protected
object
MemberwiseClone()
Inherited from object
public
string
ToString()
Inherited from object