Class EnumerationExtensions

Handy extension methods for Flags-Enums. Taken from http://hugoware.net/blog/enums-flags-and-csharp

Inheritance
System.Object
EnumerationExtensions
Inherited Members
System.Object.ToString()
System.Object.Equals(System.Object)
System.Object.Equals(System.Object, System.Object)
System.Object.ReferenceEquals(System.Object, System.Object)
System.Object.GetHashCode()
System.Object.GetType()
System.Object.MemberwiseClone()
Namespace: OPTANO.Modeling.Common
Assembly: Common.dll
Syntax
public static class EnumerationExtensions

Methods

Add<T>(Enum, T)

Declaration
public static T Add<T>(this Enum type, T value)
Parameters
Type Name Description
System.Enum type
T value
Returns
Type Description
T
Type Parameters
Name Description
T

Has<T>(Enum, T)

Checks if the value contains the provided type. It is NOT validated whether type.GetType() == typeof(T). Only the respective int-casts are compared!

Declaration
public static bool Has<T>(this Enum type, T value)
Parameters
Type Name Description
System.Enum type

The extended System.Enum.
T value

The flag to check for.
Returns
Type Description
System.Boolean

True, if the -flag is set in the -Enum. It is NOT validated whether type.GetType() == typeof(T). Only the respective int-casts are compared!
Type Parameters
Name Description
T

The flag enum type, that you want to check against.

Is<T>(Enum, T)

Declaration
public static bool Is<T>(this Enum type, T value)
Parameters
Type Name Description
System.Enum type
T value
Returns
Type Description
System.Boolean
Type Parameters
Name Description
T

PartitionEnumerable<T>(IEnumerable<T>, Int32)

Partitions the given source into lists with partitionSize elements. The last partition might be smaller in size.

Declaration
public static IEnumerable<List<T>> PartitionEnumerable<T>(this IEnumerable<T> source, int partitionSize)
Parameters
Type Name Description
System.Collections.Generic.IEnumerable<T> source

The source.
System.Int32 partitionSize

The partition size.
Returns
Type Description
System.Collections.Generic.IEnumerable<System.Collections.Generic.List<T>>

The enumerable partition.
Type Parameters
Name Description
T

The element type.

Remove<T>(Enum, T)

Declaration
public static T Remove<T>(this Enum type, T value)
Parameters
Type Name Description
System.Enum type
T value
Returns
Type Description
T
Type Parameters
Name Description
T

SelectWhere<TSource, TResult>(IEnumerable<TSource>, Func<TSource, TResult>, Func<TSource, Boolean>)

Adds a filter to System.Linq.Enumerable.Select``2(System.Collections.Generic.IEnumerable{``0},System.Func{``0,``1}) calls.

Declaration
public static IEnumerable<TResult> SelectWhere<TSource, TResult>(this IEnumerable<TSource> enumerable, Func<TSource, TResult> selector, Func<TSource, bool> filter)
Parameters
Type Name Description
System.Collections.Generic.IEnumerable<TSource> enumerable

The enumerable.
System.Func<TSource, TResult> selector

The selector to transfer TSource to TResult.
System.Func<TSource, System.Boolean> filter

The where-filter.
Returns
Type Description
System.Collections.Generic.IEnumerable<TResult>
Type Parameters
Name Description
TSource

The source type.
TResult

The result type.

ToHashSet<T>(IEnumerable<T>, IEqualityComparer<T>)

Returns a hashset that contains the elements from enumerable.

Declaration
public static HashSet<T> ToHashSet<T>(this IEnumerable<T> enumerable, IEqualityComparer<T> comparer = null)
Parameters
Type Name Description
System.Collections.Generic.IEnumerable<T> enumerable

The enumerable
System.Collections.Generic.IEqualityComparer<T> comparer

Optional: The equality comparer.
Returns
Type Description
System.Collections.Generic.HashSet<T>

The hash set.
Type Parameters
Name Description
T

The type.