CollectionHelper Class

Namespace: PTS

Assembly: PTSframework.dll

Provides a set of static methods for ICollection type.

Syntax

public static class CollectionHelper

Inheritance

System.Object

CollectionHelper

Methods

AddAndReturn<TValue>(ICollection<TValue>, TValue)

Adds an item to collection and returns its instance.

Declaration

public static TValue AddAndReturn<TValue>(this ICollection<TValue> collection, TValue value)

Parameters

Type	Name	Description
System.Collections.Generic.ICollection<TValue>	collection	Collection to add the item to.
TValue	value	Item to add to collection.

Returns

Type	Description
TValue	Added item.

Type Parameters

Name	Description
TValue	The type of elements in the collection.

AddMultiple<TValue>(ICollection<TValue>, TValue[])

Adds multiple items to collection.

Declaration

public static ICollection<TValue> AddMultiple<TValue>(this ICollection<TValue> collection, params TValue[] values)

Parameters

Type	Name	Description
System.Collections.Generic.ICollection<TValue>	collection	Collection to add the items to.
TValue[]	values	Values to add to the collection.

Returns

Type	Description
System.Collections.Generic.ICollection<TValue>	The same instance of collection to allow chaining.

Type Parameters

Name	Description
TValue	The type of elements in the collection.

Remarks

The method behaves identically to AddRange method in several native types.

AddNotNull<TValue>(ICollection<TValue>, Nullable<TValue>)

Adds an item to collection if the value type item is not null.

Declaration

public static ICollection<TValue> AddNotNull<TValue>(this ICollection<TValue> collection, TValue? value)
    where TValue : struct

Parameters

Type	Name	Description
System.Collections.Generic.ICollection<TValue>	collection	Collection to add the item to.
System.Nullable<TValue>	value

Returns

Type	Description
System.Collections.Generic.ICollection<TValue>	The same instance of collection to allow chaining.

Type Parameters

Name	Description
TValue	The type of elements in the collection.

AddRange<TValue>(ICollection<TValue>, IEnumerable<TValue>)

Adds multiple items to collection.

Declaration

public static ICollection<TValue> AddRange<TValue>(this ICollection<TValue> collection, IEnumerable<TValue> values)

Parameters

Type	Name	Description
System.Collections.Generic.ICollection<TValue>	collection	Collection to add the items to.
System.Collections.Generic.IEnumerable<TValue>	values	Values to add to the collection.

Returns

Type	Description
System.Collections.Generic.ICollection<TValue>	The same instance of collection to allow chaining.

Type Parameters

Name	Description
TValue	The type of elements in the collection.

Remarks

The method behaves identically to AddRange method in several native types.

ToArray<TValue>(ICollection<TValue>)

Copies the elements of the collection to a new array.

Declaration

public static TValue[] ToArray<TValue>(this ICollection<TValue> collection)

Parameters

Type	Name	Description
System.Collections.Generic.ICollection<TValue>	collection	The collection to copy into an array.

Returns

Type	Description
TValue[]	An array containing copies of the elements of the collection.

Type Parameters

Name	Description
TValue	The type of elements in the collection.

ToCenteredArray<T>(ICollection<T>)

Copies the elements of the collection to a new array from the middle.

Declaration

public static T[] ToCenteredArray<T>(this ICollection<T> collection)

Parameters

Type	Name	Description
System.Collections.Generic.ICollection<T>	collection	The collection to copy into a centered array.

Returns

Type	Description
T[]	An array containing copies of the elements of the collection in centered order.

Type Parameters

Name	Description
T	The type of elements in the collection.

Inherited Members

System.Object.Equals(System.Object)

System.Object.Equals(System.Object, System.Object)

System.Object.GetHashCode()

System.Object.GetType()

System.Object.MemberwiseClone()

System.Object.ReferenceEquals(System.Object, System.Object)

System.Object.ToString()