CollectionBase Constructors

Definition

Initializes a new instance of the CollectionBase class.

Overloads

CollectionBase()

Initializes a new instance of the CollectionBase class with the default initial capacity.

CollectionBase(Int32)

Initializes a new instance of the CollectionBase class with the specified capacity.

CollectionBase()

Source:
CollectionBase.cs
Source:
CollectionBase.cs
Source:
CollectionBase.cs

Initializes a new instance of the CollectionBase class with the default initial capacity.

C#
protected CollectionBase();

Remarks

The capacity of a CollectionBase is the number of elements that the CollectionBase can hold. As elements are added to a CollectionBase, the capacity is automatically increased as required by reallocating the internal array.

If the size of the collection can be estimated, specifying the initial capacity eliminates the need to perform a number of resizing operations while adding elements to the CollectionBase.

This constructor is an O(1) operation.

See also

Applies to

.NET 9 and other versions
Product Versions
.NET Core 1.0, Core 1.1, Core 2.0, Core 2.1, Core 2.2, Core 3.0, Core 3.1, 5, 6, 7, 8, 9
.NET Framework 1.1, 2.0, 3.0, 3.5, 4.0, 4.5, 4.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8, 4.8.1
.NET Standard 2.0, 2.1
UWP 10.0

CollectionBase(Int32)

Source:
CollectionBase.cs
Source:
CollectionBase.cs
Source:
CollectionBase.cs

Initializes a new instance of the CollectionBase class with the specified capacity.

C#
protected CollectionBase(int capacity);

Parameters

capacity
Int32

The number of elements that the new list can initially store.

Remarks

The capacity of a CollectionBase is the number of elements that the CollectionBase can hold. As elements are added to a CollectionBase, the capacity is automatically increased as required by reallocating the internal array.

If the size of the collection can be estimated, specifying the initial capacity eliminates the need to perform a number of resizing operations while adding elements to the CollectionBase.

This constructor is an O(n) operation, where n is capacity.

See also

Applies to

.NET 9 and other versions
Product Versions
.NET Core 1.0, Core 1.1, Core 2.0, Core 2.1, Core 2.2, Core 3.0, Core 3.1, 5, 6, 7, 8, 9
.NET Framework 2.0, 3.0, 3.5, 4.0, 4.5, 4.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8, 4.8.1
.NET Standard 2.0, 2.1
UWP 10.0