IVectorView<T>
IVectorView<T>
IVectorView<T>
IVectorView<T>
Interface
Definition
Represents an immutable view into a vector.
.NET This interface appears to .NET code as System.Collections.Generic.IReadOnlyList
due to .NET language projection. In any case where a Windows Runtime type has implemented IVectorView;, .NET code can use the APIs of IReadOnlyList instead.
public : interface IVectorView<T>public interface IVectorView<T>Public Interface IVectorView<T>// You can use this interface in JavaScript.
- Attributes
| Device family |
Windows 10 (introduced v10.0.10240.0)
|
| API contract |
Windows.Foundation.FoundationContract (introduced v1)
|
Remarks
For read-write collections, the IVectorView; interface is still relevant, because the IVector.GetView method returns an IVectorView; instance.
When programming with .NET, this interface is hidden and developers should use the interface if they want to implement a read-only vector/list type. In any case where a Windows Runtime type has implemented IVectorView;, .NET code can use the APIs of instead. This includes all the existing Windows Runtime API and also scenarios such as using the APIs of Windows Runtime components originally implemented in Visual C++ component extensions (C++/CX) from a C# or Visual Basic app.
Interface inheritance
IVectorView inherits IIterable. Types that implement IVectorView also implement the interface members of IIterable. Similarly, if you're using .NET, there is support for IEnumerable
Properties
Size Size Size Size
Gets the number of items in the vector view.
public : unsigned int Size { get; }public uint Size { get; }Public ReadOnly Property Size As uint// You can use this property in JavaScript.
- Value
- unsigned int uint uint uint
The number of items in the vector view.
Remarks
When programming with .NET, this interface is hidden and developers should use the interface.
- See Also
Methods
GetAt(UInt32) GetAt(UInt32) GetAt(UInt32) GetAt(UInt32)
Returns the item at the specified index in the vector view.
public : T GetAt(unsigned int index)public T GetAt(UInt32 index)Public Function GetAt(index As UInt32) As T// You can use this method in JavaScript.
- index
- unsigned int UInt32 UInt32 UInt32
The zero-based index of the item.
The item at the specified index.
Remarks
When programming with .NET, this interface is hidden and developers should use the interface.
- See Also
GetMany(UInt32, T[]) GetMany(UInt32, T[]) GetMany(UInt32, T[]) GetMany(UInt32, T[])
Gets a collection of items from the vector view beginning at the given index.
public : unsigned int GetMany(unsigned int startIndex, T[] items)public uint GetMany(UInt32 startIndex, T[] items)Public Function GetMany(startIndex As UInt32, items As T[]) As uint// You can use this method in JavaScript.
- startIndex
- unsigned int UInt32 UInt32 UInt32
The zero-based index to start at.
- items
- T[] T[] T[] T[]
An array to copy the items into.
A status code indicating the result of the operation.
Remarks
When programming with .NET, this interface is hidden. Use the IList interface instead.
IndexOf(T, UInt32) IndexOf(T, UInt32) IndexOf(T, UInt32) IndexOf(T, UInt32)
Retrieves the index of a specified item in the vector view.
public : PlatForm::Boolean IndexOf(T value, unsigned int index)public bool IndexOf(T value, UInt32 index)Public Function IndexOf(value As T, index As UInt32) As bool// You can use this method in JavaScript.
- value
- T T T T
The item to find in the vector view.
- index
- unsigned int UInt32 UInt32 UInt32
If the item is found, this is the zero-based index of the item; otherwise, this parameter is 0.
true if the item is found; otherwise, false.
Remarks
When programming with .NET, this interface is hidden and developers should use the interface.
- See Also