GeneratorPosition Структура

Определение

public value class GeneratorPosition

public struct GeneratorPosition

type GeneratorPosition = struct

Public Structure GeneratorPosition

Наследование

Object

ValueType

GeneratorPosition

Примеры

В следующем примере показано, GeneratorPosition как приступить к созданию перенаправления с начала списка элементов.

// Start generating items forward from the beginning of the item list
GeneratorPosition position = new GeneratorPosition(-1, 0);
GeneratorDirection direction = GeneratorDirection.Forward;
IItemContainerGenerator generator = (IItemContainerGenerator)this.itemsControl.ItemContainerGenerator;
generator.StartAt(position, direction);

' Start generating items forward from the beginning of the item list
Dim position As New GeneratorPosition(-1, 0)
Dim direction As GeneratorDirection = GeneratorDirection.Forward
Dim generator As IItemContainerGenerator = CType(Me.itemsControl.ItemContainerGenerator, IItemContainerGenerator)
generator.StartAt(position, direction)

В следующем примере показано, GeneratorPosition как начать создание обратно с конца списка элементов.

// Start generating items backward from the end of the item list
GeneratorPosition position = new GeneratorPosition(-1, 0);
GeneratorDirection direction = GeneratorDirection.Backward;
IItemContainerGenerator generator = (IItemContainerGenerator)this.itemsControl.ItemContainerGenerator;
generator.StartAt(position, direction);

' Start generating items backward from the end of the item list
Dim position As New GeneratorPosition(-1, 0)
Dim direction As GeneratorDirection = GeneratorDirection.Backward
Dim generator As IItemContainerGenerator = CType(Me.itemsControl.ItemContainerGenerator, IItemContainerGenerator)
generator.StartAt(position, direction)

В следующем примере показано, GeneratorPosition как приступить к созданию вперед из середины списка элементов.

// Start generating items forward,
// starting with the first unrealized item (offset of 1),
// after the 5th realized item
// (the item with index 4 among all realized items) in the list
GeneratorPosition position = new GeneratorPosition(4, 1);
GeneratorDirection direction = GeneratorDirection.Forward;
IItemContainerGenerator generator = (IItemContainerGenerator)this.itemsControl.ItemContainerGenerator;
generator.StartAt(position, direction);

' Start generating items forward,
' starting with the first unrealized item (offset of 1),
' after the 5th realized item
' (the item with index 4 among all realized items) in the list
Dim position As New GeneratorPosition(4, 1)
Dim direction As GeneratorDirection = GeneratorDirection.Forward
Dim generator As IItemContainerGenerator = CType(Me.itemsControl.ItemContainerGenerator, IItemContainerGenerator)
generator.StartAt(position, direction)

Комментарии

GeneratorPosition используется StartAt.