GeneratorPosition Struct
Definition
Important
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GeneratorPosition is used to describe the position of an item that is managed by ItemContainerGenerator.
public value class GeneratorPosition
public struct GeneratorPosition
type GeneratorPosition = struct
Public Structure GeneratorPosition
- Inheritance
Examples
The following example illustrates how to use GeneratorPosition to start generating forward from the beginning of an item list.
// 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)
The following example illustrates how to use GeneratorPosition to start generating backward from the end of an item list.
// 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)
The following example illustrates how to use GeneratorPosition to start generating forward from the middle of an item list.
// 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)
Remarks
GeneratorPosition is used by StartAt.
Constructors
GeneratorPosition(Int32, Int32) |
Initializes a new instance of GeneratorPosition with the specified index and offset. |
Properties
Index |
Gets or sets the Int32 index that is relative to the generated (realized) items. |
Offset |
Gets or sets the Int32 offset that is relative to the ungenerated (unrealized) items near the indexed item. |
Methods
Equals(Object) |
Compares the specified instance and the current instance of GeneratorPosition for value equality. |
GetHashCode() |
Returns the hash code for this GeneratorPosition. |
ToString() |
Returns a string representation of this instance of GeneratorPosition. |
Operators
Equality(GeneratorPosition, GeneratorPosition) |
Compares two GeneratorPosition objects for value equality. |
Inequality(GeneratorPosition, GeneratorPosition) |
Compares two GeneratorPosition objects for value inequality. |
Applies to
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