PlacementAdapter.GetPlacementBoundary Method (ModelItem, PlacementIntent, array<RelativeValue )

Gets the boundary of the specified item's parent.

Namespace:  Microsoft.Windows.Design.Interaction
Assembly:  Microsoft.Windows.Design.Interaction (in Microsoft.Windows.Design.Interaction.dll)

Syntax

'Declaration
Public MustOverride Function GetPlacementBoundary ( _
    item As ModelItem, _
    intent As PlacementIntent, _
    ParamArray positions As RelativeValue() _
) As Rect

public abstract Rect GetPlacementBoundary(
    ModelItem item,
    PlacementIntent intent,
    params RelativeValue[] positions
)

public:
virtual Rect GetPlacementBoundary(
    ModelItem^ item, 
    PlacementIntent intent, 
    ... array<RelativeValue>^ positions
) abstract

abstract GetPlacementBoundary : 
        item:ModelItem * 
        intent:PlacementIntent * 
        positions:RelativeValue[] -> Rect 

public abstract function GetPlacementBoundary(
    item : ModelItem, 
    intent : PlacementIntent, 
    ... positions : RelativeValue[]
) : Rect

Parameters

• item
  Type: Microsoft.Windows.Design.Model.ModelItem
  Item parent boundary to find.

• intent
  Type: Microsoft.Windows.Design.Interaction.PlacementIntent
  Specifies the reason for this placement call.

• positions
  Type: array<Microsoft.Windows.Design.Interaction.RelativeValue[]
  Array of placement positions to set.

Return Value

Type: System.Windows.Rect
A Rect representing the boundary of the parent of item.

Exceptions

Exception	Condition
ArgumentNullException	item is nulla null reference (Nothing in Visual Basic).

Remarks

The PlacementIntent is used by the placement adapter to fill in missing values from the specified placement positions. For example, if the PlacementIntent is Move and you pass in a value for LeftSide, but not RightSide, the placement adapter adjusts the right side so that the size of the control remains constant.

.NET Framework Security

• Full trust for the immediate caller. This member cannot be used by partially trusted code. For more information, see Using Libraries from Partially Trusted Code.

See Also

Reference

PlacementAdapter Class

GetPlacementBoundary Overload

Microsoft.Windows.Design.Interaction Namespace

AdornerPlacementCollection

AdornerPanel

Other Resources

Walkthrough: Creating a Design-time Adorner

Adorner Architecture