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PlacementAdapter Class

An adapter that is used to get and set positions of objects in parent coordinates.

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

Syntax

'Declaration
Public MustInherit Class PlacementAdapter _
    Inherits Adapter
'Usage
Dim instance As PlacementAdapter
public abstract class PlacementAdapter : Adapter
public ref class PlacementAdapter abstract : public Adapter
public abstract class PlacementAdapter extends Adapter

Remarks

PlacementAdapter is used by grab handles to size and move controls. Placement adapters work by supporting reading and writing values as relative positions. To a PlacementAdapter everything is relative, so relative difference (deltas) are important. A PlacementAdapter takes a relative value and converts it into one or more property sets. To use a PlacementAdapter first query it to see whether it can set a position you are interested in setting. Then, use the results of this to get and set values through the GetPlacement and SetPlacements methods.

Inheritance Hierarchy

System.Object
  Microsoft.Windows.Design.Features.FeatureProvider
    Microsoft.Windows.Design.Interaction.Adapter
      Microsoft.Windows.Design.Interaction.PlacementAdapter
        Microsoft.Windows.Design.Interaction.RootPlacementAdapter

Thread Safety

Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.

See Also

Reference

PlacementAdapter Members

Microsoft.Windows.Design.Interaction Namespace

AdornerPlacementCollection

AdornerPanel

Other Resources

Walkthrough: Creating a Design-time Adorner

Adorner Architecture