DragSelectingTool Class

The DragSelectingTool lets the user select multiple parts within a rectangular area drawn by the user.

Object Model

Syntax

[DesignTimeVisible(false)]
[StyleTypedProperty(Property="FocusVisualStyle", StyleTargetType=System.Windows.Controls.Control)]
[XmlLangProperty("Language")]
[UsableDuringInitialization(true)]
[RuntimeNameProperty("Name")]
[UidProperty("Uid")]
[TypeDescriptionProvider(MS.Internal.ComponentModel.DependencyObjectProvider)]
[NameScopeProperty("NameScope", System.Windows.NameScope)]
public class DragSelectingTool : DiagramTool, IDiagramTool

Remarks

This is a standard mouse-move tool, the Northwoods.GoXam.Diagram.DragSelectingTool. However this cannot start running unless there has been a motionless delay after the mouse-down event of at least Delay milliseconds.

For example, you can change the selection policy in XAML by: <go:Diagram ...> <go:Diagram.DragSelectingTool> <go:DragSelectingTool Include="Intersects" /> </go:Diagram.DragSelectingTool> </go:Diagram> Or you can customize the default Northwoods.GoXam.Diagram.DragSelectingTool in code: myDiagram.DragSelectingTool.Include = SearchInclusion.Intersects;

Selection occurs on a mouse up calling SelectInRect with the value of ComputeBoxBounds. If you want real-time selection to occur during the drag: public class RealtimeDragSelectingTool : DragSelectingTool { public override void DoMouseMove() { base.DoMouseMove(); if (this.Active) SelectInRect(ComputeBoxBounds()); } } and install in XAML by: <go:Diagram ...> <go:Diagram.DragSelectingTool> <local:RealtimeDragSelectingTool Include="Intersects" /> </go:Diagram.DragSelectingTool> </go:Diagram> Or you can install in code by: myDiagram.DragSelectingTool = new RealtimeDragSelectingTool() { Include = SearchInclusion.Intersects };

This tool does not utilize any Northwoods.GoXam.Adornments or tool handles.

This tool does not edit the model.

Inheritance Hierarchy

System.Object
   System.Windows.Threading.DispatcherObject
      System.Windows.DependencyObject
         System.Windows.Media.Visual
            System.Windows.UIElement
               System.Windows.FrameworkElement
                  Northwoods.GoXam.Tool.DiagramTool
                     Northwoods.GoXam.Tool.DragSelectingTool

Reference

DragSelectingTool Members
Northwoods.GoXam.Tool Namespace