ActivityToolboxItem Class

Definition

public ref class ActivityToolboxItem : System::Drawing::Design::ToolboxItem

[System.Serializable]
public class ActivityToolboxItem : System.Drawing.Design.ToolboxItem

[System.Serializable]
[System.Obsolete("The System.Workflow.* types are deprecated.  Instead, please use the new types from System.Activities.*")]
public class ActivityToolboxItem : System.Drawing.Design.ToolboxItem

[<System.Serializable>]
type ActivityToolboxItem = class
    inherit ToolboxItem

[<System.Serializable>]
[<System.Obsolete("The System.Workflow.* types are deprecated.  Instead, please use the new types from System.Activities.*")>]
type ActivityToolboxItem = class
    inherit ToolboxItem

Public Class ActivityToolboxItem
Inherits ToolboxItem

Inheritance

Object

ToolboxItem

ActivityToolboxItem

Attributes

SerializableAttribute ObsoleteAttribute

Examples

The following example shows a complete ActivityToolboxItem class for a custom activity. In this example, the CreateComponentsCore method is overridden in order to place 2 custom activities within a ParallelActivity.

[Serializable]
internal sealed class CustomActivityToolboxItem : ActivityToolboxItem
{
    public CustomActivityToolboxItem(Type type)
        : base(type)
    {
    }

    private CustomActivityToolboxItem(SerializationInfo info, StreamingContext context)
    {
        Deserialize(info, context);
    }

    protected override IComponent[] CreateComponentsCore(IDesignerHost designerHost)
    {
        CompositeActivity parallel = new ParallelActivity();
        parallel.Activities.Add(new CustomActivity());
        parallel.Activities.Add(new CustomActivity());

        return new IComponent[] { parallel };
    }
}

<Serializable()> _
Friend Class CustomActivityToolboxItem
    Inherits ActivityToolboxItem

    Public Sub New(ByVal type As Type)
        MyBase.new(type)
    End Sub

    Private Sub New(ByVal info As SerializationInfo, ByVal context As StreamingContext)
        Deserialize(info, context)
    End Sub

    Protected Overrides Function CreateComponentsCore(ByVal designerHost As IDesignerHost) As IComponent()
        Dim parallel As New ParallelActivity()
        parallel.Activities.Add(New CustomActivity())
        parallel.Activities.Add(New CustomActivity())

        Return New IComponent() {parallel}
    End Function
End Class

Remarks

All toolbox items associated with an Activity class are derived from ActivityToolboxItem. This class displays a graphical representation of an Activity class in the toolbox of a design-time environment and creates an instance of the Activity class it is associated with when a user drags it onto the design surface. The activity toolbox item typically represents an activity to create when invoked on a design-mode document.

This class inherits directly from the ToolboxItem class.

Constructors

Properties

Methods

Events

Explicit Interface Implementations

Applies to