WorkflowView.RootDesigner Property

Definition

Namespace:

System.Workflow.ComponentModel.Design

Assembly:

System.Workflow.ComponentModel.dll

Gets or sets the root designer for the WorkflowView.

public:
 property System::Workflow::ComponentModel::Design::ActivityDesigner ^ RootDesigner { System::Workflow::ComponentModel::Design::ActivityDesigner ^ get(); void set(System::Workflow::ComponentModel::Design::ActivityDesigner ^ value); };

public System.Workflow.ComponentModel.Design.ActivityDesigner RootDesigner { get; set; }

member this.RootDesigner : System.Workflow.ComponentModel.Design.ActivityDesigner with get, set

Public Property RootDesigner As ActivityDesigner

Property Value

ActivityDesigner

The ActivityDesigner associated with the WorkflowView.

Examples

The following example shows how to retrieve the RootDesigner of a WorkflowView object. The workflowPanel field contains a method named GetWorkflowView that returns the active WorkflowView instance. The RootDesigner is then cast to a SequentialWorkflowRootDesigner before any action is taken on it.

This code example is part of the Basic DesignerHosting SDK Sample from the DesignerShell.cs file. For more information, see Basic Designer Hosting Sample.

private void addButton_Click(object sender, EventArgs e)
{
    SequentialWorkflowRootDesigner rootDesigner = this.workflowPanel.GetWorkflowView().RootDesigner as SequentialWorkflowRootDesigner;
    int viewId = rootDesigner.ActiveView.ViewId;
    if (viewId == 1)
    {
        this.workflowPanel.OnCodeActivityAdded();
    }
    else
    {
        DialogResult resultBox = MessageBox.Show("This sample supports adding a code activity only in workflow view");
    }
}

Private Sub addButton_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles addButton.Click
    Dim viewId As Integer
    Dim rootDesigner As SequentialWorkflowRootDesigner
    rootDesigner = Me.workflowPanel.GetWorkflowView().RootDesigner
    viewId = rootDesigner.ActiveView.ViewId
    If viewId = 1 Then
        Me.workflowPanel.OnCodeActivityAdded()
    Else
        Dim resultBox As DialogResult
        resultBox = MessageBox.Show("This sample supports adding a code activity only in workflow view")
    End If
End Sub

Remarks

The root designer of the workflow is the designer associated with the design surface of the workflow. It contains all child designers, and subsequently all activities in the workflow.