RootDesigner Property

WorkflowView.RootDesigner Property

Gets or sets the root designer for the WorkflowView.

Namespace:  System.Workflow.ComponentModel.Design
Assembly:  System.Workflow.ComponentModel (in System.Workflow.ComponentModel.dll)

public ActivityDesigner RootDesigner { get; set; }

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.

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");
    }
}

Windows 7, Windows Vista, Windows XP SP2, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003

The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

.NET Framework

Supported in: 3.5, 3.0

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