Re-hosted workflow designer - read-only view

Question

Hi

I have re-hosted the workflow designer in my own application. Now I want to make the workflow view read-only. I know I can disallow drag&drop but delete and move should also be disabled. I still want the user to be able to scroll in the view.

Can anyone help.

Best regards, Michael

Answer 1

I came up with this solutaion:

1. Created a MessageFilter inherited from WorkflowDesignerMessageFilter and attached it to the WorkflowView.

2. Override method OnKeyDown

       if (eventArgs.KeyCode == Keys.Delete)
       {
           if(m_WorkflowView.AllowDrop)
           {
               return base.OnKeyDown(eventArgs);
           }
       }
       return true;
   

In this case I set AllowDrop to false on read-only view and true in DesignTime. If anyone has a better suggestion, please let me know.

Best regards, Michael