Hi!
Consider the situation when we have a form with dynamic loading frames. Inside the frame we have a control initiating a long process which need a lock indicator. But if you assign the indicator laying on the form with the particular event of the frame's control, it will not be shown. As a workaround you can create dummy invisible button on the form and set its indicator property. Then the indicator for the frame's control will appear. I made a sample project illustrating this issue.