I have a entity diagram and I am validationg a connection on arrow creataion. I validate the inputs and outputs for each table so that they correspond, ie output 1 on table A connects to input 1 on table B etc. On each table I have multipile outputs, 2, and inputs, 2.

When I delete an arrow, because the origin input does not match the destination output, no matter which method I use the diagram does not delete the arrow untill I click some where on the diagram.

Focus, update and invalidate do not work. How can I get the diagram to update without the user having to click the form