loading form from another thread

i have main mdi parent window from which i want to load a form, but
during creating form object and later calling its Show method i want
to display progress and have the main window responsive. But the problem is
that i cannot load form from another thread, when i try to set its
MdiParent property to main window, i get message that parent and child
cant be on separate threads. I could invoke Show without setting MdiParent,
but when i do that the window dont show up cause the thread terminates
after calling Show, and if i try to suspend it, i get only a part of my
form, which is not responding.

I don't believe you can do the UI part of what you want on a different
thread. However, what exactly is taking a long time when you're
creating the form? Is it doing stuff like fetching from a database? If
so, you could put *that* part into another thread, then create the form
itself on the main UI thread when the rest of the work has been done.

I don't believe you can do the UI part of what you want on a different
thread. However, what exactly is taking a long time when you're
creating the form? Is it doing stuff like fetching from a database? If
so, you could put *that* part into another thread, then create the form
itself on the main UI thread when the rest of the work has been done.

the problem is that i want to load not the forms i know, but the foreign
forms that i cant make any assumptions about. i think the most workload
there will be placed in load event of the form. i thought about calling load
handlers myself from loading separate thread but, they might also need
some controls ready and loaded, which means i probably should call it only
after form is displayed by show. i was just wonder if it is possible to fully
create form in other thread and then link it somehow to main ui thread

API to "reparent" a UI in a different thread.