Request refresh of LVN_GETEMPTYMARKUP

Question

I am using the LVN_GETEMPTYMARKUP to show some text in my ListCtrl until it gets some content. The problem I am facing is I can't seem to find a way to refresh this text and effectively force ListCtrl to send this notification more than once.

Is there a way to tell ListCtrl to refresh the "markup"?

Answer 1

Well this is a fairly old thread however i came across to this and will provide an answer for anyone that came to same place like me.

It is possible to resend LVN_GETEMPTYMARKUP message to the listview by sending LVM_RESETEMPTYTEXT = (LVM_FIRST + 84) message to the listview or by obtaining IListView interface and executing ResetEmptyText method. In this way you can conditionaly change or clear the empty text :)

Answer 2

I looked at the source, and it appears that the listview control sends the LVN_GETEMPTYMARKUP query exactly once and caches the result.

Therefore, I believe that the only way to get the behavior you're looking for is to recreate the control as appropriate.