Handling Modeless dialogs/property sheets in your view class

I have a feature called GoTo in the edit menu, (just like in msvc) which is a modeless dlg created in the CMainFrame, the goto dlg is shown upon request. the user basically enters the line number of which he/she wishes to jump to.

The problem is that im working on a MDI application, and the dlg must work for all document windows. how can i notify the active document that the user has requested to jump to a line, and get the document view to receive the field which contains the line number?