id	summary	reporter	owner	description	type	status	priority	milestone	component	version	resolution	keywords	cc
1181	Filling a TreeView from a background thread	guest	somebody	" 
Hello,

    I try to refresh the content from a TreeView from a background thread 
(created by forkIO). Basically from the background thread I call 
listStoreClear and several listStoreAppend  from the background thread. I also 
use the code from 'Real world Haskell'  
timeoutAddFull (yield >> return True)
                 priorityDefaultIdle 50
So that UI call's has a effect from the background, if I update the text of a 
label from the background thread this seems to work however for my treeview I 
get the error :
<<
There is a disparity between the internal view of the GtkTreeView,
and the GtkTreeModel.  This generally means that the model has changed
without letting the view know.  Any display from now on is likely to
be incorrect.


(Newsreader:31777): Gtk-CRITICAL **: 
gtk_tree_model_sort_convert_iter_to_child_iter: assertion `VALID_ITER 
(sorted_iter, tree_model_sort)' failed

(Newsreader:31777): Gtk-CRITICAL **: 
gtk_tree_model_sort_convert_iter_to_child_iter: assertion `VALID_ITER 
(sorted_iter, tree_model_sort)' failed
Newsreader: user error (ListStore.getRow: iter does not refer to a valid 
entry)
>>

Apparently I do something wrong, so how do you update a TreeView from a 
background thread (in C# or Java we must do the update on the thread of the UI 
but I do not seem to find a function to do this.

Any help is really appreciated.

Thanks

Marc Mertens"	defect	new	normal	0.10.1	general (Gtk+, Glib)	0.10.1			marc.lisp@…