Document section behavior when not ordered by section

Change-Id: Id0345d477c253a5dd54306b06dae1df971ec76fc
Task-number: QTBUG-17757
Reviewed-by: Bea Lam

1 files changed, 8 insertions, 0 deletions

diff --git a/src/declarative/graphicsitems/qdeclarativelistview.cpp b/src/declarative/graphicsitems/qdeclarativelistview.cpp
index 7c01293..2e9822e 100644
--- a/src/declarative/graphicsitems/qdeclarativelistview.cpp
+++ b/src/declarative/graphicsitems/qdeclarativelistview.cpp
@@ -2302,11 +2302,19 @@ void QDeclarativeListView::setCacheBuffer(int b)
     depending on the "size" property of the model item. The \c sectionHeading
     delegate component provides the light blue bar that marks the beginning of
     each section.
+
        
     \snippet examples/declarative/modelviews/listview/sections.qml 0
 
     \image qml-listview-sections-example.png
 
+    \note Adding sections to a ListView does not automatically re-order the
+    list items by the section criteria.
+    If the model is not ordered by section, then it is possible that
+    the sections created will not be unique; each boundary between
+    differing sections will result in a section header being created
+    even if that section exists elsewhere.
+
     \sa {declarative/modelviews/listview}{ListView examples}
 */
 QDeclarativeViewSection *QDeclarativeListView::sectionCriteria()