Have to implement wxPGProperty::DeleteChildren() differently so that it will work...

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@63593 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

diff --git a/src/propgrid/property.cpp b/src/propgrid/property.cpp
index 4e82bcc338f0bddbd27b241554d95a7111645f1f..893eb3f0a6ee43d960c58ce6ce7733385134d0b7 100644 (file)
--- a/src/propgrid/property.cpp
+++ b/src/propgrid/property.cpp
@@ -2455,10 +2455,16 @@ void wxPGProperty::DeleteChildren()
 {
     wxPropertyGridPageState* state = m_parentState;
 
-    while ( GetChildCount() )
+    if ( !GetChildCount() )
+        return;
+
+    // Because deletion is sometimes deferred, we have to use
+    // this sort of code for enumerating the child properties.
+    unsigned int i = GetChildCount();
+    while ( i > 0 )
     {
-        wxPGProperty* child = Item(GetChildCount()-1);
-        state->DoDelete(child, true);
+        i--;
+        state->DoDelete(Item(i), true);
     }
 }