diff --git a/src/dlangui/dialogs/dialog.d b/src/dlangui/dialogs/dialog.d
index 54349e07..1b82ec52 100644
--- a/src/dlangui/dialogs/dialog.d
+++ b/src/dlangui/dialogs/dialog.d
@@ -162,7 +162,7 @@ class Dialog : VerticalLayout {
         if (action) {
             if (onDialogResult.assigned)
                 onDialogResult(this, action);
-            else if (_parentWindow)
+            else if (_parentWindow && !_popup)
                 _parentWindow.dispatchAction(action);
         }
         if (_popup)
diff --git a/src/dlangui/widgets/tree.d b/src/dlangui/widgets/tree.d
index 41b1877c..ff79efd1 100644
--- a/src/dlangui/widgets/tree.d
+++ b/src/dlangui/widgets/tree.d
@@ -668,6 +668,12 @@ class TreeWidgetBase :  ScrollWidget, OnTreeContentChangeListener, OnTreeStateCh
         _needUpdateWidgets = false;
     }
 
+    void clearAllItems() {
+        items.clear();
+        updateWidgets();
+        requestLayout();
+    }
+
     protected void updateWidgetStates() {
         for (int i = 0; i < _contentWidget.childCount; i++) {
             TreeItemWidget child = cast(TreeItemWidget)_contentWidget.child(i);