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alielie

2025-08-25 c4a3f8db90530a727ffab77c3bb5bb7d782792bf

 HMI.UI/Controls/treegrid/Controls/TreeDataGrid.cs

@@ -19,10 +19,10 @@

        static TreeDataGrid()
        {
            //ScrollViewer.HorizontalScrollBarVisibilityProperty
            //    .OverrideMetadata(typeof(TreeDataGrid), new FrameworkPropertyMetadata(ScrollBarVisibility.Disabled));
            //ScrollViewer.VerticalScrollBarVisibilityProperty
            //    .OverrideMetadata(typeof(TreeDataGrid), new FrameworkPropertyMetadata(ScrollBarVisibility.Disabled));
            ScrollViewer.HorizontalScrollBarVisibilityProperty
                .OverrideMetadata(typeof(TreeDataGrid), new FrameworkPropertyMetadata(ScrollBarVisibility.Disabled));
            ScrollViewer.VerticalScrollBarVisibilityProperty
                .OverrideMetadata(typeof(TreeDataGrid), new FrameworkPropertyMetadata(ScrollBarVisibility.Disabled));
        }

        protected override DependencyObject GetContainerForItemOverride()
@@ -48,21 +48,36 @@
        {
            if (e.OldValue != null && e.OldValue is TreeItemData oldTreeData)
            {
                oldTreeData.IsExpandedChange -= DataIsExpandedChange;
                oldTreeData.VisibleChange -= DataVisiableChange;
            }
            if (DataContext != null && DataContext is TreeItemData treeData)
            {
                Visibility = treeData.IsVisible ? Visibility.Visible : Visibility.Collapsed;
                treeData.IsExpandedChange += DataIsExpandedChange;
                treeData.VisibleChange += DataVisiableChange;
            }
        }

        private void DataIsExpandedChange(object sender, bool IsExpanded)
        {
            object parent = ItemsControl.ItemsControlFromItemContainer(this);
            if (sender is TreeItemData tid)
            {
                foreach (var data in tid.Items)
                {
                    data.IsVisible = IsExpanded;
                }
            }
        }

        private void DataVisiableChange(object sender, bool visiable)
        {
            object parent = ItemsControl.ItemsControlFromItemContainer(this);
            if (parent != null && parent is TreeDataGrid treeDataGrid)
            {
                treeDataGrid.OnExpandedChange(visiable);
            }
            this.Visibility = visiable ? Visibility.Visible : Visibility.Collapsed;
            //if (parent != null && parent is TreeDataGrid treeDataGrid)
            //{
            //    treeDataGrid.OnExpandedChange(visiable);
            //}
        }
    }
}