Handle TreeDataTemplate.ItemsSelector == null.

10 years ago · 813ff6fcea
1 changed files with 7 additions and 1 deletions
--- a/src/Perspex.Controls/Generators/TreeItemContainerGenerator.cs
+++ b/src/Perspex.Controls/Generators/TreeItemContainerGenerator.cs
@ -77,7 +77,13 @@ namespace Perspex.Controls.Generators
                var result = new T();

                result.SetValue(ContentProperty, template.Build(item));
-                BindingOperations.Apply(result, ItemsProperty, template.ItemsSelector(item), null);
+
+                var itemsSelector = template.ItemsSelector(item);
+
+                if (itemsSelector != null)
+                {
+                    BindingOperations.Apply(result, ItemsProperty, itemsSelector, null);
+                }

                if (!(item is IControl))
                {