iter: d19 dataTable 选中态受控

packages/skin/ui/src/dataTable.ts

@@ -60,6 +60,20 @@ export function dataTable<T extends { id: RowKey }>(props: DataTableProps<T>): H
     });
   }
 
+  // —— 受控选中桥接：外部信号 ↔ 内核选择集；比较内容而非引用，避免来回派发 ——
+  if (props.selected) {
+    const selSig = props.selected;
+    const sameKeys = (a: RowKey[], b: RowKey[]): boolean => a.length === b.length && a.every((k, i) => k === b[i]);
+    effect(() => {
+      const external = selSig();
+      if (!sameKeys(external, state().selection)) table.dispatch({ type: 'setSelection', keys: external }); // 外部改写 → 内核
+    });
+    effect(() => {
+      const internal = state().selection;
+      if (!sameKeys(internal, selSig())) selSig([...internal]); // 内部勾选 → 写回外部（拷贝避免外部改到内核数组）
+    });
+  }
+
   const filterKey = props.filterKey ?? props.columns[0].key;
   const colspan = props.columns.length + (selectable ? 1 : 0);