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uniapp/youjiala/src/components/admin-list/admin-list.vue

@@ -110,8 +110,13 @@ const selectedRows = computed(() =>
     selectedKeys.value.map(key => selectedPool.value[key]).filter(Boolean),
 );
 
+// 全选态只看"当前可见行是否都被勾选"，不能用 selectedRows.length 对比 rows.length：
+// 选择器页开启 keepSelectionOnReload 后，selectedRows 会含被搜索过滤掉的已选行，
+// 两个集合数量碰巧相等会误判成全选，用户点一下全选反而把跨搜索的已选整组清空。
 const allSelected = computed(
-    () => rows.value.length > 0 && selectedRows.value.length === rows.value.length,
+    () =>
+        rows.value.length > 0 &&
+        rows.value.every(row => selectedKeys.value.includes(keyOf(row))),
 );
 
 function clearSelection(): void {
@@ -139,17 +144,25 @@ function toggleSelect(row: AdminRow): void {
 }
 
 function toggleSelectAll(): void {
-    if (allSelected.value) {
-        clearSelection();
-        return;
-    }
-    selectedKeys.value = rows.value.map(row => keyOf(row));
+    // 全选/取消全选只作用于"当前可见行"，保留此前跨搜索/跨页已选的其他行；
+    // keys 与 pool 必须同步增删，否则 pool 会残留 keys 里已不存在的孤儿行对象。
+    const visible = rows.value.map(row => keyOf(row));
     const pool = { ...selectedPool.value };
-    for (const row of rows.value) {
-        pool[keyOf(row)] = row;
+    if (allSelected.value) {
+        const drop = new Set(visible);
+        selectedKeys.value = selectedKeys.value.filter(key => !drop.has(key));
+        for (const key of visible) {
+            delete pool[key];
+        }
+    }
+    else {
+        for (const row of rows.value) {
+            pool[keyOf(row)] = row;
+        }
+        selectedKeys.value = [...new Set([...selectedKeys.value, ...visible])];
     }
     selectedPool.value = pool;
-    emit("selection-change", selectedKeys.value.map(key => pool[key]).filter(Boolean));
+    emit("selection-change", selectedRows.value);
 }
 
 function onLongPress(row: AdminRow): void {