diff --git a/packages/designer/src/components/components/view-model-designer/method-manager/components/method-list/method-list.component.tsx b/packages/designer/src/components/components/view-model-designer/method-manager/components/method-list/method-list.component.tsx
index 253e06fde2fdca965d52e62d5a3e25168bbdab45..cf6a09df6b4e64edb9adf5bdd419fe97d3933ebf 100644
--- a/packages/designer/src/components/components/view-model-designer/method-manager/components/method-list/method-list.component.tsx
+++ b/packages/designer/src/components/components/view-model-designer/method-manager/components/method-list/method-list.component.tsx
@@ -117,7 +117,7 @@ export default defineComponent({
                     return param.name === 'lookupId';
                 });
                 if (lookupIdParam && !lookupIdParam.value) {
-                    messageService?.warning('请先选择参照帮助');
+                    messageService?.warning('请先选择数据源。');
                     return false;
                 }
                 const foundParam = selectedData.params.find((paramItem: any) => paramItem?.controlSource?.type === 'Select');
diff --git a/packages/designer/src/components/composition/command.service.tsx b/packages/designer/src/components/composition/command.service.tsx
index 77eca927cfb276542c81f45ac6678b8905db1e25..fc573900fbf099bfe212bc3a1d4c461555ade8ee 100644
--- a/packages/designer/src/components/composition/command.service.tsx
+++ b/packages/designer/src/components/composition/command.service.tsx
@@ -250,7 +250,7 @@ export function useFormCommandService(
                 return param.name === 'lookupId';
             });
             if (lookupIdParam && !lookupIdParam.value) {
-                messageService?.warning('请先选择参照帮助');
+                messageService?.warning('请先选择数据源。');
                 return false;
             }
             const foundParam = currentCommand.params.find((paramItem: any) => paramItem.name === 'lookupId');
diff --git a/packages/ui-vue/components/events-editor/src/components/parameter-editor/parameter-editor.component.tsx b/packages/ui-vue/components/events-editor/src/components/parameter-editor/parameter-editor.component.tsx
index b4f51f629c71f0c1f91251cded2fea9436543010..2da3ff79c010e8f9134c9fd23c5c5347d64b38ef 100644
--- a/packages/ui-vue/components/events-editor/src/components/parameter-editor/parameter-editor.component.tsx
+++ b/packages/ui-vue/components/events-editor/src/components/parameter-editor/parameter-editor.component.tsx
@@ -222,6 +222,15 @@ export default defineComponent({
                     onEditorBlurHandler();
                 }}
                 onValueChange={(event) => {
+                    // 隐藏帮助命令下，切换帮助后，字段映射值清空
+                    if (propertyItem.origin?.Code === 'lookupId') {
+                        const fieldMappingParamItem = command.value.property?.find((param: any) => {
+                            return param.name === 'mappingFields';
+                        });
+                        if (fieldMappingParamItem && fieldMappingParamItem.value) {
+                            fieldMappingParamItem.value = '';
+                        }
+                    }
                     onEditorChangeHandler(event, propertyItem);
                     onEditorBlurHandler();
                     // 隐藏帮助命令下，切换帮助后，字段映射值清空
diff --git a/packages/ui-vue/components/tree-grid/src/tree-grid.component.tsx b/packages/ui-vue/components/tree-grid/src/tree-grid.component.tsx
index 04383534ac4124cb4a8af827cccaee27cfe751c6..052e8ca0484a8de842f4769294cfd9750ad51468 100644
--- a/packages/ui-vue/components/tree-grid/src/tree-grid.component.tsx
+++ b/packages/ui-vue/components/tree-grid/src/tree-grid.component.tsx
@@ -484,6 +484,16 @@ export default defineComponent({
         function getCollapseField() {
             return collapseField.value;
         }
+
+        function selectRowById(dataItemId: string) {
+            const idField = useIdentifyComposition.idField.value;
+            const visibleItemToBeSelected = visibleDatas.value.find((visibleData: VisualData) => {
+                return visibleData.raw[idField] === dataItemId;
+            }) as VisualData;
+            if (visibleItemToBeSelected) {
+                useRowComposition.selectRow(visibleItemToBeSelected);
+            }
+        }
         context.expose({
             activeRowById,
             addNewDataItem,
@@ -508,7 +518,8 @@ export default defineComponent({
             reassignRowData,
             hasChildren,
             getCollapseField,
-            getCollapseStatusById
+            getCollapseStatusById,
+            selectRowById
         });
 
         const gridContentStyle = computed(() => {