diff --git a/package.json b/package.json
index 8a33b28..d0e8f50 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "element-pro-crud",
-  "version": "0.2.7",
+  "version": "0.2.8",
   "main": "lib/ProCrud.umd.min.js",
   "files": [
     "lib",
diff --git a/packages/form-designer/src/GenerateFormItem.vue b/packages/form-designer/src/GenerateFormItem.vue
index 2988eee..d992c37 100644
--- a/packages/form-designer/src/GenerateFormItem.vue
+++ b/packages/form-designer/src/GenerateFormItem.vue
@@ -682,6 +682,10 @@ export default class GenerateFormItem extends Vue {
     this.$emit('selection', selection);
   }
 
+  beforeDestroy() {
+    this.$EventBus.$off(`refresh:subTable:${this.widget.model}`);
+  }
+
   @Watch('dataModel')
   dataModelHandler(val) {
     this.$set(this.models, this.widget.model, val);