fix: 仪表板选项卡未选择视图时拖动报错

frontend/src/components/canvas/custom-component/UserView.vue

@@ -211,7 +211,10 @@ export default {
   created() {
     this.refId = uuid.v1
     // this.filter.filter = this.$store.getters.conditions
-    this.getData(this.element.propValue.viewId)
+    if (this.element && this.element.propValue && this.element.propValue.viewId) {
+      this.getData(this.element.propValue.viewId)
+    }
+
     // this.initAreas()
   },
   mounted() {

frontend/src/components/widget/DeWidget/DeTabs.vue

@@ -35,7 +35,7 @@
         </span>
 
         <div v-if="activeTabName === item.name" class="de-tab-content">
-          <user-view v-if="item.content" :ref="item.name" :element="item.content" :out-style="outStyle" />
+          <user-view v-if="item.content && item.content.propValue && item.content.propValue.viewId" :ref="item.name" :element="item.content" :out-style="outStyle" />
         </div>
 
       </el-tab-pane>