diff --git a/frontend/src/components/widget/DeWidget/DeSelect.vue b/frontend/src/components/widget/DeWidget/DeSelect.vue
index cb9e8d8326..269f68eee1 100644
--- a/frontend/src/components/widget/DeWidget/DeSelect.vue
+++ b/frontend/src/components/widget/DeWidget/DeSelect.vue
@@ -83,7 +83,7 @@ export default {
         kids.forEach(kid => {
           contentWidth += kid.offsetWidth
         })
-        this.showNumber = contentWidth > (this.$refs.deSelect.$refs.tags.clientWidth * 0.9)
+        this.showNumber = contentWidth > ((this.$refs.deSelect.$refs.tags.clientWidth - 30) * 0.9)
       })
     },
 
diff --git a/frontend/src/views/dataset/common/DatasetGroupSelector.vue b/frontend/src/views/dataset/common/DatasetGroupSelector.vue
index 572974e556..0a82c28262 100644
--- a/frontend/src/views/dataset/common/DatasetGroupSelector.vue
+++ b/frontend/src/views/dataset/common/DatasetGroupSelector.vue
@@ -146,7 +146,7 @@ export default {
       expandedArray: [],
       groupForm: {
         name: '',
-        pid: null,
+        pid: '0',
         level: 0,
         type: '',
         children: [],
@@ -201,7 +201,7 @@ export default {
       this.editGroup = false
       this.groupForm = {
         name: '',
-        pid: null,
+        pid: '0',
         level: 0,
         type: '',
         children: [],
diff --git a/frontend/src/views/dataset/group/DsMoveSelector.vue b/frontend/src/views/dataset/group/DsMoveSelector.vue
index f2516e6d58..2f5d7f5618 100644
--- a/frontend/src/views/dataset/group/DsMoveSelector.vue
+++ b/frontend/src/views/dataset/group/DsMoveSelector.vue
@@ -36,7 +36,7 @@ export default {
       currGroup: '',
       groupForm: {
         name: '',
-        pid: null,
+        pid: '0',
         level: 0,
         type: '',
         children: [],
diff --git a/frontend/src/views/dataset/group/GroupMoveSelector.vue b/frontend/src/views/dataset/group/GroupMoveSelector.vue
index d5b738df9e..0e6e281bdc 100644
--- a/frontend/src/views/dataset/group/GroupMoveSelector.vue
+++ b/frontend/src/views/dataset/group/GroupMoveSelector.vue
@@ -36,7 +36,7 @@ export default {
       currGroup: '',
       groupForm: {
         name: '',
-        pid: null,
+        pid: '0',
         level: 0,
         type: 'group',
         children: [],