diff --git a/src/components/control/app-common-control/app-tree-exp-bar-base.tsx b/src/components/control/app-common-control/app-tree-exp-bar-base.tsx
index 7384eeaeefebabbdddd55091622857df2b0bf117..d49d7b63099473bf6ef6edf505d2eb13bbe1ce43 100644
--- a/src/components/control/app-common-control/app-tree-exp-bar-base.tsx
+++ b/src/components/control/app-common-control/app-tree-exp-bar-base.tsx
@@ -182,7 +182,7 @@ export class AppTreeExpBarBase extends TreeExpBarControlBase {
         <i-input
           search={true}
           on-on-change={($event: any) => {
-            this.searchText = $event.target.value;
+            this.searchText = $event.target.value.trim();
           }}
           placeholder={this.placeholder}
           on-on-search={() => this.onSearch()}