From 0ff4a5e35910d7665975276eb249b4fa94506fd9 Mon Sep 17 00:00:00 2001
From: shine <zheng@fanruan.com>
Date: Tue, 8 Dec 2020 11:41:09 +0800
Subject: [PATCH] =?UTF-8?q?=E4=BB=A3=E7=A0=81=E8=B4=A8=E9=87=8F?=
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---
 .../src/main/java/com/fr/extended/chart/UIComboBoxWithNone.java | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/designer-chart/src/main/java/com/fr/extended/chart/UIComboBoxWithNone.java b/designer-chart/src/main/java/com/fr/extended/chart/UIComboBoxWithNone.java
index 0459cd710..65e7bbb43 100644
--- a/designer-chart/src/main/java/com/fr/extended/chart/UIComboBoxWithNone.java
+++ b/designer-chart/src/main/java/com/fr/extended/chart/UIComboBoxWithNone.java
@@ -23,7 +23,7 @@ public class UIComboBoxWithNone extends UIComboBox {
     }
 
     protected void setDefaultSelectedItem() {
-        setSelectedItem(null);
+        setSelectedItem(StringUtils.EMPTY);
     }
 
     @Override