From 374c94d08aadf593394c16e89c273a6e16b6e559 Mon Sep 17 00:00:00 2001
From: liaoxuezhi <liaoxuezhi@baidu.com>
Date: Mon, 19 Aug 2019 12:01:33 +0800
Subject: [PATCH] =?UTF-8?q?Textarea=20=E5=80=BC=E4=B8=BA=20null=20?=
 =?UTF-8?q?=E6=97=B6=E6=98=BE=E7=A4=BA=E4=B8=BA=E7=A9=BA?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 src/renderers/Form/Textarea.tsx | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/renderers/Form/Textarea.tsx b/src/renderers/Form/Textarea.tsx
index 33384127f..845dd76ef 100644
--- a/src/renderers/Form/Textarea.tsx
+++ b/src/renderers/Form/Textarea.tsx
@@ -91,7 +91,7 @@ export default class TextAreaControl extends React.Component<TextAreaProps, any>
                 disabled={disabled}
                 type={type}
                 className={cx(`${ns}TextareaControl`, className)}
-                value={typeof value === 'undefined' ? '' : typeof value === 'string' ? value : JSON.stringify(value)}
+                value={typeof value === 'undefined' || value === null ? '' : typeof value === 'string' ? value : JSON.stringify(value)}
                 placeholder={placeholder}
                 minRows={minRows}
                 maxRows={maxRows}