From 9a5894c46ee9fe48644af72da59cc70c83c285ec Mon Sep 17 00:00:00 2001
From: afc163 <afc163@gmail.com>
Date: Mon, 9 Oct 2017 19:41:17 +0800
Subject: [PATCH] data should be call when beforeUpload promise resolved, close
 #7833

---
 components/upload/Upload.tsx | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/components/upload/Upload.tsx b/components/upload/Upload.tsx
index d607da550a..47b1c23b7e 100644
--- a/components/upload/Upload.tsx
+++ b/components/upload/Upload.tsx
@@ -219,12 +219,18 @@ export default class Upload extends React.Component<UploadProps, any> {
   }
 
   beforeUpload = (file, fileList) => {
-    if (this.props.beforeUpload && !this.props.beforeUpload(file, fileList)) {
+    if (!this.props.beforeUpload) {
+      return true;
+    }
+    const result = this.props.beforeUpload(file, fileList);
+    if (!result) {
       this.onChange({
         file,
         fileList,
       });
       return false;
+    } else if ((result as PromiseLike<any>).then) {
+      return result;
     }
     return true;
   }