From 298acdae9aed17e2bfced3b4a7ee5fa282eee7f0 Mon Sep 17 00:00:00 2001
From: junjie <junjie.xia@fit2cloud.com>
Date: Fri, 3 Dec 2021 15:58:36 +0800
Subject: [PATCH] =?UTF-8?q?feat(=E6=95=B0=E6=8D=AE=E9=9B=86):=20=E5=85=B3?=
 =?UTF-8?q?=E8=81=94=E6=95=B0=E6=8D=AE=E9=9B=86?=
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---
 frontend/src/views/dataset/add/AddUnion.vue | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/frontend/src/views/dataset/add/AddUnion.vue b/frontend/src/views/dataset/add/AddUnion.vue
index 39e1bb0790..68d13975d1 100644
--- a/frontend/src/views/dataset/add/AddUnion.vue
+++ b/frontend/src/views/dataset/add/AddUnion.vue
@@ -20,7 +20,7 @@
           <el-input v-model="name" size="mini" :placeholder="$t('commons.name')" clearable />
         </el-form-item>
         <el-form-item class="form-item">
-          <el-button size="mini" @click="previewData">
+          <el-button :disabled="dataset.length === 0" size="mini" @click="previewData">
             {{ $t('dataset.preview_result') }}
           </el-button>
         </el-form-item>