From 52e36b0fd7eed79fd20cfa694206fa2da14103c7 Mon Sep 17 00:00:00 2001
From: croire <1432593898@qq.com>
Date: Tue, 8 Mar 2022 23:21:52 +0800
Subject: [PATCH] =?UTF-8?q?=E9=81=BF=E5=85=8D=E4=B8=8B=E8=BD=BD=E6=97=B6?=
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---
 DownKyi/Services/Download/AddToDownloadService.cs         | 2 +-
 DownKyi/ViewModels/Dialogs/ViewDownloadSetterViewModel.cs | 4 ++--
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/DownKyi/Services/Download/AddToDownloadService.cs b/DownKyi/Services/Download/AddToDownloadService.cs
index 13a3d4c..f6d1273 100644
--- a/DownKyi/Services/Download/AddToDownloadService.cs
+++ b/DownKyi/Services/Download/AddToDownloadService.cs
@@ -185,7 +185,7 @@ namespace DownKyi.Services.Download
             // 下载设置dialog中如果点击取消或者关闭窗口，
             // 会返回空字符串，
             // 这时直接退出
-            if (directory == string.Empty) { return null; }
+            if (directory == null || directory == string.Empty) { return null; }
 
             // 文件夹不存在则创建
             if (!Directory.Exists(directory))
diff --git a/DownKyi/ViewModels/Dialogs/ViewDownloadSetterViewModel.cs b/DownKyi/ViewModels/Dialogs/ViewDownloadSetterViewModel.cs
index 6603ec7..c62b6aa 100644
--- a/DownKyi/ViewModels/Dialogs/ViewDownloadSetterViewModel.cs
+++ b/DownKyi/ViewModels/Dialogs/ViewDownloadSetterViewModel.cs
@@ -56,7 +56,7 @@ namespace DownKyi.ViewModels.Dialogs
             {
                 SetProperty(ref directory, value);
 
-                if (directory != string.Empty)
+                if (directory != null && directory != string.Empty)
                 {
                     DriveName = directory.Substring(0, 1).ToUpper();
                     DriveNameFreeSpace = Format.FormatFileSize(HardDisk.GetHardDiskFreeSpace(DriveName));
@@ -381,7 +381,7 @@ namespace DownKyi.ViewModels.Dialogs
 
             // 弹出选择下载目录的窗口
             path = DialogUtils.SetDownloadDirectory();
-            if (path == null || path == "")
+            if (path == null || path == string.Empty)
             {
                 return null;
             }