From 4b393c6c13ed8cabfe00f5c145e0ed0fe7a0c6af Mon Sep 17 00:00:00 2001
From: Candy <cdy816@hotmail.com>
Date: Sat, 29 May 2021 12:08:44 +0800
Subject: [PATCH] =?UTF-8?q?Bug=20=E4=BF=AE=E5=A4=8D?=
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---
 .../ViewModel/DeviceDetailViewModel.cs                    | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/Develop/InSpiderDevelopWindow/ViewModel/DeviceDetailViewModel.cs b/Develop/InSpiderDevelopWindow/ViewModel/DeviceDetailViewModel.cs
index 86e79415..b5256f2e 100644
--- a/Develop/InSpiderDevelopWindow/ViewModel/DeviceDetailViewModel.cs
+++ b/Develop/InSpiderDevelopWindow/ViewModel/DeviceDetailViewModel.cs
@@ -1902,7 +1902,7 @@ public string Name
             }
             set
             {
-                if (mModel.Name != value)
+                if (mModel != null && mModel.Name != value)
                 {
                     mModel.Name = value;
                     OnPropertyChanged("Name");
@@ -1921,7 +1921,7 @@ public string DatabaseName
             }
             set
             {
-                if (mModel.DatabaseName != value)
+                if (mModel != null && mModel.DatabaseName != value)
                 {
                     mModel.DatabaseName = value;
                     OnPropertyChanged("DatabaseName");
@@ -1940,7 +1940,7 @@ public int Direction
             }
             set
             {
-                if ((int)mModel.DataTranseDirection != value)
+                if (mModel != null && (int)mModel.DataTranseDirection != value)
                 {
                     mModel.DataTranseDirection = (DataTransType)value;
                     IsChanged = true;
@@ -1973,7 +1973,7 @@ public string DeviceInfo
             }
             set
             {
-                if (mModel.DeviceInfo != value)
+                if (mModel!=null && mModel.DeviceInfo != value)
                 {
                     mModel.DeviceInfo = value;
                     IsChanged = true;