diff --git a/CapMachine.Wpf/Models/Tag/QuickTag.cs b/CapMachine.Wpf/Models/Tag/QuickTag.cs
index 2ddce24..cf6424d 100644
--- a/CapMachine.Wpf/Models/Tag/QuickTag.cs
+++ b/CapMachine.Wpf/Models/Tag/QuickTag.cs
@@ -54,7 +54,7 @@ namespace CapMachine.Wpf.Models.Tag
             get { return _Value; }
             set
             {
-                if (!value.Equals(_Value) )
+                if (!value.Equals(_Value))
                 {
                     _Value = value;
                     RaisePropertyChanged();
@@ -72,6 +72,8 @@ namespace CapMachine.Wpf.Models.Tag
             get { return _OperateResultSource; }
             set
             {
+                if (value!.Content == null) return;
+
                 switch (ValueType)
                 {
                     case DataType.Short: