Refact ContentRegion

Author: vertigra

src/Modules/QuickCode.Modules.ContentRegion/ViewModels/ContentRegionViewModel.cs

@@ -4,8 +4,6 @@
 using QuickCode.Core.Mvvm;
 using QuickCode.Services.Interfaces;
 using System;
-using System.Net.Sockets;
-using System.Threading.Tasks;
 using System.Windows;
 using System.Windows.Threading;
 
@@ -76,7 +74,7 @@ private void RaiseDataReceivedEvent(object sender, string data)
         {
             Application.Current?.Dispatcher?.BeginInvoke(DispatcherPriority.Background, new Action(() =>
             {
-                if(ExecutionResult != null && !mIsExecutionStop)
+               if(!mIsExecutionStop && IsConnected)              
                     ExecutionResult = ExecutionResult + $"{data}\n";
             }));
         }
@@ -103,7 +101,7 @@ public string SourceCode
             }
         }
 
-        private string mExecutionResult = "";
+        private string mExecutionResult = string.Empty;
         public string ExecutionResult
         {
             get { return mExecutionResult; }
@@ -154,7 +152,7 @@ public override void Destroy()
 
         private async void Start()
         {
-            ExecutionResult = "";
+            ExecutionResult = string.Empty;
             string sourceCode = SourceCode;
 
             try

src/Modules/QuickCode.Modules.ContentRegion/Views/ContentRegionView.xaml

@@ -23,6 +23,7 @@
                 HorizontalAlignment="Left"
                 Content="Start" 
                 Command="{Binding StartCommand}"
+                IsEnabled="{Binding IsConnected, Converter={StaticResource Boolean2BooleanReConverter}}"
                 Style="{DynamicResource ButtonDefault.Small}"/>
 
             <CheckBox Content="Enable Debug"