EnvyUpdate/DashboardPage.xaml.cs

@@ -22,6 +22,7 @@ namespace EnvyUpdate
         private string gpuURL = null;
         private string skippedVer = null;
         private DateTime lastFileChanged = DateTime.MinValue;
+        private bool isDownloading = false;
 
         public DashboardPage()
         {
@@ -345,9 +346,17 @@ namespace EnvyUpdate
         }
 
         private void buttonDownload_Click(object sender, RoutedEventArgs e)
+        {
+            if (isDownloading)
+            {
+                Debug.LogToFile("WARN A download is already running.");
+                ShowSnackbar(Wpf.Ui.Common.ControlAppearance.Danger, Wpf.Ui.Common.SymbolRegular.ErrorCircle24, Properties.Resources.info_install_complete, Properties.Resources.info_install_complete_title);
+            }
+            else
             {
                 progressbarDownload.Visibility = Visibility.Visible;
                 buttonDownload.IsEnabled = false;
+                isDownloading = true;
 
                 if (File.Exists(Path.Combine(GlobalVars.saveDirectory, onlineDriv + "-nvidia-installer.exe.downloading")))
                 {
@@ -366,6 +375,7 @@ namespace EnvyUpdate
                 thread.Start();
                 Debug.LogToFile("INFO Started installer download.");
             }
+        }
 
         void client_DownloadProgressChanged(object sender, DownloadProgressChangedEventArgs e)
         {
@@ -382,6 +392,7 @@ namespace EnvyUpdate
             Application.Current.Dispatcher.Invoke(new Action(() => {
                 buttonDownload.IsEnabled = true;
                 progressbarDownload.Visibility = Visibility.Collapsed;
+                isDownloading = false;
             }));
             if (e.Error == null)
             {

EnvyUpdate/Properties/Resources.Designer.cs

@@ -105,6 +105,15 @@ namespace EnvyUpdate.Properties {
             }
         }
         
+        /// <summary>
+        ///   Looks up a localized string similar to A download process is already running!.
+        /// </summary>
+        public static string info_download_running {
+            get {
+                return ResourceManager.GetString("info_download_running", resourceCulture);
+            }
+        }
+        
         /// <summary>
         ///   Looks up a localized string similar to Driver installer successfully downloaded..
         /// </summary>

EnvyUpdate/Properties/Resources.de.resx

@@ -132,6 +132,9 @@
   <data name="info_download_error_title" xml:space="preserve">
     <value>Fehler beim Herunterladen</value>
   </data>
+  <data name="info_download_running" xml:space="preserve">
+    <value>Ein Downloadvorgang läuft bereits!</value>
+  </data>
   <data name="info_download_success" xml:space="preserve">
     <value>Treiber-Installationsdatei erfolgreich heruntergeladen.</value>
   </data>

EnvyUpdate/Properties/Resources.resx

@@ -132,6 +132,9 @@
   <data name="info_download_error_title" xml:space="preserve">
     <value>Error while downloading</value>
   </data>
+  <data name="info_download_running" xml:space="preserve">
+    <value>A download process is already running!</value>
+  </data>
   <data name="info_download_success" xml:space="preserve">
     <value>Driver installer successfully downloaded.</value>
   </data>