fix null version code error from unity editor preview builds, add: browse Scripts folder parent, if missing scripts folder.

Author: unitycoder

UnityLauncherPro/MainWindow.xaml.cs

@@ -2739,7 +2739,7 @@ private void MenuRemoveProject_Click(object sender, RoutedEventArgs e)
 
             var proj = GetSelectedProject();
             if (proj == null) return;
-            
+
             if (GetProjects.RemoveRecentProject(proj.Path))
             {
                 RefreshRecentProjects();
@@ -3039,7 +3039,10 @@ public int Compare(Object a, Object b)
         private void btnExploreScriptsFolder_Click(object sender, RoutedEventArgs e)
         {
             // TODO later this script should be inside some unity project, for easier updating..
-            Tools.LaunchExplorer(Path.Combine(AppDomain.CurrentDomain.BaseDirectory, "Scripts"));
+            if (Tools.LaunchExplorer(Path.Combine(AppDomain.CurrentDomain.BaseDirectory, "Scripts")) == false)
+            {
+                Tools.LaunchExplorer(Path.Combine(AppDomain.CurrentDomain.BaseDirectory));
+            }
         }
 
         private void txtCustomInitFile_PreviewKeyDown(object sender, KeyEventArgs e)

UnityLauncherPro/NewProject.xaml.cs

@@ -44,16 +44,16 @@ public NewProject(string unityVersion, string suggestedName, string targetFolder
                 // get release type info (not done in mainwindow yet, to avoid doing extra stuff)
                 for (int i = 0, len = MainWindow.unityInstallationsSource.Length; i < len; i++)
                 {
-                    var vers = MainWindow.unityInstallationsSource[i].Version;
-                    if (Tools.IsLTS(vers))
+                    var ver = MainWindow.unityInstallationsSource[i].Version;
+                    if (Tools.IsLTS(ver))
                     {
                         MainWindow.unityInstallationsSource[i].ReleaseType = "LTS";
                     }
-                    else if (Tools.IsAlpha(vers))
+                    else if (Tools.IsAlpha(ver))
                     {
                         MainWindow.unityInstallationsSource[i].ReleaseType = "Alpha";
                     }
-                    else if (Tools.IsBeta(vers))
+                    else if (Tools.IsBeta(ver))
                     {
                         MainWindow.unityInstallationsSource[i].ReleaseType = "Beta";
                     }

UnityLauncherPro/Tools.cs

@@ -1772,18 +1772,21 @@ public static void SetBuildStatus(Color color)
         // https://unity3d.com/unity/alpha
         public static bool IsAlpha(string version)
         {
+            if (string.IsNullOrEmpty(version)) return false; 
             return version.IndexOf("a", 0, StringComparison.CurrentCultureIgnoreCase) > -1;
         }
 
         // https://unity3d.com/beta/
         public static bool IsBeta(string version)
         {
+            if (string.IsNullOrEmpty(version)) return false;
             return version.IndexOf("b", 0, StringComparison.CurrentCultureIgnoreCase) > -1;
         }
 
         // https://unity3d.com/unity/qa/lts-releases
         public static bool IsLTS(string versionRaw)
         {
+            if (string.IsNullOrEmpty(versionRaw)) return false;
             var version = versionRaw.Split('.');
             var versionInt = int.Parse(version[0]);
             var versionMinor = int.Parse(version[1]);