service provider now uses a case-insensitive dictionary key, eliminating KeyNotFoundException errors

git-svn-id: svn://svn.code.sf.net/p/processhacker/code@574 21ef857c-d57f-4fe0-8362-d861dc6d29cd

trunk/ProcessHacker/Components/ServiceProperties.cs

@@ -215,6 +215,23 @@ namespace ProcessHacker
                     {
                         textDescription.Text = "";
                     }
+
+                    try
+                    {
+                        using (ServiceController controller = new ServiceController(
+                            listServices.SelectedItems[0].Name))
+                        {
+                            if (controller.DependentServices.Length == 0)
+                                buttonDependents.Enabled = false;
+                            if (controller.ServicesDependedOn.Length == 0)
+                                buttonDependencies.Enabled = false;
+                        }
+                    }
+                    catch
+                    {
+                        buttonDependents.Enabled = false;
+                        buttonDependencies.Enabled = false;
+                    }
                 }
                 catch (Exception ex)
                 {

trunk/ProcessHacker/Providers/Provider.cs

@@ -126,8 +126,16 @@ namespace ProcessHacker
         /// Creates a new instance of the Provider class.
         /// </summary>
         public Provider()
+            : this(null)
+        { }
+
+        /// <summary>
+        /// Creates a new instance of the Provider class, specifying a 
+        /// custom equality comparer.
+        /// </summary>
+        public Provider(IEqualityComparer<TKey> comparer)
         {
-            _dictionary = new Dictionary<TKey, TValue>();
+            _dictionary = new Dictionary<TKey, TValue>(comparer);
 
             _thread = new Thread(new ThreadStart(Update));
             _thread.SetApartmentState(ApartmentState.STA);

trunk/ProcessHacker/Providers/ServiceProvider.cs

@@ -37,9 +37,9 @@ namespace ProcessHacker
     public class ServiceProvider : Provider<string, ServiceItem>
     {
         public ServiceProvider()
-            : base()
+            : base(StringComparer.InvariantCultureIgnoreCase) // Windows is case-insensitive with services
         {      
-            this.ProviderUpdate += new ProviderUpdateOnce(UpdateOnce);   
+            this.ProviderUpdate += new ProviderUpdateOnce(UpdateOnce);
         }
 
         public void UpdateServiceConfig(string name, Win32.QUERY_SERVICE_CONFIG config)