expose IsEnded on DialogSession #125

Author: ButchersBoy

MaterialDesignThemes.Wpf/DialogHost.cs

@@ -208,7 +208,7 @@ private static void IsOpenPropertyChangedCallback(DependencyObject dependencyObj
             {
                 dialogHost._asyncShowWaitHandle.Set();
                 dialogHost._attachedDialogClosingEventHandler = null;
-                dialogHost._session.IsDisabled = true;
+                dialogHost._session.IsEnded = true;
                 dialogHost._session = null;
                 return;
             }
@@ -403,7 +403,7 @@ internal void Close(object parameter)
         {
             var dialogClosingEventArgs = new DialogClosingEventArgs(_session, parameter, DialogClosingEvent);
 
-            _session.IsDisabled = true;
+            _session.IsEnded = true;
 
             //multiple ways of calling back that the dialog is closing:
             // * routed event
@@ -418,7 +418,7 @@ internal void Close(object parameter)
             if (!dialogClosingEventArgs.IsCancelled)
                 SetCurrentValue(IsOpenProperty, false);
             else
-                _session.IsDisabled = false;
+                _session.IsEnded = false;
 
             _closeDialogExecutionParameter = parameter;
         }

MaterialDesignThemes.Wpf/DialogSession.cs

@@ -7,8 +7,7 @@ namespace MaterialDesignThemes.Wpf
     /// </summary>
     public class DialogSession
     {
-        private readonly DialogHost _owner;
-        internal bool IsDisabled;
+        private readonly DialogHost _owner;    
 
         internal DialogSession(DialogHost owner)
         {
@@ -17,6 +16,14 @@ internal DialogSession(DialogHost owner)
             _owner = owner;
         }
 
+        /// <summary>
+        /// Indicates if the dialog session has ended.  Once ended no further method calls will be permitted.
+        /// </summary>
+        /// <remarks>
+        /// Client code cannot set this directly, this is internally managed.  To end the dicalog session use <see cref="Close()"/>.
+        /// </remarks>
+        public bool IsEnded { get; internal set; }
+
         /// <summary>
         /// Gets the <see cref="DialogHost.DialogContent"/> which is currently displayed, so this could be a view model or a UI element.
         /// </summary>
@@ -40,7 +47,7 @@ public void UpdateContent(object content)
         /// <exception cref="InvalidOperationException">Thrown if the dialog session has ended, or a close operation is currently in progress.</exception>
         public void Close()
         {
-            if (IsDisabled) throw new InvalidOperationException("Dialog session has ended.");
+            if (IsEnded) throw new InvalidOperationException("Dialog session has ended.");
 
             _owner.Close(null);
         }
@@ -52,7 +59,7 @@ public void Close()
         /// <exception cref="InvalidOperationException">Thrown if the dialog session has ended, or a close operation is currently in progress.</exception>
         public void Close(object parameter)
         {
-            if (IsDisabled) throw new InvalidOperationException("Dialog session has ended.");
+            if (IsEnded) throw new InvalidOperationException("Dialog session has ended.");
 
             _owner.Close(parameter);
         }