init

DataPRO/Modules/DatabaseImporter/DatabaseImport/App/App.cs

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+using System.Windows;
+
+namespace DatabaseImport
+{
+    /// <summary>
+    /// Interaction logic for App.xaml
+    /// </summary>
+    public partial class App : Application
+    {
+
+        private static ISO13499FileDb _isoDb;
+        public ISO13499FileDb IsoDb
+        {
+            get
+            {
+                if (null != _isoDb) return _isoDb;
+                _isoDb = new ISO13499FileDb();
+                _isoDb.RefreshAllData();
+                return _isoDb;
+            }
+        }
+        // Delegate for SetAppBusy and SetAppAvailable
+        private delegate void SetAppBusyAvailableDelegate();
+
+        // WaitCursor for SetAppBusy and SetAppAvailable
+        private WaitCursor _wc;
+
+        private static readonly object WaitCursorLock = new object();
+        //        // Apply WaitCursor and disable application
+        //        // recommend use before a try statement
+        public void SetAppBusy()
+        {
+            //Can We access
+            if (!Dispatcher.CheckAccess())
+            {
+                Dispatcher.BeginInvoke(new SetAppBusyAvailableDelegate(SetAppBusy));
+                return;
+            }
+            if (null == MainWindow) return;
+            lock (WaitCursorLock)
+            {
+                if (null != _wc) { _wc.Dispose(); }
+                //Init WaitCursor
+                _wc = new WaitCursor();
+                //Enable App
+                MainWindow.IsEnabled = false;
+            }
+        }
+
+        // Apply normal cursor and enable application
+        // recommend use in a finally statement
+        public void SetAppAvailable()
+        {
+            //Can We access
+            if (!Dispatcher.CheckAccess())
+            {
+                Dispatcher.BeginInvoke(new SetAppBusyAvailableDelegate(SetAppAvailable));
+                return;
+            }
+            if (null == MainWindow) return;
+            lock (WaitCursorLock)
+            {
+                //Dispose WaitCursor
+                if (null != _wc) { _wc.Dispose(); _wc = null; }
+
+                //Enable App
+                MainWindow.IsEnabled = true;
+            }
+        }
+    }
+}