Differences

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--- swdev:dotnet:adorner_layer [2011/01/10 12:44]
smayr
+++ swdev:dotnet:adorner_layer [2011/01/10 12:47] (current)
smayr [Loading Adorner]
@@ Line 155: / Line 155: @@
 Get Adorner Layer of a control, then add adorner:
 <code csharp>
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Windows;
+using System.Windows.Controls;
+using System.Windows.Data;
+using System.Windows.Documents;
+using System.Windows.Input;
+using System.Windows.Media;
+using System.Windows.Media.Imaging;
+using System.Windows.Shapes;
+namespace LoadingAdorner
+{
+    /// <summary>
+    /// Interaction logic for DemoPage.xaml
+    /// </summary>
+    public partial class DemoPage : Window
+    {
+        DemoPageController controller = new DemoPageController();
+        public DemoPage()
+        {
+            DataContext = controller.Data;
+            InitializeComponent();
+            AttachLoadingAdorner();
+        }
+        private void AttachLoadingAdorner()
+        {
+            // Create "Loading" adorner
+            LoadingAdorner loading = new LoadingAdorner(mainPane);
+            loading.FontSize = 15;
+            loading.OverlayedText = "loading...";
+            loading.Typeface = new Typeface(FontFamily, FontStyles.Italic,
+                FontWeights.Bold, FontStretch);
+            Binding bind = new Binding("SearchInProgress");
+            bind.Source = controller;
+            bind.Converter = new VisibilityConverter();
+            loading.SetBinding(LoadingAdorner.VisibilityProperty, bind);
+            // Get mainPane's AdornerLayer and add new "Loading" adorner
+            AdornerLayer.GetAdornerLayer(mainPane).Add(loading);
+        }
+    }
+    /// <summary>
+    /// Converter that converts a bool to a Visibility status
+    /// </summary>
+    public class VisibilityConverter : IValueConverter
+    {
+        #region IValueConverter Members
+        public object Convert(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
+        {
+            return (bool)value ? Visibility.Visible : Visibility.Collapsed;
+        }
+        public object ConvertBack(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
+        {
+            throw new NotImplementedException();
+        }
+        #endregion
+    }
+}
 </code>