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comparison MetroWpf/MetroWpf.Xaml/Converters/BooleanToVisibilityConverter.cs @ 18:8049f7c58c2b

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Login form 75% there
author stevenh7776 stevenhollidge@hotmail.com
date Wed, 14 Mar 2012 18:06:36 +0700
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17:7721a1270363 18:8049f7c58c2b
1 // http://drwpf.com/blog/2009/03/17/tips-and-tricks-making-value-converters-more-accessible-in-markup/
2 // to use in xaml: <TextBlock Text="{Binding SomePath, Converter={src:BoolVisibilityConverter}}" />
3
4 using System;
5 using System.Windows;
6 using System.Windows.Data;
7 using System.Windows.Markup;
8 using System.Globalization;
9
10 namespace MetroWpf.Xaml.Converters
11 {
12 public class BooleanToVisibilityConverter : MarkupExtension, IValueConverter
13 {
14 private static BooleanToVisibilityConverter booleanToVisibilityConverter = null;
15
16 public override object ProvideValue(IServiceProvider serviceProvider)
17 {
18 if (null == booleanToVisibilityConverter)
19 booleanToVisibilityConverter = new BooleanToVisibilityConverter();
20
21 return booleanToVisibilityConverter;
22 }
23
24 public bool IsReversed { get; set; }
25 public bool UseHidden { get; set; }
26
27 #region IValueConverter Members
28
29 public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
30 {
31 var val = System.Convert.ToBoolean(value, CultureInfo.InvariantCulture);
32 if (this.IsReversed)
33 {
34 val = !val;
35 }
36 if (val)
37 {
38 return Visibility.Visible;
39 }
40 return this.UseHidden ? Visibility.Hidden : Visibility.Collapsed;
41 }
42 public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)
43 {
44 throw new NotImplementedException();
45 }
46
47 #endregion
48 }
49 }