Damit die Daten auf der Oberfl\u00e4che immer aktuell sind, sollte man sie per Binding an die entsprechenden Properties kn\u00fcpfen.<\/p>\n
Das ist im einfachsten Fall einfach ein<\/p>\n
Text=\"{Binding Source=StaticRecource TMyClass},Path=MyProperty,Mode=TwoWay}\"<\/pre>\nWenn es allerdings um RadioButtons geht, muss man oft einen Enum-Wert in einen boolschen Ausdruck umsetzen. Daf\u00fcr gibt es zum Gl\u00fcck ebenfalls einen relativ einfache L\u00f6sung. Angenommen, der Code sieht etwa so aus:<\/p>\n
namespace MyNS\r\n{\r\n public enum MyEnum\r\n {\r\n OptionA,\r\n OptionB,\r\n OptionC\r\n }\r\n\r\n public class MyClass\r\n {\r\n public MyEnum MyOption\r\n {\r\n get { return (MyEnum)GetValue(MyOptionProperty); }\r\n set { SetValue(OperationModeProperty, value); }\r\n }\r\n\r\n \/\/ Using a DependencyProperty as the backing store for OperationMode. This enables animation, styling, binding, etc...\r\n public static readonly DependencyProperty MyOptionProperty =\r\n DependencyProperty.Register(\"MyOption\", typeof(MyEnum), typeof(MyClass), new PropertyMetadata(MyEnum.OptionB)); \r\n\r\n public MyClass()\r\n {\r\n }\r\n }\r\n}<\/pre>\nDann f\u00fcgt man folgenden Konverter hinzu:<\/p>\n
public class RadioButtonCheckedConverter : System.Windows.Data.IValueConverter\r\n{\r\n public object Convert(object value, Type targetType, object parameter,\r\n\t\t\tSystem.Globalization.CultureInfo culture)\r\n {\r\n return value.Equals(parameter);\r\n }\r\n\r\n public object ConvertBack(object value, Type targetType, object parameter,\r\n\t\t\tSystem.Globalization.CultureInfo culture)\r\n {\r\n return value.Equals(true) ? parameter : System.Windows.Data.Binding.DoNothing;\r\n }\r\n}<\/pre>\nNun kann man den Konverter in dem Xaml bekannt machen<\/p>\n
<Window ...\r\n xmlns:src=\"clr-namespace:MyNS\"\r\n >\r\n<Window.Resources>\r\n ...\r\n <src:RadioButtonCheckedConverter x:Key=\"RadioButtonCheckedConverter\" \/>\r\n <src:MyClass x:Key=\"TMyClass\" \/>\r\n<\/Window.Resources><\/pre>\nund dann f\u00fcr den RadioButton verwenden:<\/p>\n
<RadioButton GroupName=\"MyGroup\" \r\n Content=\"Option A\" \r\n IsChecked=\"{Binding Source={StaticResource TMyClass},Path=MyOption,Mode=TwoWay,Converter={StaticResource RadioButtonCheckedConverter}, ConverterParameter={x:Static t:MyEnum.OptionA}}\"\/><\/pre>\n <\/p>\n
Vollst\u00e4ndiges Beispiel zur obigen Klasse:<\/p>\n
<Window x:Class=\"MyNS.MyClass\"\r\n xmlns=\"http:\/\/schemas.microsoft.com\/winfx\/2006\/xaml\/presentation\"\r\n xmlns:x=\"http:\/\/schemas.microsoft.com\/winfx\/2006\/xaml\"\r\n\txmlns:src=\"clr-namespace:LVRepair\"\r\n Title=\"MyTitle\">\r\n\t<Window.Resources>\r\n\t\t<src:MyClassr x:Key=\"TMyClass\"\/>\r\n\t\t<src:RadioButtonCheckedConverter x:Key=\"RadioButtonCheckedConverter\" \/>\r\n\t<\/Window.Resources>\r\n\t<Grid>\r\n\t\t<Grid.RowDefinitions>\r\n\t\t\t<RowDefinition Height=\"*\"\/>\r\n\t\t\t<RowDefinition Height=\"*\"\/>\r\n\t\t\t<RowDefinition Height=\"*\"\/>\r\n\t\t<\/Grid.RowDefinitions>\r\n\t\t<RadioButton GroupName=\"Option\" \r\n\t\t\t Content=\"Option A\" \r\n\t\t\t IsChecked=\"{Binding Source={StaticResource TMyClass},Path=MyOption,Mode=TwoWay,Converter={StaticResource RadioButtonCheckedConverter}, ConverterParameter={x:Static src:MyEnum.OptionA}}\"\/>\r\n\t\t<RadioButton GroupName=\"Option\" \r\n\t\t\t Content=\"Option B\" \r\n\t\t\t IsChecked=\"{Binding Source={StaticResource TMyClass},Path=MyOption,Mode=TwoWay,Converter={StaticResource RadioButtonCheckedConverter}, ConverterParameter={x:Static src:MyEnum.OptionB}}\"\/>\r\n\t\t<RadioButton GroupName=\"Option\" \r\n\t\t\t Content=\"Option C\" \r\n\t\t\t IsChecked=\"{Binding Source={StaticResource TMyClass},Path=MyOption,Mode=TwoWay,Converter={StaticResource RadioButtonCheckedConverter}, ConverterParameter={x:Static src:MyEnum.OptionC}}\"\/>\r\n\t<\/Grid>\r\n<\/Windows><\/pre>\n <\/p>\n","protected":false},"excerpt":{"rendered":"
Damit die Daten auf der Oberfl\u00e4che immer aktuell sind, sollte man sie per Binding an die entsprechenden Properties kn\u00fcpfen. Das ist im einfachsten Fall einfach ein Text=“{Binding Source=StaticRecource TMyClass},Path=MyProperty,Mode=TwoWay}“ Wenn es allerdings um RadioButtons geht, muss man oft einen Enum-Wert in einen boolschen Ausdruck umsetzen. Daf\u00fcr gibt es zum Gl\u00fcck ebenfalls einen relativ einfache L\u00f6sung.…<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[1,26],"tags":[],"class_list":["post-130","post","type-post","status-publish","format-standard","hentry","category-allgemein","category-wpf"],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"http:\/\/dtp-soft.de\/index.php?rest_route=\/wp\/v2\/posts\/130","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/dtp-soft.de\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/dtp-soft.de\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/dtp-soft.de\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/dtp-soft.de\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=130"}],"version-history":[{"count":8,"href":"http:\/\/dtp-soft.de\/index.php?rest_route=\/wp\/v2\/posts\/130\/revisions"}],"predecessor-version":[{"id":138,"href":"http:\/\/dtp-soft.de\/index.php?rest_route=\/wp\/v2\/posts\/130\/revisions\/138"}],"wp:attachment":[{"href":"http:\/\/dtp-soft.de\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=130"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/dtp-soft.de\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=130"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/dtp-soft.de\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=130"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}