Prüft ob der eingegebene String, via RegEx, eine eMailadresse ist und gibt einen Bruh oder null zurück. Diesen Brush habe ich dann dazu benutzt einen grünen Haken zu zeichnen
EmailValidationConverter:
1 2 3 4 5 6 7 8 9 10 11 12 13 | public class EmailValidationConverter : IValueConverter { #region IValueConverter Members public object Convert(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture) { return Regex.IsMatch(value.ToString(), @"\w+([-+.']\w+)*@\w+([-.]\w+)*\.\w{2,6}$") ? Brushes.Green : null; } public object ConvertBack(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture) { return value; } #endregion } |
Xaml:
1 2 3 | <Window.Resources> <Converters:EmailValidationConverter x:Key="ValidateEMail" /> </Window.Resources> |
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 | <StackPanel Height="30" Orientation="Horizontal"> <TextBox Width="100" Name="txtBoxValidateEMail" VerticalAlignment="Center" /> <Grid> <Path HorizontalAlignment="Left" Margin="0,13,0,0" VerticalAlignment="Top" Width="14.21" Height="14.496" Stretch="Fill" Stroke="{Binding Text, ElementName=txtBoxValidateEMail, Mode=OneWay, Converter={StaticResource ValidateEMail}}" StrokeThickness="2" Data="M190,201 L210,203" RenderTransformOrigin="0.5,0.5"> <Path.RenderTransform> <TransformGroup> <ScaleTransform ScaleX="1" ScaleY="1"/> <SkewTransform AngleX="0" AngleY="0"/> <RotateTransform Angle="10"/> <TranslateTransform X="0" Y="0"/> </TransformGroup> </Path.RenderTransform> </Path> <Path HorizontalAlignment="Left" Margin="9,-5,0,0" VerticalAlignment="Top" Width="14" Height="33" Stroke="{Binding Text, ElementName=txtBoxValidateEMail, Mode=OneWay, Converter={StaticResource ValidateEMail}}" Stretch="Fill" StrokeThickness="2" Data="M190,201 L222,169" RenderTransformOrigin="0.5,0.5"> <Path.RenderTransform> <TransformGroup> <ScaleTransform ScaleX="1" ScaleY="1"/> <SkewTransform AngleX="0" AngleY="0"/> <RotateTransform Angle="-5"/> <TranslateTransform X="0" Y="0"/> </TransformGroup> </Path.RenderTransform> </Path> </Grid> </StackPanel> |
