WPF 将字符串按固定位数间隔展示

使用转换器，将字符串值做处理：

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using System; using System.Collections.Generic; using System.Globalization; using System.Linq; using System.Text; using System.Windows; using System.Windows.Data;   namespace Controls.Converters {     public class StringSpaceConverter : IValueConverter     {         public object Convert(object value, Type targetType, object parameter, CultureInfo culture)         {             string str = string.Empty;             if(!string.IsNullOrWhiteSpace((string)value))             {                 str = (string)value;                 var a = System.Text.RegularExpressions.Regex.Replace(str, @"(\w{4})", "$1 ").Trim(' ');                 return a;             }             return str;         }           public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)         {             throw new NotImplementedException();         }     } }

　

页面上使用静态资源，引用此转换：

<convert:StringSpaceConverter x:Key="StringSpaceConverter" />

<TextBlock FontSize="48" HorizontalAlignment="Left"  Foreground="{DynamicResource CardFontForBrush}" Text="{Binding DataModel.vip_no,Converter={StaticResource StringSpaceConverter}}" />