-1
我嘗試將簡單string
並添加標記string
例如:WPF:得到無法強制轉換對象異常,當嘗試轉換
Value is: bla bla
到:Value is <Span Foreground="Red">bla bla</Span>
所以我想用MultiValueConverter
並添加簡單的轉換器(至今沒有任何實現):
public class StatusConverter : IMultiValueConverter
{
public object Convert(object[] values, Type targetType, object parameter, System.Globalization.CultureInfo culture)
{
throw new NotImplementedException();
}
public object[] ConvertBack(object value, Type[] targetTypes, object parameter, System.Globalization.CultureInfo culture)
{
throw new NotImplementedException();
}
}
Window.Resources:
<my:StatusConverter x:Key="StatusConverterToColor"/>
用法:
<TextBlock Text="{Binding Status, Converter={StaticResource StatusConverterToColor}}" />
但得到這個錯誤:
{"Unable to cast object of type 'MyApplication.classes.StatusConverter' to type 'System.Windows.Data.IValueConverter'."}
什麼,我做錯了什麼?
而與IValueConverter我將能夠改變我的字符串,並添加此標記? –
是的,只要在'Convert'方法中提供真正的實現,而不是拋出'NotImplementedException' – Eldar