在WPF DataGrid中输入时将逗号替换为点

<DataGridTextColumn Header="Value" Binding="{Binding Value}" />

public class CommaToDotConverter : IValueConverter
{
    public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
    {
        // 将逗号替换为点
        if (value is string text)
        {
            return text.Replace(',', '.');
        }
        return value;
    }

    public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)
    {
        // 将点替换为逗号
        if (value is string text)
        {
            return text.Replace('.', ',');
        }
        return value;
    }
}

<DataGridTextColumn Header="Value" Binding="{Binding Value, Converter={StaticResource CommaToDotConverter}}" />

<Window.Resources>
    <local:CommaToDotConverter x:Key="CommaToDotConverter" />
</Window.Resources>