maui-linux/Xamarin.Forms.Platform.WP8/CollapseWhenEmptyConverter.cs

28 строки
648 B
C#

using System;
using System.Globalization;
using System.Windows;
namespace Xamarin.Forms.Platform.WinPhone
{
public class CollapseWhenEmptyConverter : System.Windows.Data.IValueConverter
{
public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
{
var length = 0;
var s = value as string;
if (s != null)
length = s.Length;
if (value is int)
length = (int)value;
return length > 0 ? Visibility.Visible : Visibility.Collapsed;
}
public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)
{
throw new NotSupportedException();
}
}
}