diff options
Diffstat (limited to 'Xamarin.Forms.Platform.WinRT/CollapseWhenEmptyConverter.cs')
| -rw-r--r-- | Xamarin.Forms.Platform.WinRT/CollapseWhenEmptyConverter.cs | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/Xamarin.Forms.Platform.WinRT/CollapseWhenEmptyConverter.cs b/Xamarin.Forms.Platform.WinRT/CollapseWhenEmptyConverter.cs new file mode 100644 index 00000000..311d315b --- /dev/null +++ b/Xamarin.Forms.Platform.WinRT/CollapseWhenEmptyConverter.cs @@ -0,0 +1,33 @@ +using System; +using Windows.UI.Xaml; + +#if WINDOWS_UWP + +namespace Xamarin.Forms.Platform.UWP +#else + +namespace Xamarin.Forms.Platform.WinRT +#endif +{ + public class CollapseWhenEmptyConverter : Windows.UI.Xaml.Data.IValueConverter + { + public object Convert(object value, Type targetType, object parameter, string language) + { + 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, string language) + { + throw new NotSupportedException(); + } + } +}
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