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null converters

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This commit is contained in:
Kyle Spearrin 2019-04-30 09:50:24 -04:00
parent 1f4bdb04ee
commit 865deaf401
2 changed files with 48 additions and 0 deletions
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24
src/App/Utilities/IsNotNullConverter.cs Normal file
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using System;
using Xamarin.Forms;
namespace Bit.App.Utilities
{
public class IsNotNullConverter : IValueConverter
{
public object Convert(object value, Type targetType, object parameter,
System.Globalization.CultureInfo culture)
{
if(targetType == typeof(bool))
{
return value != null;
}
throw new InvalidOperationException("The target must be a boolean.");
}
public object ConvertBack(object value, Type targetType, object parameter,
System.Globalization.CultureInfo culture)
{
throw new NotSupportedException();
}
}
}

24
src/App/Utilities/IsNullConverter.cs Normal file
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using System;
using Xamarin.Forms;
namespace Bit.App.Utilities
{
public class IsNullConverter : IValueConverter
{
public object Convert(object value, Type targetType, object parameter,
System.Globalization.CultureInfo culture)
{
if(targetType == typeof(bool))
{
return value == null;
}
throw new InvalidOperationException("The target must be a boolean.");
}
public object ConvertBack(object value, Type targetType, object parameter,
System.Globalization.CultureInfo culture)
{
throw new NotSupportedException();
}
}
}