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using System;
using System.Windows;
using System.Windows.Data;
namespace IssueVision.Common
{
/// <summary>
/// One way IValueConverter that lets you bind a property on a bindable object
/// that can be either null, empty string, or white spaces value to a dependency
/// property that should be set to Visibility.Collapsed in that case
/// </summary>
public sealed class NullVisibilityConverter : IValueConverter
{
public Object Convert(Object value, Type targetType, Object parameter, System.Globalization.CultureInfo culture)
{
return (string.IsNullOrWhiteSpace((string)value)) ? Visibility.Collapsed : Visibility.Visible;
}
public Object ConvertBack(Object value, Type targetType, Object parameter, System.Globalization.CultureInfo culture)
{
throw new NotSupportedException();
}
}
}
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Weidong has been an information system professional since 1990. He has a Master's degree in Computer Science, and is currently a MCSD .NET