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Implement ValueConverterGroup ConvertBack function.

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This commit is contained in:
Adrien Allard 2015-08-22 14:54:30 +02:00
parent 132e254f25
commit 82be95fb43
1 changed files with 20 additions and 1 deletions
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21
Application/FileConverter/ValueConverters/Generic/ValueConverterGroup.cs
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@ -35,7 +35,26 @@ namespace FileConverter.ValueConverters.Generic
public object ConvertBack(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
{
throw new NotImplementedException();
string parameterString = parameter as string;
if (parameterString == null)
{
throw new ArgumentException("The parameter must be a string value.");
}
string[] parameters = parameterString.Split('|');
if (parameters.Length != this.Count)
{
throw new ArgumentException("The parameter format must be 'Converter1Parameters|Converter2Parameters|...'.");
}
object result = value;
for (int index = this.Count - 1; index >= 0; index++)
{
IValueConverter converter = this[index];
result = converter.ConvertBack(result, targetType, parameters[index], culture);
}
return result;
}
}
}