Exemplo n.º 1
0
        /// <summary>
        /// Convert back the value to a boolean
        /// </summary>
        /// <remarks>If the <paramref name="value"/> parameter is a reference type, <see cref="TrueValue"/> must match its reference to return true.</remarks>
        /// <param name="value">The target data being passed to the source.</param>
        /// <param name="targetType">The type of the target property, as a type reference (System.Type for Microsoft .NET, a TypeName helper struct for Visual C++ component extensions (C++/CX)).</param>
        /// <param name="parameter">An optional parameter to be used to invert the converter logic.</param>
        /// <param name="language">The language of the conversion.</param>
        /// <returns>The value to be passed to the source object.</returns>
        public object ConvertBack(object value, Type targetType, object parameter, string language)
        {
            bool result = Equals(value, ConverterTools.Convert(TrueValue, value.GetType()));

            if (ConverterTools.TryParseBool(parameter))
            {
                result = !result;
            }

            return(result);
        }
Exemplo n.º 2
0
        /// <summary>
        /// Convert a boolean value to an other object.
        /// </summary>
        /// <param name="value">The source data being passed to the target.</param>
        /// <param name="targetType">The type of the target property, as a type reference.</param>
        /// <param name="parameter">An optional parameter to be used to invert the converter logic.</param>
        /// <param name="language">The language of the conversion.</param>
        /// <returns>The value to be passed to the target dependency property.</returns>
        public object Convert(object value, Type targetType, object parameter, string language)
        {
            bool boolValue = value is bool && (bool)value;

            // Negate if needed
            if (ConverterTools.TryParseBool(parameter))
            {
                boolValue = !boolValue;
            }

            return(ConverterTools.Convert(boolValue ? TrueValue : FalseValue, targetType));
        }