Пример #1
0
        private bool ConvertersTryParse(string sourceValue, ConverterValueContext valueContext, Type targetType, out object result)
        {
            var converter = typeConverters.FirstOrDefault(typeConverter => typeConverter.GetType().Name.StartsWith(targetType.Name) && typeConverter.CanConvertFrom(typeof(string)));

            if (converter != null)
            {
                try
                {
                    result = converter.ConvertFrom(new SourceValueConverterTypeDescriptorContext(valueContext), CultureInfo.CurrentCulture, sourceValue);
                    return(true);
                }
                catch
                {
                }
            }

            result = null;
            return(false);
        }
Пример #2
0
        public object GetCompatibleValue(ConverterValueContext valueContext)
        {
            var targetType  = valueContext.TargetType;
            var sourceValue = valueContext.Value as string;

            if (sourceValue == null)
            {
                return(valueContext.Value);
            }


            Func <ConverterValueContext, object> converter;

            if (standardConverters.TryGetValue(targetType, out converter))
            {
                return(converter(valueContext));
            }

            object result;

            if (ConvertersTryParse(sourceValue, valueContext, targetType, out result))
            {
                return(result);
            }

            if (BuiltInConversionParser.TryParse(targetType, sourceValue, out result))
            {
                return(result);
            }

            var delegateParent = valueContext.BuildContext.AmbientRegistrator.Instances.FirstOrDefault();

            if (DelegateParser.TryParse(sourceValue, targetType, delegateParent, out result))
            {
                return(result);
            }

            return(valueContext.Value);
        }
Пример #3
0
        private object CreateUsingConversion(Type type, object o, BuildContext context)
        {
            var converterValueContext = new ConverterValueContext(type, o, objectBuilderContext, directory, context);

            return(objectBuilderContext.SourceValueConverter.GetCompatibleValue(converterValueContext));
        }
 public SourceValueConverterTypeDescriptorContext(ConverterValueContext valueContext)
 {
     this.valueContext = valueContext;
 }