/// <summary>
/// Convert passed in value into the specified type when property is registered.
/// </summary>
/// <returns>Converted object</returns>
private static T ConvertPropertyTo <T>(TestProperty property, CultureInfo culture, object value)
{
ValidateArg.NotNull(property, "property");
ValidateArg.NotNull(culture, "culture");
var lazyValue = value as LazyPropertyValue <T>;
if (value == null)
{
return(default(T));
}
else if (value is T)
{
return((T)value);
}
else if (lazyValue != null)
{
return(lazyValue.Value);
}
var valueType = property.GetValueType();
TypeConverter converter = TypeDescriptor.GetConverter(valueType);
if (converter == null)
{
throw new NotSupportedException(string.Format(CultureInfo.CurrentCulture, Resources.Resources.ConverterNotSupported, valueType.Name));
}
try
{
return((T)converter.ConvertTo(null, culture, value, typeof(T)));
}
catch (FormatException)
{
throw;
}
catch (Exception e)
{
// some type converters throw strange exceptions (eg: System.Exception by Int32Converter)
throw new FormatException(e.Message, e);
}
}
/// <summary>
/// Convert passed in value from TestProperty's specified value type.
/// </summary>
/// <returns>Converted object</returns>
private static object ConvertPropertyFrom <T>(TestProperty property, CultureInfo culture, object value)
{
ValidateArg.NotNull(property, "property");
ValidateArg.NotNull(culture, "culture");
var valueType = property.GetValueType();
// Do not try conversion if the object is already of the type we're trying to convert.
// Note that typeof(T) may be object in case the value is getting deserialized via the StoreKvpList, however
// the deserializer could have converted it already, hence the runtime type check.
if (valueType != null && (valueType.GetTypeInfo().IsAssignableFrom(typeof(T).GetTypeInfo()) || valueType.GetTypeInfo().IsAssignableFrom(value?.GetType().GetTypeInfo())))
{
return(value);
}
TypeConverter converter = TypeDescriptor.GetConverter(valueType);
if (converter == null)
{
throw new NotSupportedException(string.Format(CultureInfo.CurrentCulture, Resources.Resources.ConverterNotSupported, valueType.Name));
}
try
{
return(converter.ConvertFrom(null, culture, value));
}
catch (FormatException)
{
throw;
}
catch (Exception e)
{
// some type converters throw strange exceptions (eg: System.Exception by Int32Converter)
throw new FormatException(e.Message, e);
}
}
