/// <summary>
/// Looks up the <see cref="IConvertFrom"/> for the target type.
/// </summary>
/// <param name="target">The type to lookup the converter for.</param>
/// <returns>The converter for the specified type.</returns>
public static IConvertFrom GetTypeConverter(Type target)
{
IConvertFrom converter = ConverterRegistry.GetConverter(target);
if (converter == null)
{
throw new InvalidOperationException("No type converter defined for [" + target + "]");
}
return(converter);
}
/// <summary>
///
/// </summary>
/// <param name="deviceInfo"></param>
/// <returns></returns>
public bool LoadValue(DeviceInfo deviceInfo)
{
deviceInfo.ThrowIfNull("deviceInfo");
TPropertyType propertyType;
Api.Buffer buffer;
if (!LoadValue(deviceInfo, out propertyType, out buffer))
{
return(false);
}
using (buffer)
{
// If there's no buffer to work with, set a null value.
if (buffer == null || buffer.Length == 0)
{
Value = null;
}
else
{
// Get the appropriate value converter.
var valueConverter = ConverterRegistry.GetConverter(propertyType);
if (valueConverter == null)
{
// When there's no converter, just copy the data as a byte array.
Value = buffer.GetBytes();
}
else
{
// When there is a converter, use it.
Value = valueConverter.BufferToObject(buffer);
}
}
// The type is deliberately set after the value. This allows for errors trying to convert the loaded
// value, as the existing value and type will be left untouched.
ValueType = propertyType;
return(true);
}
}