/// <summary>
/// Converts the given object to the type of this converter, using the specified context and culture information.
/// </summary>
/// <param name="context">An <see cref="T:System.ComponentModel.ITypeDescriptorContext"/> that provides a format context.</param>
/// <param name="culture">The <see cref="T:System.Globalization.CultureInfo"/> to use as the current culture.</param>
/// <param name="value">The <see cref="T:System.Object"/> to convert.</param>
/// <returns>
/// An <see cref="T:System.Object"/> that represents the converted value.
/// </returns>
/// <exception cref="T:System.NotSupportedException">
/// The conversion cannot be performed.
/// </exception>
public override object ConvertFrom(ITypeDescriptorContext context, CultureInfo culture, object value)
{
string valueAsString = value as string;
if (valueAsString != null && valueAsString.StartsWith("(", StringComparison.OrdinalIgnoreCase) && valueAsString.EndsWith(")", StringComparison.OrdinalIgnoreCase))
{
if (valueAsString.Equals(_emptyString, StringComparison.OrdinalIgnoreCase))
{
return(TargetType.GetConstructor(Type.EmptyTypes).Invoke(null));
}
return(TargetType.GetConstructors(BindingFlags.NonPublic | BindingFlags.Instance).Single().Invoke(new object[] {
valueAsString.Substring(1, valueAsString.Length - 2).Split(',').Select(
s => TypeConversion.FromString(TargetType.GetGenericArguments()[0], s))
}));
}
return(base.ConvertFrom(context, culture, value));
}
/// <summary>
/// Implements constructors for the proxy class.
/// </summary>
/// <param name="typeBuilder">
/// The <see cref="System.Type"/> builder to use.
/// </param>
protected virtual void ImplementConstructors(TypeBuilder typeBuilder)
{
ConstructorInfo[] constructors = TargetType.GetConstructors(
BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.Instance);
foreach (ConstructorInfo constructor in constructors)
{
if (constructor.IsPublic || constructor.IsFamily)
{
ConstructorBuilder cb = typeBuilder.DefineConstructor(
constructor.Attributes,
constructor.CallingConvention,
DefineConstructorParameters(constructor));
ILGenerator il = cb.GetILGenerator();
GenerateConstructor(cb, il, constructor);
il.Emit(OpCodes.Ret);
}
}
}
