public static MemberAccessExpressionBuilderBase MemberAccess(Type elementType, Type memberType, string memberName)
{
memberType = memberType ?? typeof(object);
if (elementType.IsCompatibleWith(typeof(DataRow)))
{
return new DataRowFieldAccessExpressionBuilder(memberType, memberName);
}
if (elementType.IsCompatibleWith(typeof(ICustomTypeDescriptor)))
{
return new CustomTypeDescriptorPropertyAccessExpressionBuilder(elementType, memberType, memberName);
}
if (elementType.IsCompatibleWith(typeof(XmlNode)))
{
return new XmlNodeChildElementAccessExpressionBuilder(memberName);
}
if (elementType == typeof(object) || elementType.IsCompatibleWith(typeof(System.Dynamic.IDynamicMetaObjectProvider)))
{
return new DynamicPropertyAccessExpressionBuilder(elementType, memberName);
}
return new PropertyAccessExpressionBuilder(elementType, memberName);
}
private static MemberAccessExpressionBuilder MemberAccess(Type type, Type memberType, string memberName)
{
// memberType = memberType ?? typeof (object);
if (type == typeof(object) || type.IsCompatibleWith(typeof(IDynamicMetaObjectProvider)))
{
return new DynamicPropertyAccessExpressionBuilder(type, memberName);
}
return new PropertyAccessExpressionBuilder(type, memberName);
}
/// <exception cref="ArgumentException"><paramref name="elementType"/> did not implement <see cref="ICustomTypeDescriptor"/>.</exception>
public CustomTypeDescriptorPropertyAccessExpressionBuilder(Type elementType, Type memberType, string memberName)
: base(elementType, memberName)
{
if (!elementType.IsCompatibleWith(typeof(ICustomTypeDescriptor)))
{
throw new ArgumentException(
string.Format(CultureInfo.CurrentCulture, "ElementType: {0} did not implement {1}", elementType, typeof(ICustomTypeDescriptor)),
"elementType");
}
this.propertyType = GetPropertyType(memberType);
}
