Please can any one advise how to use conditional mapping in AutoMapper to map a value in the TARGET object from a SOURCE object based upon an existing TARGET property value?
So my source class is:
public class UserDetails
{
public String Nickname { get; set; }
}
My target class is:
public class ProfileViewModel
{
public Boolean NicknameIsVisible { get; set;
public String Nickname { get; set; }
}
I want to set the "Nickname" property value in the TARGET to match the "Nickname" property value in the SOURCE only if the target property "NicknameIsVisible" value is already set to TRUE, otherwise I want to set the TARGET "Nickname" property value to an empty string.
I was trying something like this (which wont compile )...
Mapper.CreateMap<UserDetails, ProfileViewModel>()
.ForMember(
destination => destination.Nickname,
option => option.
.MapFrom(
source => source.NicknameIsVisible ?
source.Nickname :
String.Empty)
);
but "NicknameIsVisible" is not a property of my SOURCE but of my TARGET.
BTW, My ProfileViewModel is bound to three entities using Owain Wragg's method (http://consultingblogs.emc.com/owainwragg/archive/2010/12/22/automapper-mapping-from-multiple-objects.aspx) and it is another entity that gives the value to the "NicknameIsVisible" property.
Please can anyone suggest the right syntax to use for this problem?
C programming language is a machine-independent programming language that is mainly used to create many types of applications and operating systems such as Windows, and other complicated programs such as the Oracle database, Git, Python interpreter, and games and is considered a programming foundation in the process of ...
C is a general-purpose language that most programmers learn before moving on to more complex languages. From Unix and Windows to Tic Tac Toe and Photoshop, several of the most commonly used applications today have been built on C. It is easy to learn because: A simple syntax with only 32 keywords.
In the real sense it has no meaning or full form. It was developed by Dennis Ritchie and Ken Thompson at AT&T bell Lab. First, they used to call it as B language then later they made some improvement into it and renamed it as C and its superscript as C++ which was invented by Dr. Stroustroupe.
C is more difficult to learn than JavaScript, but it's a valuable skill to have because most programming languages are actually implemented in C. This is because C is a “machine-level” language. So learning it will teach you how a computer works and will actually make learning new languages in the future easier.
Try this:
Mapper.CreateMap<UserDetails, ProfileViewModel>()
.ForMember(
destination => destination.Nickname,
option =>
{
option.Condition(rc =>
{
var profileViewModel = (ProfileViewModel)rc.InstanceCache.First().Value;
return profileViewModel.NicknameIsVisible;
});
option.MapFrom(source => source.Nickname);
}
);
If you love us? You can donate to us via Paypal or buy me a coffee so we can maintain and grow! Thank you!
Donate Us With