I have a model.
it looks like this
public class AddEditNotificationViewModel : BaseViewModel
{
public TimeSpan TimeOfDayToRun { get; set; }
public string[] DaysRunning { get; set; }
public string Id { get; set; }
public string CampaignId { get; set; }
public int ForHowManyWeeks { get; set; }
public DateTimeOffset StartDate { get; set; }
public bool RunForever { get; set; }
public string TimeZone { get; set; }
}
I have this #Html.ValidationSummary( false ) in my view.
It shows erros for 3 properties, but I have no Required attribute on them.
Seems spooky ?
The value types (like bool and int) are considered as Required by default, unless you use a Nullable<T> type.
In your model, TimeOfDayToRun, ForHowManyWeeks and RunForever are non-nullable value types. If you replace the type of TimeOfDayToRun with Nullable<TimeSpan> or TimeSpan?, you're telling MVC binder to allow null values, and there won't be any validation errors.
Try the following model:
public class AddEditNotificationViewModel : BaseViewModel
{
public TimeSpan? TimeOfDayToRun { get; set; }
public string[] DaysRunning { get; set; }
public string Id { get; set; }
public string CampaignId { get; set; }
public int? ForHowManyWeeks { get; set; }
public DateTimeOffset StartDate { get; set; }
public bool? RunForever { get; set; }
public string TimeZone { get; set; }
}
Related
public class BClass
{
public class RClass
{
public string stjCd { get; set; }
public string lgnm { get; set; }
public string stj { get; set; }
public string dty { get; set; }
public List<object> adadr { get; set; }
public string cxdt { get; set; }
public string gstin { get; set; }
public List<string> nba { get; set; }
public string lstupdt { get; set; }
public string rgdt { get; set; }
public string ctb { get; set; }
public Pradr pradr { get; set; }
public string tradeNam { get; set; }
public string sts { get; set; }
public string ctjCd { get; set; }
public string ctj { get; set; }
}
public class AClass
{
public string id { get; set; }
public string consent { get; set; }
public string consent_text { get; set; }
public int env { get; set; }
public string response_code { get; set; }
public string response_msg { get; set; }
public int transaction_status { get; set; }
public string request_timestamp { get; set; }
public string response_timestamp { get; set; }
public RClass result { get; set; }
}
}
//COntroller
BClass.AClass btr = new BClass.AClass();
var lst = JsonConvert.DeserializeObject<BClass.AClass>(strresult);
btr.response_code = lst.response_code;
btr.response_msg = lst.response_msg;
btr.result.lgnm = lst.result.lgnm;
The property btr.result.lgnm = lst.result.lgnm; Gives null value error object reference not set to instance of an object. but the lst variable has a value in the response received.Please provide suggesion
You can solve this by adding one line into your code.
btr.result = new BClass.RClass(); //This one. You need to initialize instance before assigning anything to it.
btr.result.lgnm = lst.result.lgnm;
or else, you can also create default constructor for class A.
public AClass()
{
result = new RClass();
}
I would suggest you to please have a look at below web resources for naming conventions widely used for c# language.
Properties naming conventions: https://learn.microsoft.com/en-us/dotnet/standard/design-guidelines/names-of-type-members
class naming conventions: https://learn.microsoft.com/en-us/dotnet/standard/design-guidelines/names-of-classes-structs-and-interfaces
Assigning this way does not give null reference exception
RClass rclass=new RClass();
rclass.lgnm=lst.result.lgnm
I wanted to eager load a collection but it does not returns any data
I have tried nothing
//here is my controller
var accountGroup = await db.AccountGroups.Include(a=>a.AccountGroupTypes)
.Include(a=>a.AccountPrimaryGroups).ToListAsync();
//here is my model
public int? Id { get; set; }
public string Name { get; set; }
public int AccountGroupTypeId { get; set; }
public ICollection<AccountGroupType> AccountGroupTypes { get; set; }
public int AccountPrimaryGroupId { get; set; }
public ICollection<AccountPrimaryGroup> AccountPrimaryGroups { get; set; }
public DateTime CreationDateUtcNow{ get; set; }
It returns AccountGroupData but It does not return AccountGroupTypes and AccountPrimaryGroup data
Mark your AccountGroupTypes and AccountPrimaryGroups as virtual properties and be sure that you have a parameterless constructor which is initializing those properties.
public int? Id { get; set; }
public string Name { get; set; }
public int AccountGroupTypeId { get; set; }
public vitual ICollection<AccountGroupType> AccountGroupTypes { get; set; }
public int AccountPrimaryGroupId { get; set; }
public virtual ICollection<AccountPrimaryGroup> AccountPrimaryGroups { get; set; }
public DateTime CreationDateUtcNow{ get; set; }
public AccountGroup()
{
this.AccountGroupTypes = new HashSet<AccountGroupType>();
this.AccountPrimaryGroups = new HashSet<AccountPrimaryGroups>();
}
I am using ValueInjecter to map domain classes to my view models. My domain classes are complex. To borrow an example from this question:
public class Person
{
public int Id { get; set; }
public string FirstName { get; set; }
public string LastName { get; set; }
public Address Address { get; set; }
}
public class Address
{
public int Id { get; set; }
public string City { get; set; }
public string State { get; set; }
public string Zip { get; set; }
}
// VIEW MODEL
public class PersonViewModel
{
public string FirstName { get; set; }
public string LastName { get; set; }
public int PersonId { get; set; }
public int AddressId { get; set; }
public string City { get; set; }
public string State { get; set; }
public string Zip { get; set; }
}
I have looked at FlatLoopInjection, but it expects the view model classes to be prefixed with nested domain model type like so:
public class PersonViewModel
{
public string FirstName { get; set; }
public string LastName { get; set; }
public int Id { get; set; }
public int AddressId { get; set; }
public string AddressCity { get; set; }
public string AddressState { get; set; }
public string AddressZip { get; set; }
}
The OP in the linked question altered his view models to match the convention expected by FlatLoopInjection. I don't want to do that.
How can I map my domain model to the original unprefixed view model? I suspect that I need to override FlatLoopInjection to remove the prefix, but I am not sure where to do this. I have looked at the source for FlatLoopInjection but I am unsure if I need to alter the Match method or the SetValue method.
you don't need flattening, add the map first:
Mapper.AddMap<Person, PersonViewModel>(src =>
{
var res = new PersonViewModel();
res.InjectFrom(src); // maps properties with same name and type
res.InjectFrom(src.Address);
return res;
});
and after that you can call:
var vm = Mapper.Map<PersonViewModel>(person);
I have asked question in a different post, but seems that was not the right question, so going to reword here:
I have three classes:
public class StateLog : BaseModel
{
public Guid StateLogId { get; set; }
public Guid LookupMasterId { get; set; }
public Guid EntityId { get; set; }
public string Discriminator { get; set; }
public bool IsActive { get; set; }
public virtual LookupMaster State { get; set; }
}
Second class:
public class ApplicationState : StateLog
{
[Column("EntityId")]
public Guid ApplicationId { get; set; }
}
There is another Class DocumentStates which inherits from StateLog.
Application:
public class Application : BaseModel
{
public Guid ApplicationId { get; set; }
public Guid UserId { get; set; }
public virtual User User { get; set; }
[Required]
public Guid ApplicationTypeId { get; set; }
public bool? AuthorizedToWork { get; set; } = false;
public string Token { get; set; }
public string ApplicationTitle { get; set; }
public string WorkStartDate { get; set; }
public Nullable<DateTime> SignedAt { get; set; } = DateTime.Now;
public bool? Signed { get; set; }
public string Notes { get; set; }
public virtual ICollection<ApplicationSelfDeclaration> ApplicationSelfDeclarations { get; set; }
public virtual ICollection<ApplicationState> ApplicationStates { get; set; }
public virtual ICollection<StateLog> StateLogs { get; set; }
}
I am trying to save statelogs for both application and documents in same table and based on Discriminator, fetch data.
E.g.
_context.Applications.include(a => a.ApplicationState)
This is not not working. ApplicationState should Alias EntityId column as ApplicationId. But it is not working.
Any idea what my options are at this point?
Thanks in advance.
ASP .NET MVC4
Class #1:
public class F61BPROD
{
public int WPDOCO { get; set; }
public string WPDCTO { get; set; }
public string WPMCU { get; set; }
public string WPLOCN { get; set; }
public string WPDCT { get; set; }
public int WPTRDJ { get; set; }
public string WPKYPR { get; set; }
public string WPLITM { get; set; }
public decimal WPTRQT { get; set; }
public string WPKYFN { get; set; }
public string WPLOTN { get; set; }
public string WPLRP1 { get; set; }
public string WPLRP2 { get; set; }
public string WPLRP3 { get; set; }
public string WPLRP4 { get; set; }
public string WPLRP5 { get; set; }
public string WPLRP6 { get; set; }
public string WPLRP7 { get; set; }
public string WPLRP8 { get; set; }
public string WPLRP9 { get; set; }
public string WPLRP0 { get; set; }
public string WPFLAG { get; set; }
public string WPLOT1 { get; set; }
public string WPLOT2 { get; set; }
}
For one of the properties of Class #1 i need to fetch one of Class #2:
public class JDEItemBasic
{
public int itm { get; set; }
public string litm { get; set; }
public string dsc { get; set; }
public string dsce { get; set; }
public string ean14 { get; set; }
public string cc { get; set; }
public string uom1 { get; set; }
public string uom2 { get; set; }
public int uom1ea { get; set; }
public int bxuom1 { get; set; }
public int uom1gr { get; set; }
}
There is a DAL that gets the above classes. I need to combine these classes a new class that will have most of the properties of the above classes.
Should i create a third class and do the job in BLL?
or should i do it in UI using LINQ to Entities after i fetch them?
Should i create a third class and do the job in BLL?
or should i do it in UI using LINQ to Entities after i fetch them?
That would depend on where you need this class. If it is for displaying purposes then it should live in the UI. This class even has a name in this case: it's called a view model and is what your controller action could pass to the view after querying your DAL layer and projecting the various results to this view model.