I'm using mvc .net core (.net 6.0) to create an app linked to a db and I have an issue : I scaffholded a controller and its views (create, edit...) but when I try to create an object to send to db with entity framework, the DateOnly typed fields won't work and put in this date for all dates I try to write : 292269055-12-03 (it seems to be the max value ?). I need to use DateOnly type for compatiblity reasons because the DB have date fields (I found this information here https://www.npgsql.org/doc/types/datetime.html and if I try to use datetime, it doesnt work).
There is my code : view :
<div class="form-group">
<label asp-for="BirthDay" class="control-label"></label>
<input asp-for="BirthDayUI" class="form-control" type="date"/>
<span asp-validation-for="BirthDay" class="text-danger"></span>
</div>
controller (autogenerated) :
[HttpPost]
[ValidateAntiForgeryToken]
public async Task<IActionResult> Create([Bind("Id,Name,FirstName,BirthDay,Email,MobilePhone,LandLinePhone,PostalCity,PostalCode,PostalAdress,Gender,MedicalCertificate,MedicalCertificateStart,MedicalCertificateEnd,ProfilePicture")] Member member)
{
if (ModelState.IsValid)
{
_context.Add(member);
await _context.SaveChangesAsync();
return RedirectToAction(nameof(Index));
}
return View(member);
}
and finally, the model where I try to fiddle this :
[Required]
public DateOnly BirthDay { get; set; }
[NotMapped]
public DateTime BirthDayUI
{
get => BirthDay.ToDateTime(new TimeOnly());
set => BirthDay = DateOnly.FromDateTime(value);
}
The getter works perfectly but not the setter and I don't know what I must change.
thank you for helping me
CodePudding user response:
I have no experience yet with .NET 6, but I did some research about this. https://devblogs.microsoft.com/dotnet/date-time-and-time-zone-enhancements-in-net-6/
And I found next line
DateOnly d3 = DateOnly.ParseExact("31 Dec 1980", "dd MMM yyyy", CultureInfo.InvariantCulture); // Custom format
Try to use this on your setter, like this:
set => BirthDay = DateOnly.ParseExact(value.ToShortDateString(), "dd MMM yyyy", CultureInfo.InvariantCulture);
Don't forget to specify the format and cultureinfo
Let me known if this works!
CodePudding user response:
I finally found a solution : I created a UI version of my member model which use DateTime properties and bind my member controller on it (instead of member type) and i use a little function to cast it in my original member type. I named it memberviewmodel (but im not sure the name is pertinent).
[HttpPost]
[ValidateAntiForgeryToken]
public async Task<IActionResult> Create([Bind("Id,Name,FirstName,BirthDay,Email,MobilePhone,LandLinePhone,PostalCity,PostalCode,PostalAdress,Gender,MedicalCertificate,MedicalCertificateStart,MedicalCertificateEnd,ProfilePicture")] **MemberViewmodel membervm**)
{
Member member = ModelViewmodelConverter.MemberViewmodelToMember(membervm);
if (ModelState.IsValid)
{
_context.Add(member);
await _context.SaveChangesAsync();
return RedirectToAction(nameof(Index));
}
return View(member);
}
the function :
public static Member MemberViewmodelToMember(MemberViewmodel vm)
{
Member result = new Member()
{
...
BirthDay = DateOnly.FromDateTime(vm.BirthDay),
...
}
return result;
}