I am trying to pass some input from the "Create" view to my controller but the ModelState is returning error:
The Controller:
[Route("Create")]
[HttpPost]
[ValidateAntiForgeryToken]
public IActionResult Create([Bind("Name, Location, MaxCapacity")] Warehouse warehouse)
{
if (ModelState.IsValid)
{
_Db.Add(warehouse);
_Db.SaveChanges();
return RedirectToAction("Index");
}
return BadRequest();
}
The view:
@model InventoryManSys.Models.Warehouse
@{
ViewData["Title"] = "Create";
}
<h1>Create</h1>
<h4>Warehouse</h4>
<hr />
<div >
<div >
<form asp-action="Create">
<div asp-validation-summary="ModelOnly" ></div>
<div >
<label asp-for="Name" ></label>
<input asp-for="Name" />
<span asp-validation-for="Name" ></span>
</div>
<div >
<label asp-for="Location" ></label>
<input asp-for="Location" />
<span asp-validation-for="Location" ></span>
</div>
<div >
<label asp-for="MaxCapacity" ></label>
<input asp-for="MaxCapacity" />
<span asp-validation-for="MaxCapacity" ></span>
</div>
<div >
<input type="submit" value="Create" />
</div>
</form>
</div>
</div>
The model:
public class Warehouse
{
[Key]
public int Id { get; set; }
[Required]
[StringLength(30, ErrorMessage = "Name should have less than 30 characters")]
[DisplayName("Warehouse Name")]
public string Name { get; set; }
[Required]
public string Location { get; set; }
[Required]
public int MaxCapacity { get; set; }
//Navigation Property
public ICollection<Category> Categories { get; set; }
}
But when I do a "Console.WriteLine(warehouse.Name)" the input is being passed correctly. How to solve that? is the "bind[]"attribute a problem?
CodePudding user response:
Your form is missing the anti forgery token that your [ValidateAntiForgeryToken] attribute in the controller is attempting to check against.
You can try adding the anti forgery token line within your form:
@Html.AntiForgeryToken()
CodePudding user response:
ModelState is invalid but form content is acessible
You may add the client validation js library jquery.validate.js
and jquery.validate.unobtrusive.js
.
Check this document:
If Name
/Location
/MaxCapacity
are received value, it should work fine, suggest you can check the ModelState
or just return BadRequest(ModelState);
to see what's the detailed error.
But if you use .NET 6, as this document said:
Beginning with .NET 6, new projects include the
<Nullable>enable</Nullable>
element in the project file. Once the feature is turned on, existing reference variable declarations become non-nullable reference types.
So that the non-nullable property must be required in ASP.NET 6, otherwise the ModelState will be invalid.
One way is to remove <Nullable>enable</Nullable>
from your project file.
Another way is to add ?
like below:
public class Warehouse
{
[Key]
public int? Id { get; set; }
[Required]
[StringLength(30, ErrorMessage = "Name should have less than 30 characters")]
[DisplayName("Warehouse Name")]
public string Name { get; set; }
[Required]
public string Location { get; set; }
[Required]
public int MaxCapacity { get; set; }
//Navigation Property
public ICollection<Category>? Categories { get; set; }
}