Primary key always null onPost Edit.

Title:

BI{code} ?

Today i have purchased MVC Core Controls, I am implementing code in razor pages.Everything working fine except update functionality. When i check properties on OnPostEdit, Primary key always coming null.I have given my code implementation below. public IActionResult OnPostEdit(ModelModule input)// Here GCMID(Primary key) always null { if (ModelState.IsValid) { var Course = (from c in _DbContext.Module where c.Gccid == input.GCMID select c).FirstOrDefault(); Course.PercentofTotal = input.Perc; Course.ModuleName = input.ModuleName; Course.AttemptsAllowded = input.AllowdedAttempts; _DbContext.Update(Course); return new JsonResult(new { }); } return new JsonResult(ModelState.GetErrorsInline()); } Please let me know the solution.

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Baresha Shaik

asked at 05 Jun 2020

Answers

• BI{code} ?

  hard to say because I can't see the needed code, but it's likely a basic mvc binding problem, so if you expect `input.SomeProp` to have value, the html form that you're posting needs to have a input with `name="SomeProp"`, in our demos we don't add a hidden input for the Id in the `Create.cshtml` because the initial get request (that gets the create popup content) has `Id` parameter and `DinnerInput` also has `Id` property and they match by name so mvc binds it from there, in your case probably you need the hidden input, hard to say, I don't know what kind of crud you're using Popup/inline/separate page, and how that view looks (e.g. create.cshtml in our demos)

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  Omu

  answered at 05 Jun 2020

  • I replaced my primary key with int and it's working fine now.added "new Column { Bind = "Id", Hidden=true, Width = 70 }.Mod(o => o.InlineId())," to hide the column.Thanks.
    at 07 Jun 2020 Baresha Shaik

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