Vfrdtyky

I'm using asp.net core 2.1 and I have a simple view with form like:

@model Security.WebUi.Pages.AssignClaimToUserModel



<form method="post">

    <div>

        <label>User:  </label>

        <select asp-for="UserId" asp-items="@Model.UserList">

            <option>Please select one</option>

        </select>

    </div>

    <div>

        <label>Role?</label>

        <input type="checkbox" name="IsRole" id="isRole" />

    </div>

    <div>

        <label>Claim Type</label>

        <input type="text" name="ClaimType" id="claimType" />

    </div>

    <div>

        <label>Claim Value</label>

        <input type="text" name="ClaimValue" />

    </div>

    <button type="submit">Submit</button>

</form>

As you can see I have a checkbox with IsRole property

So in my model I have a boolean:

 public class ClaimToUserdModel

    {

        public string ClaimType { get; set; }

        public string ClaimValue { get; set; }

        public Guid UserId { get; set; }

        public bool IsRole { get; set; }

    }

then in method I call as:

public async Task<IActionResult> OnPost(ClaimToUserdModel model)

            {

              ....

            }

But it always throw false, it does not care about checked or not. What am I doing wrong?

I got the same issue, I fixed it by writing html checkbox tag, giving it the name same as property name, and value = true, if the checkbox is not checked no need to worry as it won't be submitted anyway, in your case this will be it

<input type="checkbox" name="Remember" value="true" checked="@Model.YourmodelPropertyname"/>

also you set checkbox checked property value using jquery.

You can use try :

<input type="checkbox" name="IsRole" id="isRole" value="true" />

It seems you are using ASP.NET Core Razor Page ,you can also refer to below sample :

@page

@model razorpages.Pages.AssignClaimToUserModel

@{

    ViewData["Title"] = "AssignClaimToUser";

}



<form method="post">



<div>

    <label>Role?</label>      

    <input asp-for="ClaimToUserdModel.IsRole" name="IsRole">

</div>



<button type="submit">Submit</button>

Code behind :

public class AssignClaimToUserModel : PageModel

{

    public ClaimToUserdModel ClaimToUserdModel;

    public void OnGet()

    {



    }



    public async Task<IActionResult> OnPost(ClaimToUserdModel model)

    {

        return null;

    }

}



public class ClaimToUserdModel

{

    public string ClaimType { get; set; }

    public string ClaimValue { get; set; }

    public Guid UserId { get; set; }

    public bool IsRole { get; set; }

}