Myujth

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;