CheckBox returns always false value

Question

Does anyone know why I'm getting always a false value when I update the form? I tried with (value="false") into the checkbox but still doesn't work. Any help is appreciated!

<form asp-controller="Weather" asp-action="Update" method="POST">
<tr>
<td>@city.City</td>
<td><input type="number" name="cityId" value="@city.Id" hidden/></td>
<td><input type="checkbox" asp-for="@city.OnHeader" /></td>
<td><input type="checkbox" asp-for="@city.OnProfile" /></td>
<td><a asp-controller="Weather" asp-action="Delete" asp-route-cityId="@city.Id"><i class="fas fa-trash-alt color"></i></a></td>
<td><button type="submit"><i class="fas fa-edit color"></i></button></td>
</tr>
</form>

 [HttpPost]
    public IActionResult Update(WeatherModel theWeather, int cityId)
    {
        _weatherService.Update(cityId, theWeather.OnHeader, theWeather.OnProfile);
        return RedirectToAction("Settings");
    }

Answer 1

in the form the model is named "city" but on the action "theWeather". try:

     [HttpPost]
     public IActionResult Update(WeatherModel city, int cityId)
     {
         _weatherService.Update(cityId, city.OnHeader, city.OnProfile);
         return RedirectToAction("Settings");
     }

Answer 2

Hi @Maryan ,
Yes,the first way you could to change the model name in the update method. Now, there are the second way that you could add bind prefix in the method. Just like this:

public IActionResult Update([Bind(Prefix="city")]WeatherModel theWeather, int cityId)  

When you used asp-for, it will generate id and name. The name is city.property. And you could bind the name.

Best regards,
Yijing Sun

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