Getting 0 from checkbox value in asp.net MVC

Question

I am trying to get a value( 1 or 0) from a checkbox using FormCollection . But even I check it I get 0 in debugger mode.

Here, is the checkbox.

<label class="form-check-label">
     <input id="UbankInsurance" name="UbankInsurance" value="1" type="checkbox"/> Yes
</label>

and here is the method to collect it.

[HttpPost]
public ActionResult Edit(FormCollection fc)
{
   int ublInsurance = Convert.ToInt32(fc["UbankInsurance"]);
}

and further im going to pass this value to a database column that has a bit Data type

Answer 1

Your code looks fairly correct, so I suppose you have not passed your checkbox in a form to begin with. Furthermore you need to check that value for null . If a checkbox is checked, the value "1" is submitted as a string. If it is unchecked, the value null will be returned.

Here is a working example:

<h3>Submitted value: @TempData["val"]</h3>

@using (Html.BeginForm("GetCheckbox", "Home", FormMethod.Post))
{
    <label class="form-check-label">
        <input id="UbankInsurance" name="UbankInsurance" value="1" type="checkbox" />
        Yes
    </label>

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

Controller Method:

[HttpPost]
public ActionResult GetCheckbox(FormCollection form)
{
    var checkboxChecked = form["UbankInsurance"]; //get the checkbox value
    if(checkboxChecked == null) //if it is unchecked it will be null
    {
        checkboxChecked = "0"; //set it to a parsable value instead
    }
    //convert 0 or 1 to int and return it to view
    TempData["val"] = Convert.ToInt32(checkboxChecked); 
    return View("Index");
}

Please not, that I have used the HomeController in a demo application, so make sure you fill in your actual values in terms of action methods and controller names.