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DueAt property. Then, use that date instead of always making
new tasks that are due in 3 days.
68
Complete items with a checkbox
Complete items with a checkbox
Adding items to your to-do list is great, but eventually you'll need to get
things done, too. In the Views/Todo/Index.cshtml view, a checkbox is
rendered for each to-do item:
<input type="checkbox" class="done-checkbox">
Clicking the checkbox doesn't do anything (yet). Just like the last chapter,
you'll add this behavior using forms and actions. In this case, you'll also
need a tiny bit of JavaScript code.
Add form elements to the view
First, update the view and wrap each checkbox with a <form> element.
Then, add a hidden element containing the item's ID:
Views/Todo/Index.cshtml
<td>
<form asp-action="MarkDone" method="POST">
<input type="checkbox" class="done-checkbox">
<input type="hidden" name="id" value="@item.Id">
</form>
</td>
When the foreach loop runs in the view and prints a row for each to-do
item, a copy of this form will exist in each row. The hidden input
containing the to-do item's ID makes it possible for your controller code
to tell which box was checked. (Without it, you'd be able to tell that some
box was checked, but not which one.)
69
Complete items with a checkbox
If you run your application right now, the checkboxes still won't do
anything, because there's no submit button to tell the browser to create
a POST request with the form's data. You could add a submit button
under each checkbox, but that would be a silly user experience. Ideally,
clicking the checkbox should automatically submit the form. You can
achieve that by adding some JavaScript.
Add JavaScript code
Find the site.js file in the wwwroot/js directory and add this code:
wwwroot/js/site.js
$(document).ready(function() {
// Wire up all of the checkboxes to run markCompleted()
$('.done-checkbox').on('click', function(e) {
markCompleted(e.target);
});
});
function markCompleted(checkbox) {
checkbox.disabled = true;
var row = checkbox.closest('tr');
$(row).addClass('done');
var form = checkbox.closest('form');
form.submit();