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The checked attribute is a boolean attribute. When present, it specifies that an <input> element should be pre-selected (checked) when the page loads. The checked attribute can be used with <input type="checkbox"> and <input type="radio"> . The checked attribute can also be set after the page load, with a JavaScript.

Rendering Checkboxes Checked By Default When rendering a page with a checkbox you want selected or checked by default you need to include the 'checked' attribute. There is no required value for the checked attribute. However, per the checkbox specification only an empty value or 'checked' are valid.

Change(function() { $("#myform input:checkbox"). attr("checked", false); $(this). attr("checked", true); }); This should work for any number of checkboxes in the form.

How to use Checkbox inside Select Option using JavaScript ?Create a select element that shows Select options and also create a div that contains CheckBoxes and style that using CSS.Add javaScript functionality which is called when the user clicks on div that contains the select element.

If you want to do a selectionable list where only one can be selected the best in term of UX is to use radio button. Show activity on this post. You can use the setState to set the checked field and alter the states onChange.

The Windows Forms CheckBox control indicates whether a particular condition is on or off. It is commonly used to present a Yes/No or True/False selection to the user. You can use check box controls in groups to display multiple choices from which the user can select one or more.

Create a bound check box, option button, or toggle buttonOpen the form or report in Layout view or Design view by right-clicking it in the Navigation Pane, and then clicking the view you want on the shortcut menu.If the Field List pane is not already displayed, press ALT+F8 to display it.More items...