If you are a beginner or not very familiar with javascript or jQuery, ⦠HTML CheckBox Label is used to giving a selected option to the user. +1 = 1 +'1' = 1 Like David Morrow said above you could put your conditional logic into a method - this gives you more readable code - just return out of ⦠A disabled input element is unusable and un-clickable. A disabled input element is unusable and un-clickable. The value is assigned to the variable 'a' based on the provided condition. Hereâs another way you can disable or enable checkboxes on dropdown selection, without any condition. DEMO of checkbox validation â. Style the disabled form controls. I want to disable/enable rechatcha based on uncheck/check from checkbox if unchecked then rechatcha should be disabled; if checked then rechatcha can checklist. In this example, we used the toggle() function to show or hide the div on checkbox check or uncheck using jquery. This is ⦠Inside this function, based on whether CheckBox is checked (selected) or unchecked (unselected), the TextBox is enabled or disabled by setting the disabled property to false or true respectively. Since command column cells also handle click events, use the onSelectionChanged event handler to cancel selection. Or more simply, just reference the control directly. I have below code where I am checking or unchecking the checkbox based on some conditions, and I came across an issue where I am trying to check the checkbox, and it is failing the first time and from the second time onwards works perfectly, After you uncheck the checkbox, the input field will be again hidden. How to disable or enable buttons using javascript and jquery Learn how to enable or disable buttons using javascript and jQuery based on whether the input field is filled or empty. See the second example. Checkboxes typically, but not necessarily, appear in groups, and can be selected and deselected individually. Set this property to true (disable=true) to disable the radio button in JavaScript.