Manipulate Radio Notice For Free

Use the ?checked? property of the radio button element for validating a radio button using JavaScript. It gives a boolean value ?true? if the radio button is selected/checked, if it gives ?false?, it means the radio button is ?not-checked?.

We will step by step follow. Start new website. Put the GridView control on the Default. ... Write the script as below for checking the current selection of the RadioButton control; if more than one is selected then the other selection is removed. ... Bind your GridView in aspx.

Use the querySelector() method to check whether a radio button is selected. Programmers can use JavaScript's querySelector() method to select any HTML element. Here, we have used the querySelector() method to select only the checked radio button. If no radio button is selected, it returns a null value.

Get the value of selected radio button: querySelector() The querySelector() function is a DOM method of JavaScript. This method is used to get the element that matches with the specified CSS selector in the document. Remember you need to specify the name property of the radio button in HTML code.

To create each radio button option, create a RadioButton in your layout. However, because radio buttons are mutually exclusive, you must group them together inside a RadioGroup . By grouping them together, the system ensures that only one radio button can be selected at a time.

To avoid having multiple radio buttons selected use the same name attribute. Radio buttons are normally presented in radio groups. Only one radio button in a group can be selected at the same time. The radio group must share the same name (the value of the name attribute) to be treated...

Use the querySelector() method to check whether a radio button is selected. Programmers can use JavaScript's querySelector() method to select any HTML element. Here, we have used the querySelector() method to select only the checked radio button. If no radio button is selected, it returns a null value.