JQuery operates the select control value and set value, jqueryselect

JQuery operates the select control value and set value, jqueryselect

1. Cascade select operations. The value of the next select changes with the selected value of the previous select.

$ (". Select_A "). change (function () {$ (". select_ B "). empty (); // clear the last select var option = $ ("<option> "). val (1 ). text ('xxx'); // value option $ (". select_ B "). append (option );});

2. Obtain the value of the selected select item.

$ (". Select"). val ();

3. Obtain the text of the selected select item.

$ (". Select"). find ("option: selected"). text ();

4. Set select to select the corresponding value and text items

$ (". Select"). val ('xxx ');
$ (". Select"). find ("option [text = 'xxx']"). prop ('selected', true );