JavaScript Tutorial/jQuery/Form CheckBox
Содержание
30. Check the check box
<source lang="javascript">
<html>
<head> <script type="text/javascript" src="js/jquery-1.3.2.js"></script> <script type="text/javascript"> $(document).ready(function(){ $("#single").val("Single2"); $("#multiple").val(["Multiple2", "Multiple3"]); $("input").val(["check1","check2", "radio1" ]); }); </script> <style> .selected { color:red; } .highlight { background:yellow; } </style> </head> <body> <body> <select id="single"> <option>1</option> <option>2</option> </select> <select id="multiple" multiple="multiple"> <option selected="selected">Multiple</option> <option>Multiple2</option> <option selected="selected">Multiple3</option> </select>
<input type="checkbox" name="checkboxname" value="check1"/> check1 <input type="checkbox" name="checkboxname" value="check2"/> check2 <input type="radio" name="r" value="radio1"/> radio1 <input type="radio" name="r" value="radio2"/> radio2 </body>
</html></source>
30. Get checkbox from form controls
<source lang="javascript">
<html>
<head> <script type="text/javascript" src="js/jquery-1.3.2.js"></script> <script type="text/javascript"> $(document).ready(function(){ var input = $("input:checkbox"); $("div").text(input.length); }); </script> </head> <body> <form> <input type="checkbox" /> </form>
</body>
</html></source>
30. Get checked checkbox
<source lang="javascript">
<html>
<head> <script type="text/javascript" src="js/jquery-1.3.2.js"></script> <script type="text/javascript"> $(document).ready(function(){ var n = $("input:checked").length; $("div").text(n); }); </script> </head> <body> <form> <input type="checkbox" name="newsletter" checked="checked" /> <input type="checkbox" name="newsletter" checked="checked"/> </form>
</body>
</html></source>
30. Preset checkbox
<source lang="javascript">
<html>
<head> <script type="text/javascript" src="js/jquery-1.3.2.js"></script> <script type="text/javascript"> $(document).ready(function(){ $("input").val(["check1","check2", "radio1" ]); }); </script> </head> <body> <body> <input type="checkbox" name="checkboxname" value="check1"/> check1 <input type="checkbox" name="checkboxname" value="check2"/> check2 <input type="radio" name="r" value="radio1"/> radio1 <input type="radio" name="r" value="radio2"/> radio2 </body>
</html></source>