对下拉列表的内容进行直接增加与移除,本文介绍一个js Select下拉列表框进行多选、移除、交换内容的例子。
代码:
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <span class='wp_keywordlink_affiliate'><a href="tag/html" title="查看 html 中的全部文章" target="_blank">html</a></span>4/loose.dtd"> <<span class='wp_keywordlink_affiliate'><a href="tag/html" title="查看 html 中的全部文章" target="_blank">html</a></span>> <head> <title>Select下拉列表框进行多选、移除、交换内容-www.jb200.com</title> <meta http-equiv="Content-Type" content="text/<span class='wp_keywordlink_affiliate'><a href="tag/html" title="查看 html 中的全部文章" target="_blank">html</a></span>; charset=gb2312"> </head> <body style="font-size:12px"> <form name="form1" method="post" action=""> <table width="380" border="0" align="center" cellpadding="0" cellspacing="0"> <tr> <td width="150"><table width="150" border="0" cellpadding="1" cellspacing="1" bgcolor="#CAFAFC"> <tr> <td height="25" background="wp-content/uploads/2012/05/79760-772704496-8.gif" bgcolor="#FFFFFF"> 请选择:</td> </tr> <tr> <td align="center" bgcolor="#FFFFFF"><select name="sel_place1" size="6" multiple id="sel_place1" style="width:100px " > <option value="sel1">江苏省</option> <option value="sel2">广东省</option> <option value="sel3">河南省</option> <option value="sel4">吉林省</option> <option value="sel5">浙江省</option> </select></td> </tr> </table></td> <td width="80" align="center" valign="bottom"><input name="sure1" type="button" id="sure1" onClick="allsel(document.form1.sel_place2,document.form1.sel_place1);" value="<<"> <input name="sure2" type="button" id="sure2" onClick="allsel(document.form1.sel_place1,document.form1.sel_place2);" value=">>" align="center" height="2"></td> <td width="150"><table width="150" border="0" cellpadding="1" cellspacing="1" bgcolor="#CAFAFC"> <tr> <td height="25" background="wp-content/uploads/2012/05/79760-772704496-8.gif" bgcolor="#FFFFFF"> 请选择:</td> </tr> <tr> <td align="center" bgcolor="#FFFFFF"><select name="sel_place2" size="6" multiple id="sel_place2" style="width:100px "> </select></td> </tr> </table></td> </tr> </table> </form> <script language="javascript"> function allsel(n1,n2) { while(n1.selectedIndex!=-1) { var indx=n1.selectedIndex; var t=n1.options[indx].text; n2.options.add(new Option(t)); n1.remove(indx); } } </script> </body> </html></td> </tr> </table>