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Detailed explanation of the selection method of jQuery in the selection box
Detailed explanation of the selection method of jQuery in the selection box
The selection method of the select drop-down list is: $("slect option:eq(1)").attr("selected",true);//The selection method of the second option
chekbox :$("[value=check1"]:checkbox).attr("checked",true);
Radio selection method: $("[value=radio2"]:radio).attr(" checked",true);
The above are abbreviations, the important thing is to look at the code:
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8" /><title>3-10-4</title><style type="text/css">.test{
font-weight:bold;
color : red;}.add{
font-style:italic;}</style>
<!-- 引入jQuery -->
<script src="../../scripts/jquery-1.3.1.js?1.1.11" type="text/javascript"></script>
<script type="text/javascript">
//<![CDATA[ $(function(){ //设置单选下拉框选中 $("input:eq(0)").click(function(){
$("#single option").removeAttr("selected"); //移除属性selected $("#single option:eq(1)").attr("selected",true); //设置属性selected }); //设置多选下拉框选中 $("input:eq(1)").click(function(){
$("#multiple option").removeAttr("selected"); //移除属性selected $("#multiple option:eq(2)").attr("selected",true);//设置属性selected $("#multiple option:eq(3)").attr("selected",true);//设置属性selected }); //设置单选框和多选框选中 $("input:eq(2)").click(function(){
$(":checkbox").removeAttr("checked"); //移除属性checked $(":radio").removeAttr("checked"); //移除属性checked $("[value=check2]:checkbox").attr("checked",true);//设置属性checked $("[value=check3]:checkbox").attr("checked",true);//设置属性checked $("[value=radio2]:radio").attr("checked",true);//设置属性checked });
}); //]]>
</script></head><body><input type="button" value="设置单选下拉框选中"/><input type="button" value="设置多选下拉框选中"/><input type="button" value="设置单选框和多选框选中"/><br/><br/><select id="single">
<option>选择1号</option>
<option>选择2号</option>
<option>选择3号</option></select><select id="multiple" multiple="multiple" style="height:120px;">
<option selected="selected">选择1号</option>
<option>选择2号</option>
<option>选择3号</option>
<option>选择4号</option>
<option selected="selected">选择5号</option></select><br/><br/><input type="checkbox" value="check1"/> 多选1<input type="checkbox" value="check2"/> 多选2<input type="checkbox" value="check3"/> 多选3<input type="checkbox" value="check4"/> 多选4<br/><input type="radio" value="radio1" name="a"/> 单选1<input type="radio" value="radio2" name="a"/> 单选2<input type="radio" value="radio3" name="a"/> 单选3</body></html>
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