Literal控件中jquery无法获取input的值

Question

Literal newlblsearch = default(Literal);//search
        newlblsearch = new Literal();
        newlblsearch.Text = "<div class='search'><div class='title'>搜&nbsp;&nbsp;&nbsp;索<span>Search</span></div><div class='prodsearch'><input id='txtSearch' value='请输入关键词' onfocus=\"if(this.value=='请输入关键词')this.value='';\" onblur=\"if(this.value=='')this.value='请输入关键词';\"  class='txtinput input'/><input id='subinput' value='' type='submit' class='subinput input' onclick='javascript:print()'/></div>";
js中：
function print()
{
    var value = $("#txtSearch").val();
    alert(value);
}jQuery控件Literal asp.net

Answer 1

忘记提问了，jquery alert出来的值不是文本框出来的值，而是默认的“请输入关键词”，请求帮忙啊！

Answer 2

 if (!Page.IsPostBack)
            {
                Literal newlblsearch = default(Literal);//search
                newlblsearch = new Literal();
                newlblsearch.Text = "<div class='search'><div class='title'>搜&nbsp;&nbsp;&nbsp;索<span>Search</span></div><div class='prodsearch'><input id='txtSearch' value='请输入关键词' onfocus=\"if(this.value=='请输入关键词')this.value='';\" onblur=\"if(this.value=='')this.value='请输入关键词';\"  class='txtinput input'/><input id='subinput' value='' type='submit' class='subinput input' onclick='javascript:print()'/></div>";
                this.Page.Controls.Add(newlblsearch);//一定要加这句
            }