小编Gar*_*her的帖子

我有一个输入位置应该得到一个数字.我希望它显示为空.但是,当我运行我的程序时,我默认为0或0.00.我怎么能把它弄空？

I tried this but my commandlink disappeared. When i tried to find with firebug, it was there but with size 0 x 0 px.

.myNewButton {
width: 50px !important;
height: 50px !important;
background-image: url('/resources/img/e_menu_icons/x.png')    !important ;
}

.myNewButton:hover {
width: 50px !important;
height: 50px !important;
background-image: url('/resources/img/e_menu_icons/e.png') !important ;
}


<p:commandLink  styleClass="myNewButton" value=""
               oncomplete="myDialog.show(); return false;"
action="#{myBean.actionMyAction()}">
</p:commandLink>

我在primefaces.org中使用了相同的一个,它是:http: //www.primefaces.org/showcase/ui/ajaxStatusScript.jsf

<p:ajaxStatus onstart="statusDialog.show();"       onsuccess="statusDialog.hide();"/>
<p:dialog modal="true" widgetVar="statusDialog" header="Status"   
    draggable="false" closable="false">  
<p:graphicImage value="/design/ajaxloadingbar.gif" />  
</p:dialog>  

如果这段代码存在,我的页面永远不会显示内容.当我用firebug检查时,js错误是Uncaught ReferenceError:statusDialog未定义.