在rich:fileUpload中,如果用户尝试上传一个空文件,即0字节文件,那么我们如何显示错误弹出窗口
我尝试使用onclick =“ emptyFileCheck();”,但未调用emptyFileCheck()方法。
<script type="text/javascript" >
function emptyFileCheck()
{
alert("File to be added");
return "true";
}
</script>
<rich:fileUpload onclick="emptyFileCheck();" fileUploadListener="#{fileUploadBean.listener}" id="upload" acceptedTypes="txt,xml,docx,pdf"
ontyperejected="alert('Only txt,xml,docx and pdf files are accepted');" maxFilesQuantity="5" immediateUpload="true"
onsizerejected="alert('Maximum file size allowed is 5MB.');"
addControlLabel="Upload File">
尝试此事件:onuploadcomplete
此响应基于rich:fileUpload documentation