文件上传 带进度条 多种风格 非常漂亮！
部分代码：
<form id="form1" runat="server">
<asp:ScriptManager ID="scriptManager" runat="server" EnablePageMethods="true" />
<script type="text/javascript">
var intervalID = 0;
var progressBar;
var fileUpload;
var form;
// 进度条
function pageLoad(){
addHandler(get(’upload’), ’click’, onUploadClick);
progressBar = find(’progress’);
}
// 注册表单
function register(form, fileUpload){
this.form = form;
this.fileUpload = fileUpload;
}
//上传验证
function onUploadClick() {
var vaild = fileUpload.value.length > 0;
if(vaild){
get(’upload’).disabled = ’disabled’;
updateMessage(’info’, ’初始化上传...’);
//提交上传
form.submit();
// 隐藏frame
Sys.UI.DomElement.addCssClass(get(’uploadFrame’), ’hidden’);
// 0开始显示进度条
progressBar.set_percentage(0);
progressBar.show();
// 上传过程
intervalID = window.setInterval(function(){
PageMethods.GetUploadStatus(function(result){
if(result){
// 更新进度条为新值
progressBar.set_percentage(result.percentComplete);
//更新信息
updateMessage(’info’, result.message);
if(result == 100){
// 自动消失
window.clearInterval(intervalID);
}
}
});
}, 500);
}
else{
onComplete(’error’, ’您必需选择一个文件’);
}
}
function onComplete(type, msg){
// 自动消失
window.clearInterval(intervalID);
// 显示消息
updateMessage(type, msg);
// 隐藏进度条
progressBar.hide();
progressBar.set_percentage(0);
// 重新启用按钮
get(’upload’).disabled = ’’;
// 显示frame
Sys.UI.DomElement.removeCssClass(get(’uploadFrame’), ’hidden’);
}
function updateMessage(type, value){
var status = get(’status’);
status.innerHTML = value;
// 移除样式
status.className = ’’;
Sys.UI.DomElement.addCssClass(status, type);
}
</script>
