文件上传 带进度条 多种风格 非常漂亮！
友好的提示 以及上传验证！
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>
<div>
<div class="upload">
<h3>文件上传</h3>
<div>
<iframe id="uploadFrame" frameborder="0" scrolling="no" src="Upload.aspx"></iframe>
<mb:ProgressControl ID="progress" runat="server" CssClass="lightblue" style="display:none" Value="0" Mode="Manual" Speed=".4" Width="100%" />
<div>
<div id="status" class="info">请选择要上传的文件</div>
<div class="commands">
<input id="upload" type="button" value="上传" />
</div>
</div>
</div>
</div>
</div>
</form>
upload.aspx:
if (this.IsPostBack)
{
UploadInfo uploadInfo = this.Session["UploadInfo"] as UploadInfo;
if (uploadInfo == null)
{
// 让父页面知道无法处理上传
const string js = "window.parent.onComplete('error', '无法上传文件。请刷新页面，然后再试一次);";
ScriptManager.RegisterStartupScript(this, typeof(upload_aspx), "progress", js, true);
}
else
{
// 让服务端知道我们还没有准备好..
uploadInfo.IsReady = false;
// 上传验证
if (this.fileUpload.PostedFile != null && this.fileUpload.PostedFile.ContentLength > 0
&& this.fileUpload.PostedFile.ContentLength < 1048576)// 限制1M
{
// 设置路径
string path = this.Server.MapPath(@"Uploads");
string fileName = Path.GetFileName(this.fileUpload.PostedFile.FileName);
// 上传信息
uploadInfo.ContentLength = this.fileUpload.PostedFile.ContentLength;
uploadInfo.FileName = fileName;
uploadInfo.UploadedLength = 0;
//文件存在 初始化...
uploadInfo.IsReady = true;
//缓存
int bufferSize = 1;
byte[] buffer = new byte[bufferSize];
// 保存字节
using (FileStream fs = new FileStream(Path.Combine(path, fileName), FileMode.Create))
{
while (uploadInfo.UploadedLength < uploadInfo.ContentLength)
{
//从输入流放进缓冲区
int bytes = this.fileUpload.PostedFile.InputStream.Read(buffer, 0, bufferSize);
// 字节写入文件流
fs.Write(buffer, 0, bytes);
// 更新大小
uploadInfo.UploadedLength += bytes;
// 线程睡眠 上传就更慢 这样就可以看到进度条了
System.Threading.Thread.Sleep(100);
}
}
// 删除.
File.Delete(Path.Combine(path, fileName));
// 让父页面知道已经处理上传完毕
const string js = "window.parent.onComplete('success', '{0} 已成功上传');";
ScriptManager.RegisterStartupScript(this, typeof(upload_aspx), "progress", string.Format(js, fileName), true);
}
else
{
if (this.fileUpload.PostedFile.ContentLength >= 1048576)//1M
{
const string js = "window.parent.onComplete('error', '超出上传文件限制大小，请重新选择');";
ScriptManager.RegisterStartupScript(this, typeof(upload_aspx), "progress", js, true);
}
else
{
const string js = "window.parent.onComplete('error', '上传文件出错');";
ScriptManager.RegisterStartupScript(this, typeof(upload_aspx), "progress", js, true);
}
}
uploadInfo.IsReady = false;
}
}
代码就不贴完了 直接打包下载吧！
有关上传的都归类在这里了：http://www.cnblogs.com/zengxiangzhan/category/269831.html
目前 流行：
百度