今天遇到一个问题，就是“NeatUpload大文件上传控件而导致Nonfile portion > 4194304 bytes错误”,百度后发现了一个解决方法，跟大家分享下:
NeatUpload是一个开源的大文件上传控件，非常的强大，支持文件类型过滤、上传进度条显示、多文件上传等强大的功能。
但部署至项目后，有些地方用普通的FileUpload上传时却发生了一个错误（Nonfile portion > 4194304 bytes，文件大于默认值4M），因如果用NeatUpload控件及需要显示上传进度条的话，得在web.config中加入如下代码：
<httpModules>
<add name="UploadHttpModule"
type="Brettle.Web.NeatUpload.UploadHttpModule, Brettle.Web.NeatUpload"/>
</httpModules>
这时全站都会默认使用此httpModule，当你使用FileUpload上传文件时，只要是超过4M（默认的）的都不能上传，就算你配置了<httpRuntime maxRequestLength="400000" executionTimeout="3600"/>都没用，还是会出现Nonfile portion > 4194304 bytes的错误的。
解决方法如下：
1、在<configuration>里面加入以下代码：
<configSections>
<sectionGroup
name="system.web">
<section name="neatUpload" type="Brettle.Web.NeatUpload.ConfigSectionHandler,
Brettle.Web.NeatUpload" allowLocation="true"
/>
</sectionGroup>
</configSections>
2、在<system.web>节中插入以下代码（此方式是全局性的，第3种为针对某页面）：
<neatUpload useHttpModule="true" maxNormalRequestLength="40960"
maxRequestLength="2097151"
defaultProvider="FilesystemUploadStorageProvider">
<providers>
<add name="FilesystemUploadStorageProvider"
type="Brettle.Web.NeatUpload.FilesystemUploadStorageProvider,
Brettle.Web.NeatUpload"/>
</providers>
</neatUpload>
此方法是修改属性maxNormalRequestLength的值为40960（40M），如果将useHttpModule改为false则无所谓。
3、在<configuration>里面的后面位置加入以下代码（此方式是针对某一页面）：
<location path="UploadFile.aspx"
><!--上传文件的页面路径-->
<system.web>
<neatUpload useHttpModule="true" />
<!--为true则代表使用neatUpload的httpModule，false为不使用-->
<httpRuntime maxRequestLength="40960" executionTimeout="3600"
useFullyQualifiedRedirectUrl="true" />
<!--允许最大为40M-->
</system.web>
</location>
neatUpload节点的相关属性介绍如下：
<neatUpload
useHttpModule="true or false, defaults to
true"
maxNormalRequestLength="up to 2097151 in KBytes, defaults to
4096"
maxRequestLength="up to 2097151 in KBytes, defaults to
2097151"
maxUploadRate="rate in KBytes/sec, defaults to -1 which means
unlimited"
postBackIDQueryParam="parameter name, defaults to
NeatUpload_PostBackID"
multiRequestUploadHandlerUrl="URL that handles the requests in a multi-request
upload,defaults to
~/NeatUpload/MultiRequestUploadHandler.ashx"
debugDirectory="directory to which debug info should be written, defaults to
none"
decryption="name of the SymmetricAlgorithm to use to encrypt/decrypt protected
data, defaults to .NET default algorithm used by
SymmetricAlgorithm.Create()"
validation="name of the HashAlgorithm to use to validate protected data,
defaults to .NET default algorithm used by
HashAlgorithm.Create()"
decryptionKey="32 hex-digit key used to encrypt/decrypt protected data, defaults
to auto-generated for each app
instance"
stateMergeIntervalSeconds="secs between merges of the current and stored upload
states,defaults to
1"
stateStaleAfterSeconds="secs before an unchanged upload state can be removed
from the store, defaults to
60"
defaultStorageProvider="friendly name,defaults to a
FilesystemUploadStorageProvider with default temp
dir"
defaultStateStoreProvider="friendly name, defaults to a
AdaptiveUploadStateStoreProvider"
>
<providers>
<add name="friendly name" type="type derived from
Brettle.Web.NeatUpload.UploadStorageProvider"
/>
</providers>
</neatUpload>
本来来自：http://blog.csdn.net/fgdfgasd/article/details/7108973
分享给遇到同样问题的朋友。
因用了NeatUpload大文件上传控件而导致Nonfile portion > 4194304 bytes错误的解决方法,布布扣,bubuko.com
因用了NeatUpload大文件上传控件而导致Nonfile portion > 4194304 bytes错误的解决方法
原文地址：http://www.cnblogs.com/qtqq/p/3760858.html
