HttpRuntimeSection.MaxRequestLength Property (System.Web.Configuration)

MSDN Library
.NET Development
.NET Framework 3.5
.NET Framework Class Library
System.Web.Configuration Namespace
HttpRuntimeSection Class
HttpRuntimeSection Properties

ApartmentThreading Property
AppRequestQueueLimit Property
DelayNotificationTimeout Property
Enable Property
EnableHeaderChecking Property
EnableKernelOutputCache Property
EnableVersionHeader Property
ExecutionTimeout Property
Item Property

MaxRequestLength Property

MaxWaitChangeNotification Property
MinFreeThreads Property
MinLocalRequestFreeThreads Property
RequestLengthDiskThreshold Property
RequireRootedSaveAsPath Property
SendCacheControlHeader Property
ShutdownTimeout Property
UseFullyQualifiedRedirectUrl Property
WaitChangeNotification Property

Related Links

AdapterDictionary Class
AnonymousIdentificationSection Class
AssemblyCollection Class
AssemblyInfo Class
AuthenticationMode Enumeration
AuthenticationSection Class
AuthorizationRule Class
AuthorizationRuleAction Enumeration
AuthorizationRuleCollection Class
AuthorizationSection Class
BrowserCapabilitiesCodeGenerator Class
BrowserCapabilitiesFactory Class
BrowserCapabilitiesFactoryBase Class
BufferModesCollection Class
BufferModeSettings Class
BuildProvider Class
BuildProviderCollection Class
CacheSection Class
ClientTarget Class
ClientTargetCollection Class
ClientTargetSection Class
CodeSubDirectoriesCollection Class
CodeSubDirectory Class
CompilationSection Class
Compiler Class
CompilerCollection Class
Converter Class
ConvertersCollection Class
CustomError Class
CustomErrorCollection Class
CustomErrorsMode Enumeration
CustomErrorsRedirectMode Enumeration
CustomErrorsSection Class
DeploymentSection Class
EventMappingSettings Class
EventMappingSettingsCollection Class
ExpressionBuilder Class
ExpressionBuilderCollection Class
FormsAuthenticationConfiguration Class
FormsAuthenticationCredentials Class
FormsAuthenticationUser Class
FormsAuthenticationUserCollection Class
FormsAuthPasswordFormat Enumeration
FormsProtectionEnum Enumeration
GlobalizationSection Class
HealthMonitoringSection Class
HostingEnvironmentSection Class
HttpCapabilitiesBase Class
HttpCapabilitiesSectionHandler Class
HttpConfigurationContext Class
HttpCookiesSection Class
HttpHandlerAction Class
HttpHandlerActionCollection Class
HttpHandlersSection Class
HttpModuleAction Class
HttpModuleActionCollection Class
HttpModulesSection Class
HttpRuntimeSection Class
IConfigMapPath Interface
IConfigMapPathFactory Interface
IdentitySection Class
IRemoteWebConfigurationHostServer Interface
LowerCaseStringConverter Class
MachineKeyCompatibilityMode Enumeration
MachineKeySection Class
MachineKeyValidation Enumeration
MachineKeyValidationConverter Class
MembershipSection Class
NamespaceCollection Class
NamespaceInfo Class
OutputCacheProfile Class
OutputCacheProfileCollection Class
OutputCacheSection Class
OutputCacheSettingsSection Class
PagesEnableSessionState Enumeration
PagesSection Class
PassportAuthentication Class
ProcessModelComAuthenticationLevel Enumeration
ProcessModelComImpersonationLevel Enumeration
ProcessModelLogLevel Enumeration
ProcessModelSection Class
ProfileGroupSettings Class
ProfileGroupSettingsCollection Class
ProfilePropertySettings Class
ProfilePropertySettingsCollection Class
ProfileSection Class
ProfileSettings Class
ProfileSettingsCollection Class
ProtocolCollection Class
ProtocolElement Class
ProtocolsConfigurationHandler Class
ProtocolsSection Class
ProvidersHelper Class
RegexWorker Class
RemoteWebConfigurationHostServer Class
RoleManagerSection Class
RootProfilePropertySettingsCollection Class
RuleSettings Class
RuleSettingsCollection Class
ScriptingAuthenticationServiceSection Class
ScriptingJsonSerializationSection Class
ScriptingProfileServiceSection Class
ScriptingRoleServiceSection Class
ScriptingScriptResourceHandlerSection Class
ScriptingSectionGroup Class
ScriptingWebServicesSectionGroup Class
SecurityPolicySection Class
SerializationMode Enumeration
SessionPageStateSection Class
SessionStateSection Class
SiteMapSection Class
SqlCacheDependencyDatabase Class
SqlCacheDependencyDatabaseCollection Class
SqlCacheDependencySection Class
SystemWebCachingSectionGroup Class
SystemWebExtensionsSectionGroup Class
SystemWebSectionGroup Class
TagMapCollection Class
TagMapInfo Class
TagPrefixCollection Class
TagPrefixInfo Class
TraceDisplayMode Enumeration
TraceSection Class
TransformerInfo Class
TransformerInfoCollection Class
TrustLevel Class
TrustLevelCollection Class
TrustSection Class
UrlMapping Class
UrlMappingCollection Class
UrlMappingsSection Class
VirtualDirectoryMapping Class
VirtualDirectoryMappingCollection Class
WebApplicationLevel Enumeration
WebConfigurationFileMap Class
WebConfigurationManager Class
WebContext Class
WebControlsSection Class
WebPartsPersonalization Class
WebPartsPersonalizationAuthorization Class
WebPartsSection Class
XhtmlConformanceMode Enumeration
XhtmlConformanceSection Class

HttpRuntimeSection..::.MaxRequestLength Property
This page is specific to:.NET Framework Version:2.0 3.03.54.0

.NET Framework Class Library

HttpRuntimeSection..::.MaxRequestLength Property

Gets or sets the maximum request size.

Namespace: System.Web.Configuration
Assembly: System.Web (in System.Web.dll)

Syntax

C++

JScript

Copy to Clipboard Print

'Usage

Dim instance As HttpRuntimeSection
Dim value As Integer

value = instance.MaxRequestLength

instance.MaxRequestLength = value

'Declaration

<IntegerValidatorAttribute(MinValue := )> _
<ConfigurationPropertyAttribute("maxRequestLength", DefaultValue := )> _
Public Property MaxRequestLength As Integer

Property Value

Type: System..::.Int32
The maximum request size in kilobytes. The default size is 4096 KB (4 MB).

Exceptions

Exception	Condition
ConfigurationErrorsException	The selected value is less than RequestLengthDiskThreshold.

Remarks

The MaxRequestLength property specifies the limit for the buffering threshold of the input stream. For example, this limit can be used to prevent denial of service attacks that are caused by users who post large files to the server.

The value assigned to this property should be greater or equal to value assigned to the RequestLengthDiskThreshold property.

Topic	Location
How to: Upload Files with the FileUpload Web Server Control	Building ASP .NET Web Applications
How to: Upload Files with the FileUpload Web Server Control	Building ASP .NET Web Applications
How to: Upload Files with the FileUpload Web Server Control	Building ASP .NET Web Applications in Visual Studio
How to: Upload Files with the FileUpload Web Server Control	Building ASP .NET Web Applications in Visual Studio

Examples

The following example shows how to obtain the current MaxRequestLength property value.

C++

JScript

Copy to Clipboard Print

' Get the MaxRequestLength property value.
Response.Write("MaxRequestLength: " & _
  configSection.MaxRequestLength & "<br>")

' Set the MaxRequestLength property value to 2048 kilobytes.
configSection.MaxRequestLength = 2048

Platforms

Windows 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98

The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

Version Information

.NET Framework

Supported in: 3.5, 3.0, 2.0

Reference

HttpRuntimeSection Class

HttpRuntimeSection Members

System.Web.Configuration Namespace

Other Resources

httpRuntime Element (ASP.NET Settings Schema)

Community Content

Obtaining ConfigSection

Added by:ahauptfleisch

Configuration config = WebConfigurationManager.OpenMachineConfiguration();HttpRuntimeSection configSection = config.GetSection("system.web/httpRuntime") as HttpRuntimeSection; 
// Get the MaxRequestLength property value.
Response.Write("MaxRequestLength: " +
  configSection.MaxRequestLength + "<br>");

// Set the MaxRequestLength property value to 2048 kilobytes.
configSection.MaxRequestLength = 2048;
 
1. Open machine.config on the local machine.
WebConfigurationManager.OpenMachineConfiguration()

2. Open root web.config on the local machine.
WebConfigurationManager.OpenWebConfiguration(null)

3. Open web.config for the application at the root of the default web site.
WebConfigurationManager.OpenWebConfiguration("/")

4. Open web.config for a subdirectory of the application found at /MyApp.
WebConfigurationManager.OpenWebConfiguration("/MyApp/subdir")

5. Open web.config for an application at the root of another site.
WebConfigurationManager.OpenWebConfiguration("/", "Another Site")

6. Open the <location> tag for a subdirectory at the application level.
WebConfigurationManager.OpenWebConfiguration("/", null, "/subdir")

7. Open machine.config on another computer, using credentials provided.
WebConfigurationManager.OpenMachineConfiguration(null, "remotemachine", "user", "password")