HttpException Class
Describes an exception that occurred during the processing of HTTP requests.
Assembly: System.Web (in System.Web.dll)
The HttpException type exposes the following members.
| Name | Description | |
|---|---|---|
![]() | HttpException() | Initializes a new instance of the HttpException class and creates an empty HttpException object. |
![]() | HttpException(String) | Initializes a new instance of the HttpException class using a supplied error message. |
![]() | HttpException(Int32, String) | Initializes a new instance of the HttpException class using an HTTP response status code and an error message. |
![]() | HttpException(SerializationInfo, StreamingContext) | Initializes a new instance of the HttpException class with serialized data. |
![]() | HttpException(String, Exception) | Initializes a new instance of the HttpException class using an error message and the InnerException property. |
![]() | HttpException(String, Int32) | Initializes a new instance of the HttpException class using an error message and an exception code. |
![]() | HttpException(Int32, String, Exception) | Initializes a new instance of the HttpException class using an HTTP response status code, an error message, and the InnerException property. |
![]() | HttpException(Int32, String, Int32) | Initializes a new instance of the HttpException class using an HTTP response status code, an error message, and an exception code. |
| Name | Description | |
|---|---|---|
![]() | Data | Gets a collection of key/value pairs that provide additional user-defined information about the exception. (Inherited from Exception.) |
![]() | ErrorCode | Gets the HRESULT of the error. (Inherited from ExternalException.) |
![]() | HelpLink | Gets or sets a link to the help file associated with this exception. (Inherited from Exception.) |
![]() | HResult | Gets or sets HRESULT, a coded numerical value that is assigned to a specific exception. (Inherited from Exception.) |
![]() | InnerException | Gets the Exception instance that caused the current exception. (Inherited from Exception.) |
![]() | Message | Gets a message that describes the current exception. (Inherited from Exception.) |
![]() | Source | Gets or sets the name of the application or the object that causes the error. (Inherited from Exception.) |
![]() | StackTrace | Gets a string representation of the immediate frames on the call stack. (Inherited from Exception.) |
![]() | TargetSite | Gets the method that throws the current exception. (Inherited from Exception.) |
![]() | WebEventCode | Gets the event codes that are associated with the HTTP exception. |
| Name | Description | |
|---|---|---|
![]() ![]() | CreateFromLastError | Creates a new HttpException exception based on the error code that is returned from the Win32 API GetLastError() method. |
![]() | Equals(Object) | Determines whether the specified Object is equal to the current Object. (Inherited from Object.) |
![]() | Finalize | Allows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection. (Inherited from Object.) |
![]() | GetBaseException | When overridden in a derived class, returns the Exception that is the root cause of one or more subsequent exceptions. (Inherited from Exception.) |
![]() | GetHashCode | Serves as a hash function for a particular type. (Inherited from Object.) |
![]() | GetHtmlErrorMessage | Gets the HTML error message to return to the client. |
![]() | GetHttpCode | Gets the HTTP response status code to return to the client. |
![]() | GetObjectData | Gets information about the exception and adds it to the SerializationInfo object. (Overrides Exception::GetObjectData(SerializationInfo, StreamingContext).) |
![]() | GetType | Gets the runtime type of the current instance. (Inherited from Exception.) |
![]() | MemberwiseClone | Creates a shallow copy of the current Object. (Inherited from Object.) |
![]() | ToString | Returns a string that contains the HRESULT of the error. (Inherited from ExternalException.) |
| Name | Description | |
|---|---|---|
![]() | SerializeObjectState | Occurs when an exception is serialized to create an exception state object that contains serialized data about the exception. (Inherited from Exception.) |
The HttpException class is an HTTP-specific exception class that enables ASP.NET to generate exception information. For more information about throwing and handling exceptions, see Handling and Throwing Exceptions.
The following code example demonstrates how to use the HttpException class to raise customized exceptions. The Button_Click method determines which button was clicked, and then calls either the CheckNumber or CheckBoolean method. If the user-entered value in the text box does not correspond to the expected type, an HttpException exception is created and thrown with a customized message based on the error type.
Security Note |
|---|
This example has a text box that accepts user input, which is a potential security threat. By default, ASP.NET Web pages validate that user input does not include script or HTML elements. For more information, see Script Exploits Overview. |
Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.






Security Note