Class System.Exception

Constructors

• Exception() ( )

  Initializes a new instance of the Exception class.

• Exception(string) ( string message )

  Initializes a new instance of the Exception class with a specified error message.

• Exception(string, System.Exception) ( string message, Exception innerException )

  Initializes a new instance of the Exception class with a specified error message and a reference to the inner exception that is the cause of this exception.

Properties

• Data System.Collections.IDictionary Data { get; }

  Gets a collection of key/value pairs that provide additional user-defined information about the exception.

• HelpLink string HelpLink { get; set; }

  Gets or sets a link to the help file that links to the help associated with this exception.

• HResult int HResult { get; set; }

  Gets or sets HRESULT, which is a numeric value that is assigned to a specific exception.

• InnerException Exception InnerException { get; }

  Gets a reference to the Exception instance that causes the current exception.

• Message string Message { get; }

  Gets an error message that describes the current exception.

• Source string Source { get; set; }

  Gets or sets the name of the application or the object that causes the error.

• StackTrace string StackTrace { get; }

  Gets a string representation of the immediate frames of the call stack.

• TargetSite System.Reflection.MethodBase TargetSite { get; }

  Gets the MethodBase object that describes the currently executing stack frame.

Methods

• Equals(object) ( object obj )

  Determines whether the specified object is equal to the current object.

• GetBaseException() ( )

  When overridden in a derived class, returns the Exception that is the root cause of the current exception.

• GetHashCode() ( )

  Serves as the default hash function.

• GetObjectData(System.Runtime.Serialization.SerializationInfo,System.Runtime.Serialization.StreamingContext) ( System.Runtime.Serialization.SerializationInfo info, System.Runtime.Serialization.StreamingContext context )

  Sets the SerializationInfo object with information about the exception.

• GetType() ( )

  Gets the type of the current instance.

• ToString() ( )

  Overrides Object.ToString to return a string representation of the current exception.

Remarks

The Exception class is the base class for all exceptions in the .NET Framework. Exceptions are used to signal that errors have occurred during the execution of a program. When an error occurs, an exception is thrown. If the exception is not handled, the program will terminate.

You can catch exceptions using the try-catch block. The catch block specifies the type of exception that it can handle. If an exception is thrown, the .NET runtime will search for a matching catch block. If a match is found, the code in the catch block will be executed.

Example