. NET Common exception classes

Class	Description
Base Exception Type:
System.Exception	The base type of all exceptions.
System.ApplicationException	The exception that is thrown when a non-fatal application error occurs.
System.SystemException	Defines a base class for predefined exceptions in the System namespace.
Exception types that are directly derived from System.SystemException:
System.accessviolationexception	The exception that is thrown when attempting to read and write protected memory.
System.ArgumentException	The exception that is thrown when one of the arguments supplied to the method is invalid.
System.Collections.Generic.KeyNotFoundException	Specifies the exception that is thrown when the key used to access an element in the collection does not match any key in the collection.
System.IndexOutOfRangeException	The exception that is thrown when an array is accessed because the element index exceeds the bounds of the array.
System.InvalidCastException	The exception that is thrown because of an invalid type conversion or display conversion.
System.InvalidOperationException	The exception that is thrown when a method call is not valid for the current state of an object.
System.invalidprogramexception	The exception that is thrown when the program contains invalid Microsoft intermediate language (MSIL) or metadata, which usually indicates that there is a bug in the compiler for the build program.
System.IO.IOException	The exception that is thrown when an I/O error occurs.
System.NotImplementedException	The exception that is thrown when a requested method or operation cannot be implemented.
System.NullReferenceException	The exception that is thrown when an attempt is made to manipulate an empty object reference.
System.OutOfMemoryException	The exception that is thrown when there is not enough memory to continue executing the program.
System.StackOverflowException	The exception that is thrown when the execution stack overflows because of too many pending method calls.
Exception types that are directly derived from System.ArgumentException:
System.ArgumentNullException	The exception that is thrown when a null reference is passed to a method that does not accept it as a valid parameter.
System.ArgumentOutOfRangeException	The exception that is thrown when the parameter value exceeds the allowable range of values defined by the calling method.
Exception types that are directly derived from System.ArithmeticException:
System.DivideByZeroException	The exception that is thrown when attempting to divide an integer value or decimal value with 0.
System.notfinitenumberexception	The exception that is thrown when the floating-point value is positive infinity, negative infinity, or non-numeric (NaN).
System.OverflowException	The exception that is thrown when an arithmetic operation, type conversion, or conversion operation in the selected context causes an overflow.
Exception types that are directly derived from system.ioexception:
System.IO.DirectoryNotFoundException	The exception that is thrown when a file or part of a directory is not found.
System.IO.DriveNotFoundException	The exception that is thrown when an attempt to access a drive or share is not available.
System.IO.EndOfStreamException	The exception that is thrown when the read operation attempts to exceed the end of the stream.
System.IO.FileLoadException	The exception that is thrown when a managed program is found but cannot load it.
System.IO.FileNotFoundException	The exception that is thrown when an attempt to access a file that does not exist on disk fails.
System.IO.PathTooLongException	The exception that is thrown when the path name or file name exceeds the system-defined maximum length.
Other common exception types:
ArrayTypeMismatchException	An attempt was made to store an object of the wrong type in an array.
BadImageFormatException	The graphic is in an incorrect format.
DivideByZeroException	Except for 0 exceptions.
Dllnotfoundexception	The referenced DLL was not found.
FormatException	Parameter format is incorrect.
Methodaccessexception	An attempt was made to access a private or protected method.
MissingMemberException	Access an invalid version of the DLL.
NotSupportedException	The called method is not implemented in the class.
PlatformNotSupportedException	This error is thrown when the platform does not support a particular property.

. NET Common exception classes