In this Section you will learn:
In this Section you will learn:
- What is System Exception?
- Complete List of Exception Class in C#
What is System Exception?
System Exception is predefined Exception class in C# that is ready to use in programming. Just choose which exception may occur in your code and use it in a catch block.
It this chapter we are listing complete list of system exception class. You can use this exception for writing error free and robust code.
Complete List of Exception Class with Difinition
System Exception
| Exception | Condition |
|---|---|
| AccessViolationException | It is thrown when try to read or write protected memory. |
| AggregateException | Represents one or more errors that occur during application execution. |
| AppDomainUnloadedException | It is thrown when try to access an unloaded application domain. |
| ApplicationException | It is base class for application-defined exceptions. |
| ArgumentException | It is thrown when invalid argument provided to a method. |
| ArgumentNullException | It is thrown when a method requires argument but no argument is provided. |
| ArgumentOutOfRangeException | It is thrown when value of an argument is outside the allowable range. |
| ArithmeticException | It is thrown when doing arithmetic, casting, or conversion operation. |
| ArrayTypeMismatchException | It is thrown when try to store an element of the wrong type within an array. |
| BadImageFormatException | It is thrown when file image, dll or exe program is invalid. |
| CannotUnloadAppDomainException | It is thrown when try to unload an application domain fails. |
| ContextMarshalException | The exception that is thrown when an attempt to marshal an object across a context boundary fails. |
| DataMisalignedException | It is thrown thrown when a unit of data is read from or written to an address that is not a multiple of the data size. |
| DivideByZeroException | It is thrown when there is an attempt to divide an integral or decimal value by zero. |
| DllNotFoundException | It is thrown when a DLL specified in a DLL import cannot be found. |
| DuplicateWaitObjectException | The exception that is thrown when an object appears more than once in an array of synchronization objects. |
| EntryPointNotFoundException | The exception that is thrown when an attempt to load a class fails due to the absence of an entry method. |
| ExecutionEngineException | The exception that is thrown when there is an internal error in the execution engine of the common language runtime. |
| FieldAccessException | It is thrown when there is an invalid attempt to access a private or protected field inside a class. |
| FormatException | The exception that is thrown when the format of an argument is invalid, or when a composite format string is not well formed. |
| IndexOutOfRangeException | The exception that is thrown when an attempt is made to access an element of an array or collection with an index that is outside its bounds. |
| InsufficientMemoryException | The exception that is thrown when a check for sufficient available memory fails. This class cannot be inherited. |
| InvalidCastException | The exception that is thrown for invalid casting or explicit conversion. |
| InvalidOperationException | The exception that is thrown when a method call is invalid for the object's current state. |
| InvalidProgramException | The exception that is thrown when a program contains invalid Microsoft intermediate language (MSIL) or metadata. |
| InvalidTimeZoneException | The exception that is thrown when time zone information is invalid. |
| MemberAccessException | The exception that is thrown when an attempt to access a class member fails. |
| MethodAccessException | The exception that is thrown when there is an invalid attempt to access a method, such as accessing a private method from partially trusted code. |
| MissingFieldException | The exception that is thrown when there is an attempt to dynamically access a field that does not exist. |
| MissingMemberException | The exception that is thrown when there is an attempt to dynamically access a class member that does not exist. |
| MissingMethodException | The exception that is thrown when there is an attempt to dynamically access a method that does not exist. |
| MulticastNotSupportedException | The exception that is thrown when there is an attempt to combine two delegates based on the Delegate type instead of the MulticastDelegate type. |
| NotCancelableException | It is thrown when an attempt is made to cancel an operation that is not cancelable. |
| NotFiniteNumberException | The exception that is thrown when a floating-point value is positive infinity, negative infinity, or Not-a-Number (NaN). |
| NotImplementedException | The exception that is thrown when a requested method or operation is not implemented. |
| NotSupportedException | The exception that is thrown when an invoked method is not supported, or when there is an attempt to read, seek, or write to a stream that does not support the invoked functionality. |
| NullReferenceException | The exception that is thrown when there is an attempt to dereference a null object reference. |
| ObjectDisposedException | The exception that is thrown when an operation is performed on a disposed object. |
| OperationCanceledException | The exception that is thrown in a thread upon cancellation of an operation that the thread was executing. |
| OutOfMemoryException | The exception that is thrown when there is not enough memory to continue the execution of a program. |
| OverflowException | The exception that is thrown when an arithmetic, casting, or conversion operation in a checked context results in an overflow. |
| PlatformNotSupportedException | The exception that is thrown when a feature does not run on a particular platform. |
| RankException | The exception that is thrown when an array with the wrong number of dimensions is passed to a method. |
| StackOverflowException | The exception that is thrown when the execution stack overflows because it contains too many nested method calls. |
| SystemException | Serves as the base class for system exceptions namespace. |
| TimeoutException | The exception that is thrown when the time allotted for a process or operation has expired. |
| TimeZoneNotFoundException | The exception that is thrown when a time zone cannot be found. |
| TypeAccessException | The exception that is thrown when a method attempts to use a type that it does not have access to. |
| TypeInitializationException | The exception that is thrown as a wrapper around the exception thrown by the class initializer. This class cannot be inherited. |
| TypeLoadException | The exception that is thrown when type-loading failures occur. |
| TypeUnloadedException | The exception that is thrown when there is an attempt to access an unloaded class. |
| UnauthorizedAccessException | The exception that is thrown when the operating system denies access because of an I/O error or a specific type of security error. |
| UriFormatException | The exception that is thrown when an invalid Uniform Resource Identifier (URI) is detected. |
System.Data Exception
| Exception | Condition |
|---|---|
| ConstraintException | Represents the exception that is thrown when attempting an action that violates a constraint. |
| DataException | Represents the exception that is thrown when attempting an action that violates a constraint. |
| DBConcurrencyException | Gets or sets the value of the DataRow that generated the DBConcurrencyException. |
| DeleteRowInaccessibleException | Represents the exception that is thrown when an action is tried on a DataRow that has been deleted. |
| DuplicateNameException | Represents the exception that is thrown when a duplicate database object name is encountered during an add operation in a DataSet -related object. |
| EvaluateException | Represents the exception that is thrown when the Expression property of a DataColumn cannot be evaluated. |
| InRowChangingEventException | Represents the exception that is thrown when you call the EndEdit method within the RowChanging event. |
| InvalidConstraintException | Represents the exception that is thrown when incorrectly trying to create or access a relation. |
| InvalidExpressionException | Represents the exception that is thrown when you try to add a DataColumn that contains an invalid Expression to a DataColumnCollection. |
| MissingPrimaryKeyException | Represents the exception that is thrown when you try to access a row in a table that has no primary key. |
| NoNullAllowedException | Represents the exception that is thrown when you try to insert a null value into a column where AllowDBNull is set tofalse. |
| OperationAbortedException | This exception is thrown when an ongoing operation is aborted by the user. |
| ReadOnlyException | Represents the exception that is thrown when you try to change the value of a read-only column. |
| RowNotInTableException | Represents the exception that is thrown when you try to perform an operation on a DataRow that is not in a DataTable. |
| StrongTypingException | The exception that is thrown by a strongly typed DataSet when the user accesses a DBNull value. |
| SyntaxErrorException | Represents the exception that is thrown when the Expression property of a DataColumn contains a syntax error. |
| TypedDataSetGeneratorException | The exception that is thrown when a name conflict occurs while generating a strongly typed DataSet. |
| VersionNotFoundException | Represents the exception that is thrown when you try to return a version of a DataRow that has been deleted. |
System.IO Exception
| Exception | Condition |
|---|---|
| DirectoryNotFoundException | The exception that is thrown when part of a file or directory cannot be found. |
| DriveNotFoundException | The exception that is thrown when a drive that is referenced by an operation could not be found. |
| EndOfStreamException | An EndOfStreamException exception is thrown when there is an attempt to read past the end of a stream. |
| FileFormatException | The exception that is thrown when an input file or a data stream that is supposed to conform to a certain file format specification is malformed. |
| FileLoadException | The exception that is thrown when a managed assembly is found but cannot be loaded. |
| FileNotFoundException | The exception that is thrown when an attempt to access a file that does not exist on disk fails. |
| InternalBufferOverflowException | The exception thrown when the internal buffer overflows. |
| InvalidDataException | The exception that is thrown when a data stream is in an invalid format. |
| IOException | The exception that is thrown when an I/O error occurs. |
| PathTooLongException | The exception that is thrown when a path or file name is longer than the system-defined maximum length. |
| PipeException | Thrown when an error occurs within a named pipe. |
Summary
In this chapter you have seen the list of common exception classes in c#. In the next chapter we will see Checked and Unchecked Statements in C#.