[SerializableAttribute]
public class ComponentReadOnlyException : InvalidOperationException

<SerializableAttribute>
Public Class ComponentReadOnlyException
	Inherits InvalidOperationException

[SerializableAttribute]
public ref class ComponentReadOnlyException : public InvalidOperationException

[<SerializableAttribute>]
type ComponentReadOnlyException =  
    class
        inherit InvalidOperationException
    end

The ComponentReadOnlyException type exposes the following members.

	Name	Description
	ComponentReadOnlyException	Constructs a new ComponentReadOnlyException.
	ComponentReadOnlyException(String)	Constructs a new ComponentReadOnlyException.
	ComponentReadOnlyException(SerializationInfo, StreamingContext)	Initializes a new instance of the ComponentReadOnlyException class with serialized data.
	ComponentReadOnlyException(String, Exception)	Constructs a new ComponentReadOnlyException.

	Name	Description
	Data	Gets a collection of key/value pairs that provide additional user-defined information about the exception. (Inherited from Exception.)
	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.)

	Name	Description
	Equals	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.)
	GetObjectData	When overridden in a derived class, sets the SerializationInfo with information about the exception. (Inherited from Exception.)
	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	Creates and returns a string representation of the current exception. (Inherited from Exception.)

	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.)

Many matrices have a clearly defined structure. For example, all elements above the diagonal of a lower triangular matrix are zero. If the matrix is also unit diagonal, then its diagonal elements have the fixed value of 1.

Changing the value of one of these elements would cause the vector or matrix to lose its structure. This is not allowed. If an attempt is made to do so, a ComponentReadOnlyException is thrown.

You can verify whether a component of a vector is writable by calling its IsElementWritable(Int32) method. You can verify whether a component of a matrix is writable by calling its IsElementWritable(Int32, Int32) method. These methods return if the component is read-only, and a ComponentReadOnlyException would be thrown if an attempt was made to change its value.

Numerical Libraries

Reference