System.Xml.Xsl.XsltException Class

Assembly: System.Xml.dll
Namespace: System.Xml.Xsl
Summary
The exception that is thrown when an error occurs while processing an Extensible Stylesheet Language (XSL) transform.
C# Syntax:
[Serializable]
public class XsltException : SystemException
See also:
System.Xml.Xsl Namespace

System.Xml.Xsl.XsltException Member List:

Public Constructors
ctor #2 Overloaded:
.ctor(string message, Exception innerException)

Initializes a new instance of the XsltException class.
Public Properties
HelpLink
(inherited from System.Exception)
Read-write

See base class member description: System.Exception.HelpLink


Gets or sets a link to the help file associated with this exception.
InnerException
(inherited from System.Exception)
Read-only

See base class member description: System.Exception.InnerException


Gets the Exception instance that caused the current exception.
LineNumber Read-only

Gets the line number indicating where the error occurred in the stylesheet.
LinePosition Read-only

Gets the line position indicating where the error occurred in the stylesheet.
Message Read-only

Overridden:
Source
(inherited from System.Exception)
Read-write

See base class member description: System.Exception.Source


Gets or sets the name of the application or the object that causes the error.
SourceUri Read-only

StackTrace
(inherited from System.Exception)
Read-only

See base class member description: System.Exception.StackTrace


Gets a string representation of the frames on the call stack at the time the current exception was thrown.
TargetSite
(inherited from System.Exception)
Read-only

See base class member description: System.Exception.TargetSite


Gets the method that throws the current exception.
Public Methods
Equals
(inherited from System.Object)
See base class member description: System.Object.Equals

Derived from System.Object, the primary base class for all objects.
GetBaseException
(inherited from System.Exception)
See base class member description: System.Exception.GetBaseException


When overridden in a derived class, returns the Exception that is the root cause of one or more subsequent exceptions.
GetHashCode
(inherited from System.Object)
See base class member description: System.Object.GetHashCode

Derived from System.Object, the primary base class for all objects.
GetObjectData Overridden:
Streams all the XsltException properties into the SerializationInfo class for the given StreamingContext.
GetType
(inherited from System.Object)
See base class member description: System.Object.GetType

Derived from System.Object, the primary base class for all objects.
ToString
(inherited from System.Exception)
See base class member description: System.Exception.ToString


Creates and returns a string representation of the current exception.
Protected Constructors
ctor #1 Overloaded:
.ctor(SerializationInfo info, StreamingContext context)

Protected Properties
HResult
(inherited from System.Exception)
Read-write

See base class member description: System.Exception.HResult


Gets or sets HRESULT, a coded numerical value that is assigned to a specific exception.
Protected Methods
Finalize
(inherited from System.Object)
See base class member description: System.Object.Finalize

Derived from System.Object, the primary base class for all objects.
MemberwiseClone
(inherited from System.Object)
See base class member description: System.Object.MemberwiseClone

Derived from System.Object, the primary base class for all objects.

Hierarchy:


System.Xml.Xsl.XsltException Member Details

Overloaded ctor #1
Summary
Initializes a new instance of the XsltException class using the information in the SerializationInfo and StreamingContext objects.
C# Syntax:
protected XsltException(
   SerializationInfo info,
   StreamingContext context
);
Parameters:

info

The SerializationInfo object containing all the properties of an XsltException.

context

The StreamingContext object.

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Overloaded ctor #2
Summary
Initializes a new instance of the XsltException class.
C# Syntax:
public XsltException(
   string message,
   Exception innerException
);
Parameters:

message

The description of the error condition.

innerException

The Exception which threw the XsltException, if any. This value can be null.

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Property: HelpLink (read-write)
Inherited
See base class member description: System.Exception.HelpLink

Summary
Gets or sets a link to the help file associated with this exception.
C# Syntax:
public virtual string HelpLink {get; set;}
Remarks
The return value, which represents a help file, is a URN or URL. For example, the HelpLink value could be:

"file:///C:/Applications/Bazzal/help.html#ErrorNum42"

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Property: HResult (read-write)
Inherited
See base class member description: System.Exception.HResult

Summary
Gets or sets HRESULT, a coded numerical value that is assigned to a specific exception.
C# Syntax:
protected int HResult {get; set;}
Remarks
HRESULT is a 32-bit value, divided into three different fields: a severity code, a facility code, and an error code. The severity code indicates whether the return value represents information, warning, or error. The facility code identifies the area of the system responsible for the error. The error code is a unique number that is assigned to represent the exception. Each exception is mapped to a distinct HRESULT. When managed code throws an exception, the runtime passes the HRESULT to the COM client. When unmanaged code returns an error, the HRESULT is converted to an exception, which is then thrown by the runtime.

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Property: InnerException (read-only)
Inherited
See base class member description: System.Exception.InnerException

Summary
Gets the Exception instance that caused the current exception.
C# Syntax:
public Exception InnerException {get;}
Remarks
When an exception X is thrown as a direct result of a previous exception Y, the InnerException property of X should contain a reference to Y.

Use the InnerException property to obtain the set of exceptions that led to the current exception.

You can create a new exception that catches an earlier exception. The code that handles the second exception can make use of the additional information from the earlier exception to handle the error more appropriately.

Suppose that there is a function that reads a file and formats the data from that file. In this example, as the code tries to read the file, an IOException is thrown. The function catches the IOException and throws a FileNotFoundException. The IOException could be saved in the Exception.InnerException property of the FileNotFoundException, enabling the code that catches the FileNotFoundException to examine what causes the initial error.

The Exception.InnerException property, which holds a reference to the inner exception, is set upon initialization of the exception object.

Example
The following example demonstrates throwing and catching an exception that references an inner exception.
using System;
public class MyAppException:ApplicationException 
{
   public MyAppException (String message) : base (message) 
   {}
   public MyAppException (String message, Exception inner) : base(message,inner) {}	
   }
public class ExceptExample 
{
   public void ThrowInner () 
   {
   throw new MyAppException("ExceptExample inner exception");
   }
   public void CatchInner() 
   {
      try 
      {
      this.ThrowInner();
      }
         catch (Exception e) 
         {
         throw new MyAppException("Error caused by trying ThrowInner.",e);
         }
      }
   }
public class Test 
{
   public static void Main() 
   {
   ExceptExample testInstance = new ExceptExample();
      try 
      {
      testInstance.CatchInner();
      }
         catch(Exception e) 
         {
         Console.WriteLine ("In Main catch block. Caught: {0}", e.Message);
         Console.WriteLine ("Inner Exception is {0}",e.InnerException);
         }
      }
}

    

This code has the following output:

In Main catch block. Caught: Error caused by trying ThrowInner. Inner Exception is MyAppException: ExceptExample inner exception at ExceptExample.ThrowInner() at ExceptExample.CatchInner()

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Property: LineNumber (read-only)
Summary
Gets the line number indicating where the error occurred in the stylesheet.

Note This property is used by the XsltCompileException class.
C# Syntax:
public int LineNumber {get;}

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Property: LinePosition (read-only)
Summary
Gets the line position indicating where the error occurred in the stylesheet.

Note This property is used by the XsltCompileException class.
C# Syntax:
public int LinePosition {get;}

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Overridden Property: Message (read-only)
Summary
Gets the formatted error message describing the current exception.
C# Syntax:
public override string Message {get;}

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Property: Source (read-write)
Inherited
See base class member description: System.Exception.Source

Summary
Gets or sets the name of the application or the object that causes the error.
C# Syntax:
public virtual string Source {get; set;}
Remarks
If Exception.Source is not set, the name of the assembly where the exception originated is returned.

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Property: SourceUri (read-only)
Summary
Gets the location path of the stylesheet.
C# Syntax:
public string SourceUri {get;}

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Property: StackTrace (read-only)
Inherited
See base class member description: System.Exception.StackTrace

Summary
Gets a string representation of the frames on the call stack at the time the current exception was thrown.
C# Syntax:
public virtual string StackTrace {get;}
Remarks
The execution stack keeps track of all the methods that are in execution at a given instant. A trace of the method calls is called a stack trace. The stack trace listing provides a means to follow the call sequence to the line number in the method where the exception occurs.

StackTrace may not report as many method calls as expected, due to code transformations, such as inlining, that occur during optimization.



Notes to inheritors: The StackTrace property is overridden in classes that require control over the stack trace content or format.

By default, the stack trace is captured immediately before an exception object is thrown. Use Environment.StackTrace to get stack trace information when no exception is being thrown.

See also:
Environment.StackTrace

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Property: TargetSite (read-only)
Inherited
See base class member description: System.Exception.TargetSite

Summary
Gets the method that throws the current exception.
C# Syntax:
public MethodBase TargetSite {get;}
Remarks
If the method that throws this exception is not available and the stack trace is not a null reference (not set or empty), Exception.TargetSite obtains the method from the stack trace. If the stack trace is a null reference , Exception.TargetSite also returns a null reference.

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Method: Equals(
   object obj
)
Inherited
See base class member description: System.Object.Equals
C# Syntax:
public virtual bool Equals(
   object obj
);

For more information on members inherited from System.Object click on the link above.

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Method: Finalize()
Inherited
See base class member description: System.Object.Finalize
C# Syntax:
~XsltException();

For more information on members inherited from System.Object click on the link above.

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Method: GetBaseException()
Inherited
See base class member description: System.Exception.GetBaseException

Summary
When overridden in a derived class, returns the Exception that is the root cause of one or more subsequent exceptions.
C# Syntax:
public virtual Exception GetBaseException();
Return Value:
The first exception thrown in a chain of exceptions. If the Exception.InnerException property of the current exception is a null reference (not set or empty), this property returns the current exception.
Remarks
A chain of exceptions consists of a set of exceptions such that each exception in the chain was thrown as a direct result of the exception referenced in its InnerException property. For a given chain, there can be exactly one exception that is the root cause of all other exceptions in the chain. This exception is called the base exception and its InnerException property always contains a null reference.

For all exceptions in a chain of exceptions, the GetBaseException method must return the same object (the base exception).

Use the GetBaseException method when you want to find the root cause of an exception but do not need information about exceptions that may have occurred between the current exception and the first exception.



Notes to inheritors: The GetBaseException method is overridden in classes that require control over the exception content or format.

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Method: GetHashCode()
Inherited
See base class member description: System.Object.GetHashCode
C# Syntax:
public virtual int GetHashCode();

For more information on members inherited from System.Object click on the link above.

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Overridden Method: GetObjectData(
   SerializationInfo info,
   StreamingContext context
)
Summary
Streams all the XsltException properties into the SerializationInfo class for the given StreamingContext.
C# Syntax:
public override void GetObjectData(
   SerializationInfo info,
   StreamingContext context
);
Parameters:

info

The SerializationInfo object.

context

The StreamingContext object.

Implements:
ISerializable.GetObjectData

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Method: GetType()
Inherited
See base class member description: System.Object.GetType
C# Syntax:
public Type GetType();

For more information on members inherited from System.Object click on the link above.

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Method: MemberwiseClone()
Inherited
See base class member description: System.Object.MemberwiseClone
C# Syntax:
protected object MemberwiseClone();

For more information on members inherited from System.Object click on the link above.

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Method: ToString()
Inherited
See base class member description: System.Exception.ToString

Summary
Creates and returns a string representation of the current exception.
C# Syntax:
public override string ToString();
Return Value:
A string representation of the current exception.
Remarks
ToString returns a representation of the current exception that is intended to be understood by humans. Where the exception contains culture-sensitive data, the string representation returned by ToString is required to take into account the current system culture. Although there are no exact requirements for the format of the returned string, it should attempt to reflect the value of the object as perceived by the user.

The default implementation of Exception.ToString obtains the name of the class that threw the current exception, the message, the result of calling ToString on the inner exception, and the result of calling Environment.StackTrace. If any of these members is a null reference (not set or empty), its value is not included in the returned string.

If there is no error message or if it is an empty string (""), then no error message is returned. The name of the inner exception and the stack trace are returned only if they are not a null reference.

This method overrides Object.ToString.



Notes to inheritors: It is recommended, but not required, that ToString be overridden to return information about members declared in the derived class. For example, the ArgumentException class implements ToString so that it returns the value of the ParamName property, if that value is not a null reference.
Example
The following example causes an exception and displays the result of calling ToString on that exception.
using System;

public class MyClass {}
public class ArgExceptionExample 
   {
   public static void Main()
      {
      MyClass my = new MyClass();
      string s = "sometext";
      try 
         {
         int i = s.CompareTo(my);
         }
            catch (Exception e) 
            {
            Console.WriteLine("Error: {0}",e.ToString());
            }
      }
}

    

This code has the following output:

Error: System.ArgumentException: Object must be of type String. at System.String.CompareTo(Object value) at ArgExceptionExample.Main()

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Copyright (c) 2002 Microsoft Corporation. All rights reserved.