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TypeLoadException Constructor (String, Exception)

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

Namespace:  System
Assembly:  mscorlib (in mscorlib.dll)

public TypeLoadException(
	string message,
	Exception inner
)

Parameters

message
Type: System.String

The error message that explains the reason for the exception.

inner
Type: System.Exception

The exception that is the cause of the current exception. If the inner parameter is not null, the current exception is raised in a catch block that handles the inner exception.

An exception that is thrown as a direct result of a previous exception can include a reference to the previous exception in the InnerException property. The InnerException property returns the same value that is passed into the constructor, or null if the InnerException property does not supply the inner exception value to the constructor.

The following table shows the initial property values for an instance of TypeLoadException.

Property

Value

InnerException

The inner exception reference.

Message

The error message string.

The following code example demonstrates the TypeLoadException(String, Exception) constructor. It contains a method that generates a TypeLoadException, catches that exception, and throws a new TypeLoadException with a custom message, including the original TypeLoadException as the inner exception.


using System;
using System.Runtime.InteropServices;

public class TypeLoadException_Constructor3
{
   public static void Main() 
   {
      Console.WriteLine("Calling a method in a non-existent DLL which triggers a TypeLoadException.");
      try 
      {
         TypeLoadExceptionDemoClass.GenerateException();
      }  
      catch (TypeLoadException e)
      {
         Console.WriteLine ("TypeLoadException: \n\tError Message = " + e.Message);
         Console.WriteLine ("TypeLoadException: \n\tInnerException Message = " + e.InnerException.Message );
      }  
      catch (Exception e)
      {
         Console.WriteLine ("Exception: \n\tError Message = " + e.Message);
      }
   }
}

class TypeLoadExceptionDemoClass
{ 
   // A call to this method will raise a TypeLoadException.
   [DllImport("NonExistentDLL.DLL", EntryPoint="MethodNotExists")]
   public static extern void NonExistentMethod();

   public static void GenerateException() 
   {
      try 
      {
         NonExistentMethod();
      }
      catch (TypeLoadException e) 
      {
         // Rethrow exception with the exception as inner exception 
         throw new TypeLoadException("This exception was raised due to a call to an invalid method.", e);
      }
   }
}

.NET Framework

Supported in: 4.6, 4.5, 4, 3.5, 3.0, 2.0, 1.1

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

XNA Framework

Supported in: 3.0, 2.0, 1.0

Portable Class Library

Supported in: Portable Class Library

Supported in: Windows Phone 8.1

Supported in: Windows Phone Silverlight 8.1

Supported in: Windows Phone Silverlight 8
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