ArrayTypeMismatchException ArrayTypeMismatchException ArrayTypeMismatchException ArrayTypeMismatchException Class

Definition

The exception that is thrown when an attempt is made to store an element of the wrong type within an array.

public ref class ArrayTypeMismatchException : SystemException
[System.Runtime.InteropServices.ComVisible(true)]
[System.Serializable]
public class ArrayTypeMismatchException : SystemException
type ArrayTypeMismatchException = class
    inherit SystemException
Public Class ArrayTypeMismatchException
Inherits SystemException
Inheritance
ArrayTypeMismatchExceptionArrayTypeMismatchExceptionArrayTypeMismatchExceptionArrayTypeMismatchException
Attributes

Examples

The following code example demonstrates scenarios where ArrayTypeMismatchException is thrown.

using namespace System;
int main()
{
   array<String^>^names = { "Dog", "Cat", "Fish"};
   array<Object^>^objs = dynamic_cast<array<Object^>^>(names);
   try
   {
      objs[ 2 ] = (Object^)"Mouse";
      for ( Int32 i = 0; i < objs->Length; i++ )
      {
         Console::WriteLine( objs[ i ] );

      }
   }
   catch ( System::ArrayTypeMismatchException^ ) 
   {
      
      // Not reached, "Mouse" is of the correct type
      Console::WriteLine(  "Exception Thrown" );
   }

   try
   {
      Object^ obj = 13;
      objs[ 2 ] = obj;
   }
   catch ( System::ArrayTypeMismatchException^ ) 
   {
      
      // Always reached, 13 is not a string.
      Console::WriteLine(  "New element is not of the correct type" );
   }

   
   // Set obj to an array of objects instead of an array of strings
   array<Object^>^objs2 = gcnew array<Object^>(3);
   try
   {
      objs2[ 0 ] = (Object^)"Turtle";
      objs2[ 1 ] = 12;
      objs2[ 2 ] = 2.341;
      for ( Int32 i = 0; i < objs->Length; i++ )
      {
         Console::WriteLine( objs2[ i ] );

      }
   }
   catch ( System::ArrayTypeMismatchException^ ) 
   {
      
      // ArrayTypeMismatchException is not thrown this time.
      Console::WriteLine(  "Exception Thrown" );
   }

}

/*expected return values:
Dog
Cat
Mouse
New element is not of the correct type
Turtle
12
2.341
*/
using System;

namespace ArrayTypeMismatch
{
    class Class1
    {
        static void Main(string[] args) 
        {
            string[] names = {"Dog", "Cat", "Fish"};
            Object[] objs  = (Object[]) names;

            try 
            {
                objs[2] = "Mouse";

                foreach (object animalName in objs) 
                {
                    System.Console.WriteLine(animalName);
                }
            }
            catch (System.ArrayTypeMismatchException) 
            {
                // Not reached; "Mouse" is of the correct type.
                System.Console.WriteLine("Exception Thrown.");
            }

            try 
            {
                Object obj = (Object) 13;
                objs[2] = obj;
            }
            catch (System.ArrayTypeMismatchException) 
            {
                // Always reached, 13 is not a string.
                System.Console.WriteLine(
                    "New element is not of the correct type.");
            }
    
            // Set objs to an array of objects instead of 
            // an array of strings.
            objs  = new Object[3];
            try 
            {
                objs[0] = (Object) "Turtle";
                objs[1] = (Object) 12;
                objs[2] = (Object) 2.341;

                foreach (object element in objs) 
                {
                    System.Console.WriteLine(element);
                }
            }
            catch (System.ArrayTypeMismatchException) 
            {
                // ArrayTypeMismatchException is not thrown this time.
                System.Console.WriteLine("Exception Thrown.");
            }
        }
    }
}
Option Explicit On 
Option Strict On

Imports System


Namespace ArrayTypeMismatch

   Class Class1

      Public Shared Sub Main(ByVal args() As String)
         
         Dim names As String() = {"Dog", "Cat", "Fish"}
         Dim objs As System.Object() = CType(names, System.Object())

         Try
            objs(2) = "Mouse"

            Dim animalName As Object
            For Each animalName In objs
               System.Console.WriteLine(animalName)
            Next animalName
         Catch exp As System.ArrayTypeMismatchException
            ' Not reached, "Mouse" is of the correct type.
            System.Console.WriteLine("Exception Thrown.")
         End Try

         Try
            Dim obj As System.Object
            obj = CType(13, System.Object)
            objs(2) = obj
         Catch exp As System.ArrayTypeMismatchException
            ' Always reached, 13 is not a string.
            System.Console.WriteLine("New element is not of the correct type.")
         End Try

         ' Set objs to an array of objects instead of an array of strings.
         Dim objs2(3) As System.Object
         Try
            objs2(0) = "Turtle"
            objs2(1) = 12
            objs2(2) = 2.341

            Dim element As Object
            For Each element In objs2
               System.Console.WriteLine(element)
            Next element
         Catch exp As System.ArrayTypeMismatchException
            ' ArrayTypeMismatchException is not thrown this time.
            System.Console.WriteLine("Exception Thrown.")
         End Try
         
      End Sub
   End Class
End Namespace

Remarks

ArrayTypeMismatchException is thrown when the system cannot convert the element to the type declared for the array. For example, an element of type String cannot be stored in an Int32 array because conversion between these types is not supported. It is generally unnecessary for applications to throw this exception.

The following Microsoft intermediate language (MSIL) instructions throw ArrayTypeMismatchException :

  • ldelem.<type>

  • ldelema

  • stelem.<type>

ArrayTypeMismatchException uses the HRESULT COR_E_ARRAYTYPEMISMATCH, which has the value 0x80131503.

For a list of initial property values for an instance of ArrayTypeMismatchException, see the ArrayTypeMismatchException constructors.

Constructors

ArrayTypeMismatchException() ArrayTypeMismatchException() ArrayTypeMismatchException() ArrayTypeMismatchException()

Initializes a new instance of the ArrayTypeMismatchException class.

ArrayTypeMismatchException(SerializationInfo, StreamingContext) ArrayTypeMismatchException(SerializationInfo, StreamingContext) ArrayTypeMismatchException(SerializationInfo, StreamingContext) ArrayTypeMismatchException(SerializationInfo, StreamingContext)

Initializes a new instance of the ArrayTypeMismatchException class with serialized data.

ArrayTypeMismatchException(String) ArrayTypeMismatchException(String) ArrayTypeMismatchException(String) ArrayTypeMismatchException(String)

Initializes a new instance of the ArrayTypeMismatchException class with a specified error message.

ArrayTypeMismatchException(String, Exception) ArrayTypeMismatchException(String, Exception) ArrayTypeMismatchException(String, Exception) ArrayTypeMismatchException(String, Exception)

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

Properties

Data Data Data Data

Gets a collection of key/value pairs that provide additional user-defined information about the exception.

(Inherited from Exception)
HelpLink HelpLink HelpLink HelpLink

Gets or sets a link to the help file associated with this exception.

(Inherited from Exception)
HResult HResult HResult HResult

Gets or sets HRESULT, a coded numerical value that is assigned to a specific exception.

(Inherited from Exception)
InnerException InnerException InnerException InnerException

Gets the Exception instance that caused the current exception.

(Inherited from Exception)
Message Message Message Message

Gets a message that describes the current exception.

(Inherited from Exception)
Source Source Source Source

Gets or sets the name of the application or the object that causes the error.

(Inherited from Exception)
StackTrace StackTrace StackTrace StackTrace

Gets a string representation of the immediate frames on the call stack.

(Inherited from Exception)
TargetSite TargetSite TargetSite TargetSite

Gets the method that throws the current exception.

(Inherited from Exception)

Methods

Equals(Object) Equals(Object) Equals(Object) Equals(Object)

Determines whether the specified object is equal to the current object.

(Inherited from Object)
GetBaseException() GetBaseException() GetBaseException() 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() GetHashCode() GetHashCode() GetHashCode()

Serves as the default hash function.

(Inherited from Object)
GetObjectData(SerializationInfo, StreamingContext) GetObjectData(SerializationInfo, StreamingContext) GetObjectData(SerializationInfo, StreamingContext) GetObjectData(SerializationInfo, StreamingContext)

When overridden in a derived class, sets the SerializationInfo with information about the exception.

(Inherited from Exception)
GetType() GetType() GetType() GetType()

Gets the runtime type of the current instance.

(Inherited from Exception)
MemberwiseClone() MemberwiseClone() MemberwiseClone() MemberwiseClone()

Creates a shallow copy of the current Object.

(Inherited from Object)
ToString() ToString() ToString() ToString()

Creates and returns a string representation of the current exception.

(Inherited from Exception)

Events

SerializeObjectState SerializeObjectState SerializeObjectState SerializeObjectState

Occurs when an exception is serialized to create an exception state object that contains serialized data about the exception.

(Inherited from Exception)

Applies to

See also