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MissingMemberException Class

The exception that is thrown when there is an attempt to dynamically access a class member that does not exist.

System.Object
  System.Exception
    System.SystemException
      System.MemberAccessException
        System.MissingMemberException
          System.MissingFieldException
          System.MissingMethodException

Namespace:  System
Assembly:  mscorlib (in mscorlib.dll)
[SerializableAttribute]
[ComVisibleAttribute(true)]
public class MissingMemberException : MemberAccessException, 
	ISerializable

The MissingMemberException type exposes the following members.

  NameDescription
Public methodSupported by the XNA FrameworkSupported by Portable Class LibrarySupported in .NET for Windows Store appsMissingMemberException()Initializes a new instance of the MissingMemberException class.
Public methodSupported by the XNA FrameworkSupported by Portable Class LibrarySupported in .NET for Windows Store appsMissingMemberException(String)Initializes a new instance of the MissingMemberException class with a specified error message.
Protected methodMissingMemberException(SerializationInfo, StreamingContext)Initializes a new instance of the MissingMemberException class with serialized data.
Public methodSupported by the XNA FrameworkSupported by Portable Class LibrarySupported in .NET for Windows Store appsMissingMemberException(String, Exception)Initializes a new instance of the MissingMemberException class with a specified error message and a reference to the inner exception that is the root cause of this exception.
Public methodMissingMemberException(String, String)Initializes a new instance of the MissingMemberException class with the specified class name and member name.
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  NameDescription
Public propertySupported by Portable Class LibrarySupported in .NET for Windows Store appsDataGets a collection of key/value pairs that provide additional user-defined information about the exception. (Inherited from Exception.)
Public propertySupported by Portable Class LibrarySupported in .NET for Windows Store appsHelpLinkGets or sets a link to the help file associated with this exception. (Inherited from Exception.)
Public propertySupported by the XNA FrameworkSupported by Portable Class LibrarySupported in .NET for Windows Store appsHResultGets or sets HRESULT, a coded numerical value that is assigned to a specific exception. (Inherited from Exception.)
Public propertySupported by the XNA FrameworkSupported by Portable Class LibrarySupported in .NET for Windows Store appsInnerExceptionGets the Exception instance that caused the current exception. (Inherited from Exception.)
Public propertySupported by the XNA FrameworkMessageGets the text string showing the class name, the member name, and the signature of the missing member. (Overrides Exception.Message.)

In XNA Framework 3.0, this member is inherited from Exception.Message.
Public propertySupported by Portable Class LibrarySupported in .NET for Windows Store appsSourceGets or sets the name of the application or the object that causes the error. (Inherited from Exception.)
Public propertySupported by the XNA FrameworkSupported by Portable Class LibrarySupported in .NET for Windows Store appsStackTraceGets a string representation of the immediate frames on the call stack. (Inherited from Exception.)
Public propertyTargetSiteGets the method that throws the current exception. (Inherited from Exception.)
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  NameDescription
Public methodSupported by the XNA FrameworkSupported by Portable Class LibrarySupported in .NET for Windows Store appsEquals(Object)Determines whether the specified object is equal to the current object. (Inherited from Object.)
Protected methodSupported by the XNA FrameworkSupported by Portable Class LibrarySupported in .NET for Windows Store appsFinalizeAllows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection. (Inherited from Object.)
Public methodSupported by the XNA FrameworkSupported by Portable Class LibrarySupported in .NET for Windows Store appsGetBaseExceptionWhen overridden in a derived class, returns the Exception that is the root cause of one or more subsequent exceptions. (Inherited from Exception.)
Public methodSupported by the XNA FrameworkSupported by Portable Class LibrarySupported in .NET for Windows Store appsGetHashCodeServes as the default hash function. (Inherited from Object.)
Public methodGetObjectDataSets the SerializationInfo object with the class name, the member name, the signature of the missing member, and additional exception information. (Overrides Exception.GetObjectData(SerializationInfo, StreamingContext).)
Public methodSupported by the XNA FrameworkSupported by Portable Class LibrarySupported in .NET for Windows Store appsGetTypeGets the runtime type of the current instance. (Inherited from Exception.)

In XNA Framework 3.0, this member is inherited from Object.GetType().


In Portable Class Library Portable Class Library, this member is inherited from Object.GetType().


In .NET for Windows Store apps Windows 8, this member is inherited from Object.GetType().
Protected methodSupported by the XNA FrameworkSupported by Portable Class LibrarySupported in .NET for Windows Store appsMemberwiseCloneCreates a shallow copy of the current Object. (Inherited from Object.)
Public methodSupported by the XNA FrameworkSupported by Portable Class LibrarySupported in .NET for Windows Store appsToStringCreates and returns a string representation of the current exception. (Inherited from Exception.)
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  NameDescription
Protected eventSerializeObjectStateOccurs when an exception is serialized to create an exception state object that contains serialized data about the exception. (Inherited from Exception.)
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  NameDescription
Protected fieldClassNameHolds the class name of the missing member.
Protected fieldMemberNameHolds the name of the missing member.
Protected fieldSignatureHolds the signature of the missing member.
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Normally a compilation error is generated if the code attempts to access a nonexistent member of a class. MissingMemberException is designed to handle cases where a field or a method is deleted or renamed in one assembly and the change is not reflected in a second assembly. At runtime, MissingMemberException will be thrown when the code in the second assembly attempts to access the missing member in the first assembly.

MissingMemberException is the base class for MissingFieldException and MissingMethodException. In general it is better to use one of the derived classes of MissingMemberException to more precisely indicate the exact nature of the error. Throw a MissingMemberException if you are only interested in capturing the general case of a missing member error.

MissingMemberException uses the HRESULT COR_E_MISSINGMEMBER, that has the value 0x80131512.

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

This example shows what happens if you attempt to use reflection to call a method that does not exist and access a field that does not exist. The application recovers by catching the MissingMethodException, MissingFieldException, and MissingMemberException.

using System;
using System.Reflection;

public class App
{
    public static void Main()
    {

        try
        {
            // Attempt to call a static DoSomething method defined in the App class. 
            // However, because the App class does not define this method, 
            // a MissingMethodException is thrown. 
            typeof(App).InvokeMember("DoSomething", BindingFlags.Static |
                BindingFlags.InvokeMethod, null, null, null);
        }
        catch (MissingMethodException e)
        {
            // Show the user that the DoSomething method cannot be called.
            Console.WriteLine("Unable to call the DoSomething method: {0}", e.Message);
        }

        try
        {
            // Attempt to access a static AField field defined in the App class. 
            // However, because the App class does not define this field, 
            // a MissingFieldException is thrown. 
            typeof(App).InvokeMember("AField", BindingFlags.Static | BindingFlags.SetField,
                null, null, new Object[] { 5 });
        }
        catch (MissingFieldException e)
        {
         // Show the user that the AField field cannot be accessed.
         Console.WriteLine("Unable to access the AField field: {0}", e.Message);
        }

        try
        {
            // Attempt to access a static AnotherField field defined in the App class. 
            // However, because the App class does not define this field, 
            // a MissingFieldException is thrown. 
            typeof(App).InvokeMember("AnotherField", BindingFlags.Static |
                BindingFlags.GetField, null, null, null);
        }
        catch (MissingMemberException e)
        {
         // Notice that this code is catching MissingMemberException which is the 
         // base class of MissingMethodException and MissingFieldException. 
         // Show the user that the AnotherField field cannot be accessed.
         Console.WriteLine("Unable to access the AnotherField field: {0}", e.Message);
        }
    }
}
// This code example produces the following output: 
// 
// Unable to call the DoSomething method: Method 'App.DoSomething' not found. 
// Unable to access the AField field: Field 'App.AField' not found. 
// Unable to access the AnotherField field: Field 'App.AnotherField' not found.

.NET Framework

Supported in: 4.5.1, 4.5, 4, 3.5, 3.0, 2.0, 1.1, 1.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Portable Class Library

Supported in: Portable Class Library

.NET for Windows Store apps

Supported in: Windows 8

.NET for Windows Phone apps

Supported in: Windows Phone 8.1, Windows Phone 8, Silverlight 8.1

Windows Phone 8.1, Windows Phone 8, Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.
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