MissingMethodException Class
The exception that is thrown when there is an attempt to dynamically access a method that does not exist.
Assembly: mscorlib (in mscorlib.dll)
System.Exception
System.SystemException
System.MemberAccessException
System.MissingMemberException
System.MissingMethodException
| Name | Description | |
|---|---|---|
![]() | MissingMethodException() | Initializes a new instance of the MissingMethodException class. |
![]() | MissingMethodException(SerializationInfo, StreamingContext) | Initializes a new instance of the MissingMethodException class with serialized data. |
![]() | MissingMethodException(String) | Initializes a new instance of the MissingMethodException class with a specified error message. |
![]() | MissingMethodException(String, Exception) | Initializes a new instance of the MissingMethodException class with a specified error message and a reference to the inner exception that is the cause of this exception. |
![]() | MissingMethodException(String, String) | Initializes a new instance of the MissingMethodException class with the specified class name and method name. |
| 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 | |
![]() | Message | Gets the text string showing the class name, the method name, and the signature of the missing method. This property is read-only.(Overrides MissingMemberException.Message.) |
![]() | 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(Object) | 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() | |
![]() | GetHashCode() | Serves as the default hash function. (Inherited from Object.) |
![]() | GetObjectData(SerializationInfo, StreamingContext) | Sets the SerializationInfo object with the class name, the member name, the signature of the missing member, and additional exception information.(Inherited from MissingMemberException.) |
![]() | GetType() | Gets the runtime type of the current instance.(Inherited from Exception.) |
![]() | MemberwiseClone() | |
![]() | ToString() | Creates and returns a string representation of the current exception.(Inherited from Exception.) |
| Name | Description | |
|---|---|---|
![]() | ClassName | Holds the class name of the missing member.(Inherited from MissingMemberException.) |
![]() | MemberName | Holds the name of the missing member.(Inherited from MissingMemberException.) |
![]() | Signature | Holds the signature of the missing member.(Inherited from MissingMemberException.) |
| 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.) |
Normally a compilation error is generated if code attempts to access a nonexistent method of a class. MissingMethodException is designed to handle cases where an attempt is made to dynamically access a renamed or deleted method of an assembly that is not referenced by its strong name. MissingMethodException is thrown when code in a dependent assembly attempts to access a missing method in an assembly that was modified.
MissingMethodException uses the HRESULT COR_E_MISSINGMETHOD, that has the value 0x80131513.
For a list of initial property values for an instance of MissingMethodException, see the MissingMethodException constructors.
Note |
|---|
This exception is not included in the .NET for Windows Store apps or the , but it is thrown by some members that are. To catch the exception in that case, write a catch statement for MissingMemberException instead. |
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.
Imports System Imports System.Reflection Public Class App Public Shared Sub 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. GetType(App).InvokeMember("DoSomething", BindingFlags.Static Or BindingFlags.InvokeMethod, _ Nothing, Nothing, Nothing) Catch e As MissingMethodException ' Show the user that the DoSomething method cannot be called. Console.WriteLine("Unable to call the DoSomething method: {0}", e.Message) End Try 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. GetType(App).InvokeMember("AField", BindingFlags.Static Or BindingFlags.SetField, _ Nothing, Nothing, New [Object]() {5}) Catch e As MissingFieldException ' Show the user that the AField field cannot be accessed. Console.WriteLine("Unable to access the AField field: {0}", e.Message) End Try 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. GetType(App).InvokeMember("AnotherField", BindingFlags.Static Or BindingFlags.GetField, _ Nothing, Nothing, Nothing) Catch e As MissingMemberException ' 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) End Try End Sub End Class ' 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.
Available since 10
.NET Framework
Available since 1.1
Silverlight
Available since 2.0
Windows Phone Silverlight
Available since 7.0
Any public static ( Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.





