MissingMemberException.Message 属性

定义

获取文本字符串,它显示类名、成员名称,以及缺失成员的签名。Gets the text string showing the class name, the member name, and the signature of the missing member.

public:
 virtual property System::String ^ Message { System::String ^ get(); };
public override string Message { get; }
member this.Message : string
Public Overrides ReadOnly Property Message As String

属性值

错误消息字符串。The error message string.

示例

下面的示例演示了 Message 的属性。The following example demonstrates the Message property. 此代码示例是为 MissingMemberException 类提供的更大示例的一部分。This code example is part of a larger example provided for the MissingMemberException class.

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.
    App::typeid->InvokeMember("AnotherField", BindingFlags::Static |
        BindingFlags::GetField, nullptr, nullptr, nullptr);
}
catch (MissingMemberException^ ex)
{
    // 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}",
        ex->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);
}
    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 

注解

如果在构造对象时未指定类名,则返回从基类继承的默认文本字符串。If the class name is not specified when the object is constructed, the default text string inherited from the base class is returned.

此属性将重写 MessageThis property overrides Message. 应本地化错误消息。The error message should be localized.

此属性是只读的。This property is read-only.

适用于

另请参阅