什么是C#中的DispId注释？

发布时间：2020-12-15 06:29:03 所属栏目：百科来源：网络整理

导读：例如 public interface IWMPSettings [DispId(101)] bool autoStart { get; set; } [DispId(102)] int balance { get; set; } 它是有用的还是只是自动生成编译器？解决方法总之,是的,它是有用的,但只有COM发送： The DispIdAttribute(来自MSDN)： Specifie

例如

public interface IWMPSettings

        [DispId(101)]
        bool autoStart { get; set; }
        [DispId(102)]
        int balance { get; set; }

它是有用的还是只是自动生成编译器？

解决方法

总之,是的,它是有用的,但只有COM发送：

The DispIdAttribute(来自MSDN)：

Specifies the COM dispatch identifier (DISPID) of a method,field,or property.

This attribute contains the DISPID for the method,or property it describes. Unique DISPIDs are typically assigned by the common language runtime,but you can use this attribute to assign a specific DISPID to a method. When importing a type library,this attribute is applied to all methods with assigned DISPIDs. This ensures that any managed implementation of the same method retains the same DISPID if exposed to COM.

（编辑：李大同）

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