using System; [AttributeUsage(AttributeTargets.Class | AttributeTargets.Method)] public class MyCustomAttribute : Attribute { public string Description { get; } public MyCustomAttribute(string description) { Description = description; } } C# Copy How to Apply Custom Attributes? You can apply custom...
[LengthValidateAttribute(16,100)]//追加对邮箱的长度检查publicstringEMail {get;set; }//可以对属性字段使用[CustomAttribute(description:"属性示例", remark:"属性特性")] [LengthValidateAttribute(6,9)]//追加对电话号码的长度检查publicstringPhoneNumber {get;set; }//可以对方法使用[CustomAttribute(descript...
The custom C++ attribute will cause information to be placed into the type library. You will need a tool that reads the custom value from type library.The custom attribute has the same functionality as the custom MIDL attribute.Requirements...
定制attribute之后,主要在于检测。主要的方法有System.Type的IsDefined方法,System.Attribute类定义的三个静态方法用以获取与一个目标关联的attribute:IsDefined,GetCustomAttributes(用于将AllowMultiple设为true的attribute,或者列出所有已应用的attribute)和GetCustomAttribute(通常用于将AlloMultiple设为false的attribute). 检测...
(CharacterProperty).GetFields();foreach(varfieldInfoinf){if(fieldInfo.Name.Equals(p.ToString())){varattributes=fieldInfo.GetCustomAttributes();foreach(varattributeinattributes){varpropertyName=(attributeasPropertyDescAttribute)?.Desc;_propertyName[p]=propertyName;}}}if(_propertyName.TryGetValue(p,out...
属性(attribute):实体所具有的某一特性称为属性。 码(key):唯一标识实体的属性集称为码。 实体型(entity type):用实体名及其属性名集合来抽象和刻画同类实体,称为实体型。 实体集(entity set):同一实体型的集合称为实体集。 联系(relationship):实体之间的联系通常是指不同实体集之间的联系。 模式(schema):模式...
属性(attribute):实体所具有的某一特性称为属性。 码(key):唯一标识实体的属性集称为码。 实体型(entity type):用实体名及其属性名集合来抽象和刻画同类实体,称为实体型。 实体集(entity set):同一实体型的集合称为实体集。 联系(relationship):实体之间的联系通常是指不同实体集之间的联系。 模式(schema):模式...
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Typetype=typeof(MyAwesomeClass);varattributes=type.GetCustomAttributes(typeof(AuthorInfoAttribute),false);if(attributes.Length>0&&attributes[0]isAuthorInfoAttributeauthorInfo){Console.WriteLine($"作者: {authorInfo.Author}, 版本号: {authorInfo.Version}");}//上面的代码将打印MyAwesomeClass类的特性,展...
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