我们在开发经常要使用Enum类型,今天我们用扩展方法来为Enum类型加入业务逻辑. 有以下的代码:
1: /// <summary>
2: /// StorageProviders
3: /// </summary>
4: [Serializable]
5: public enum StorageProviders
6: {
7: /// <summary>
8: /// LuceneIo
9: /// </summary>
10: LuceneIo = 0,
11: /// <summary>
12: /// LuceneVirtual
13: /// </summary>
14: LuceneVirtual = 1
15: }
然后写一个扩展方法:
1: /// <summary>
2: /// StorageProvidersExtensions
3: /// </summary>
4: public static class StorageProvidersExtensions
5: {
6: /// <summary>
7: /// Determines whether the specified provider is virtual.
8: /// </summary>
9: /// <param name="provider">The provider.</param>
10: /// <returns>
11: /// <c>true</c> if the specified provider is virtual; otherwise, <c>false</c>.
12: /// </returns>
13: public static bool IsVirtual(this StorageProviders provider)
14: {
15: return provider == StorageProviders.LuceneVirtual;
16: }
17: }
好了,让我们来看如何使用:
1: [Test]
2: public void TestEnumExtesnsionMethod()
3: {
4: StorageProviders storageProviders = StorageProviders.LuceneVirtual;
5: Assert.IsTrue(storageProviders.IsVirtual());
6: }
代码很简单,希望对您有开发有帮助。
作者:Petter Liu
出处:http://www.cnblogs.com/wintersun/
本文版权归作者和博客园共有,欢迎转载,但未经作者同意必须保留此段声明,且在文章页面明显位置给出原文连接,否则保留追究法律责任的权利。
该文章也同时发布在我的独立博客中-Petter Liu Blog。