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A Beginner's Tutorial on String Comparison in C#

Usually in our applications when we want to compare two strings we use the equality operator. Under most scenarios this will work properly but still we should know what are the other ways we can do string comparisons and perhaps achieve better performance and results. So lets say I have a variable str and I want to check whether its value is equal to "Yes" or not.

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A N-Tier Architecture Sample with ASP.NET MVC3, WCF and Entity Framework

N-Tier software architecture can solve the following client/server system issues: scalability, security, fault tolerance and etc. In our previous article "N-Tier Architecture and Tips" we introduce the basic N-Tier architecture concepts and some practical tips. In this article, we try to elaborate a N-Tier architecture sample with ASP.NET MVC3, WCF and Entity Framework. In Java, usually there is a pre-defined way to achieve the N-Tier architecture: J2EE architecture, which uses session bean over entity bean for business and persistence layer, Java bean, servlet or JSP for the client presenter layer, Java Swing, HTML or applet as the client side. Therefore, for J2EE, different application are very likely implemented in very similar ways. However, in .NET, even though there are many tools and features available, there isn't any pre-defined way as J2EE does to guard how to implement the N-Tier architecture. As a result, there are too many inconsistent and existing ways to d…