languages as the data type might be different or even if they employ same kind of data types their size might vary. An int uses 2 bytes in C++ while it uses 4 bytes in Java. This may lead to serious problems in multiple language domains. CLS has been designed as solution for this problem
The Microsoft .NET Framework is built on the type system that the runtime defines. It supplies built-in primitive types as well as other types that you can use or derive from when building your component or application. The primary design challenge in creating a common language specification is choosing the right size subset large enough that it is properly expressive and small enough that all languages can reasonably, accommodate it, Because the CLS is about language interoperability, its rules apply only to "externally visible" items. The CLS assumes that language interoperability is important only across the assembly boundary that is, within a single assembly there are no restrictions as to the programming techniques that are used.
A type is CLS-compliant if all its publicly accessible parts (those classes, interfaces, methods, fields, properties, and events that are available to code executing in another assembly) either have
signatures composed only of CLS-compliant types, or are specifically marked as not CLS-compliant
A tool is a CLS-compliant consumer tool if it can completely use any CLS-compliant type. That is, call any CLS-compliant method; create an instance of any type CLS-compliant, read and modify any CLS compliant field, etc. A tool is a CLS-compliant extender tool if it is a consumer tool and, in addition, can extend any (non-sealed) CLS-compliant base class, can implement any CLS-complaint interface, and can place any CLS-compliant custom attribute on all appropriate elements of metadata. It must also be able to define new CLS-complaint interfaces.
While many things contribute to exclude a CTS concept from the CLS, one should be explicitly called out: any construct that would make it impossible to rapidly verify code is excluded from
the CLS. This allows all CLS-compliant languages to produce verifiable code if they so choose.
Language compilers and tools expose the runtime's functionality in ways that are intended to be useful and intuitive to their developers. This means that some features of the runtime might be more noticeable in one environment than in the other. Therefore, how you experience the runtime depends on which language compilers or tools you use. Let us now discuss and understand Unified programming classes here.
Understanding ASP.NET in Detail
ASP.NET (or ASP+) takes advantage of the common language runtime and services framework to
provide a reliable, robust, scalable environment for Web applications. It provides services, such as
state management services and higher-level programming models, such as ASP+ Web Forms and
