Use parser and compiler in Asp.net

Ghost application classCreation process, which isAsp.netThe key to how to combine the compilation and interpretation technologies.

 

This mode has two important roles:ParserAndCompiler,

Parser Responsible for explanation Application script (Global. asax) When using Code behind Technical, Parser Will load the pre-compiled Assembly , That is Global. dll , And use Reflection Technology extracts the class information. Then createSource code, And finally call Compiler To compile the sourceCodeObtain the object instance.

 

 

Another point: MultipleHttpapplicationWhy can objects be shared?Cache, application stateObjectWhat about it?

The answer is simple. These two objects are Httpruntime Object Management, Httpcontext , Httpapplication The object is simply a transfer action. Appdomain There will be Httpruntime Object exists.

from-in-depth analysis of Asp.net component design