how to execute a code which is stored as string

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how to execute a code which is stored a s a string in c#?

example:
string str_test="MessageBox.Show("H World")";

i want to run the code which is stored in str_test??

thanks in advance guys..

Posted 6-Feb-12 0:24am

narutoluffy01

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manognya kota 6-Feb-12 6:26am

What is meant by run the code? do you want to execute any query? or You want to check what is the value stored in that variable?

BobJanova 6-Feb-12 7:26am

Christian's answer is technically correct. However, I must question why you want to do this in C#. It's usually a sign of bad design.

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Sergey Alexandrovich Kryukov · Answer 1 · 2012-02-06T19:17:00

Warning!

Unfortunately, the article Cristian referenced is all wrong. It has a fundamental flaw — a memory leak due to the fact that it is impossible to unload a loaded assembly. I added my comment to the article warning everyone against using it.

Also, one of the members insists that this article plagiarizes his work. Please look at the comment to the article: one of the commenter offered much better article: http://www.west-wind.com//presentations/dynamicCode/DynamicCode.htm[^].

Also, I explain the problem of unloading and describe the solution using System.AppDomain which is probably the only correct approach. Please see:
code generating using CodeDom[^],
Create WPF Application that uses Reloadable Plugins...[^].

—SA

Christian Graus · Answer 2 · 2012-02-06T00:28:00

Solution 1

Here[^] is a Code Project article on this.

Posted 6-Feb-12 0:28am

Christian Graus

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Sergey Alexandrovich Kryukov 7-Feb-12 1:20am

Cristian, perhaps you did not pay attention for the problems of this article. I checked it up and found totally unacceptable. (I did not vote, because this is not very much of your fault -- you just trusted the author, but you should not, after my warning.)

Please see my answer where I explain it and advise how to do it right.

Thank you very much.
--SA