asp.net - How do I know that a configuration is set up if I can't see it on my web.config file? -


I am walking through the series on " " (Scott Michael) Somewhere, they say:

... When you add chart control to a web page for the first time in your project, all of the above configurations add automatically to web-config. .

I have my web Checked on config, but I did not see anything. Therefore, I manually added them. Now, when I try to run the program, I get the following error:

... The server tag ' ASP: chart ' is ambiguous. Please modify the affiliate registration which is creating ambiguity and chooses a new tag prefix ...

  line 4:  

It seems that things are working the way the author has said but, How do I know if a configuration is set if I do it in my web Can not see in the config file? Do I need to run first in an error?

Thank you for helping.

This indicates that the page directive is not required if you proceed 4.0 version of control dll


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