modify connection string for a dataset

I am new to vb .net. Here is a problem i am faced with.

I am creating a windows form application using Visual Studio 2010. I created datasets from the IDE and the connection string points to a development database. Now I want to modify the connection string so it points to the production database. How shall i do this? I am quite lost. Thank you very much!
selfstudyAsked:
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Anthony PerkinsCommented:
How shall i do this? I am quite lost.
Don't hard-code your connections string.  Save your connection string in the configuration file.
selfstudyAuthor Commented:
thank you both for answering my question.

yes, the connection string is already in my app.config file. so i guess i just need to modify the connection string in app.config. Is it safe to embed the password in the app.config file? thanks.
Anthony PerkinsCommented:
Is it safe to embed the password in the app.config file?
That depends who can view it and what permissions are allowed for that user.  You can of course encrypt the password or the connection string for that matter if you prefer...

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