Where should i write Connectionstring in C# application while using Library for Connection?

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I am using Library for Connection in my project named DBConnection and i am calling this library in another library and this 2 nd library is called in windows application
i. e. 3 tier architecture. So the problem is how can add App.config in library and how to read that connectionstring in the class in Library.

My project dependancies as below.
DBConnection --To-- DAL library -- To-- BAL --To -- MyApplication

I am new to work on this so please give me solution.
Also i want to add my sqlserver database in Application data folder for deployement so again there is problem that how it is connected to server on client side and is it automatically use my connecion?

please somebody help me.

Thanks in Advance

Posted 2-Oct-11 10:05am

Girish Deshmukh

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2 solutions

Solution 2

App.Config is a location where you could store the connection string.
Read more about it here[^].

Posted 2-Oct-11 18:57pm

Abhinav S

Comments

Uday P.Singh 3-Oct-11 1:02am

Agree my 5!

Abhinav S 3-Oct-11 1:06am

Thanks Uday.

koolprasad2003 3-Oct-11 1:14am

Good post Abhinav, +5

Abhinav S 3-Oct-11 1:17am

Thanks.

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Mehdi Gholam · Accepted Answer · 2011-10-02T18:21:00

Solution 1

Configuration information is usually set on the applications startup, and because it is changed often this is put at the highest level, ie the application executable.

You can also read configuration information at the dll level via file access, and your application can have no knowledge.

The simplest way to read config data is Dataset.ReadXml().

Posted 2-Oct-11 18:21pm

Mehdi Gholam

Comments

Abhinav S 3-Oct-11 0:55am

Good answer. 5.