To use a class to store sql connection string

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i m doing a c# project and i have sql database,in each form i hv to connect to the database,how can i store the connection string in a class and use it as required

Posted 22-Nov-11 2:27am

Himu from Orissa

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jim lahey · Answer 1 · 2011-11-22T02:35:00

You don't have to. You can and should use the System.Configuration namespace:

C#

var connectionString = ConfigurationManager.ConnectionStrings["CONNECTIONSTRINGNAME"];

If you're intent on accessing this value through a class property, you can do the following:

C#

public class Foo
{
    public static string ConnectionString
    {
        get { return ConfigurationManager.ConnectionStrings["CONNECTIONSTRINGNAME"]; }
    }
}

Hamid Noahdi · Answer 2 · 2011-11-22T03:23:00

Solution 3

If you have a connection to SQL, the connection string will be saved in setting file, You can access it like this whenever you need it:

C#

Properties.Settings.Default.ConncectionString

Posted 22-Nov-11 3:23am

Hamid Noahdi

**Manoj K Bhoir** · Answer 3 · 2011-11-22T02:43:00

Solution 2

For Storing Connection String why are you using whole Class.
It requires Just one variable

C#

String ConnectionString="Enter Your Connection String Here";

After that Use that Variable Where you Want.:)

Posted 22-Nov-11 2:43am

Manoj K Bhoir

Comments

jim lahey 22-Nov-11 8:58am

Hmmm.. hard-coding connection strings, a big no-no.

[no name] 22-Nov-11 9:55am

Don't hard code connection strings

Himu from Orissa 22-Nov-11 11:47am

i have to write this things in all forms but i want to write only once and use it whenever required

Sergey Alexandrovich Kryukov 22-Nov-11 17:51pm

You are right, but the above code does allow you to do it "only once". It is very bad by other reasons though. This is the use of immediate constant which is a big no-no even if this is not a connection string, but with connection string this is a perfect crime. One will never be able to modify connection string, which makes the application perfectly ad-hoc. Also, this answer does not address a real problem, not answering the question.

Very bad; this answer gets my big fat 1.
--SA