namespace comes in the list although reference is not added explicitly

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When we have to use a class which in some other namespace we need to add the reference to the corresponding dll file.But sometimes it comes automatically even if we have not added it explicitly.

Example: System.Data.SqlClient.
And in some cases we have to add reference ....like.......System.Data.OracleClient......Why?
Please share if any answer...

Posted 22-Mar-12 23:34pm

Himu from Orissa

Updated 23-Mar-12 7:56am

Shahin Khorshidnia

v4

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Shahin Khorshidnia 23-Mar-12 13:59pm

Pease dont type like "WHY?????????????????"
It seems nervous and a little insulting to the experts.
If you say "Why?", the experts can understand you.

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CPallini · Answer 1 · 2012-03-22T23:43:00

Solution 1

The reference to System.Data.Dll is there (was automatically added for you by Visual Studio) you may check that using the Project Properties menu item.

Posted 22-Mar-12 23:43pm

CPallini

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Himu from Orissa 23-Mar-12 5:52am

Why other namespaces dont come only some of them come. i mean why Syste.Data.OracleClient doesnt come like SqlClient

CPallini 23-Mar-12 5:57am

You have to ask Microsoft. I suspect they are a bit biased towards their own SQL Server. However, to be fair, that is just a default: you may remove that reference.

Shahin Khorshidnia · Answer 2 · 2012-03-23T00:10:00

Solution 2

Ok If it's a serious problem for you:

Visual Studio is a little intelligent and decides about required and most common refrences.
Not to mention the fact that System.Data.SqlClient is comming form an embedded library. But some dll files are user defined!

Of course, you are able to create a project and add all your desired refereces and then export it as Project Template. Thereafter, you can access to the refrences across the VS.

Posted 23-Mar-12 0:10am

Shahin Khorshidnia

Updated 23-Mar-12 0:29am

v5

Comments

Himu from Orissa 23-Mar-12 6:22am

if u dont mind can u say what is meant by "embeded libraray"........actually i m not a experienced .net programmer....dats why...

Shahin Khorshidnia 23-Mar-12 6:37am

I mean the System.Data.SqlClient namespace is a part of the System.Data.dll assembly, that is a part of ADO.Net. that is a part of .Net Framework.

Shahin Khorshidnia 23-Mar-12 6:45am

And Did it help?

Himu from Orissa 23-Mar-12 13:35pm

then System.Data.OracleClient is part of System.Data or not??????????

Shahin Khorshidnia 23-Mar-12 13:45pm

All System.Data are parts of ADO.Net. But as I said VS refrenced most common refrences.