Click here to Skip to main content
15,905,875 members
Articles / Database Development / SQL Server

How to enum SQL Server instances in network

Rate me:
Please Sign up or sign in to vote.
4.96/5 (9 votes)
13 Feb 2013CPOL 61.2K   2.5K   13   13
This tip is desired for those who want to list all available SQl Server instances that are in a network.


Sometimes we need to list all available SQL Server instances in LAN to gain information about them. For example, it's useful when we need to write a custom installer for our database.

This tip shows us how to solves this problem. 

Using the code  

The code is as simple as it's possible Wink | ;)

What you need to test the code? 

  1. Create new project (windows application), 
  2. Add: 
    • 1 Label
    • 1 ComboBox (change it name to: CmbSQLInstance
    • 1 DataGridView  (change it name to: DGVSQLInstances)

Before you start coding, you need to set reference to  System.Data.Sql namespace (as is described here:

'declare variables
Dim dt As Data.DataTable = Nothing, dr As Data.DataRow = Nothing

    'get sql server instances in to DataTable object
    dt = Sql.SqlDataSourceEnumerator.Instance.GetDataSources()

    'load data in to ComboBox
    For Each dr In dt.Rows
    'load data in to DataGridView
    Me.DGVSQLInstances.DataSource = dt

Catch ex As System.Data.SqlClient.SqlException
    MsgBox(ex.Message, MsgBoxStyle.Exclamation, "Error!")

Catch ex As Exception
    MsgBox(ex.Message, MsgBoxStyle.Exclamation, "Error!")

    'clean up ;)
    dr = Nothing
    dt = Nothing
End Try 



  • 2013/02/11 - First version.
  • 2013/02/13 - source files added


This article, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

Written By
Team Leader
Poland Poland
I'm a lawyer, teacher/trainer and author of VBA programming book (only polish version). Programming is my hobby and the source of extra earnings!
  1. C#
  2. SQL
  3. Linq
  5. XML & XSL
  6. Python
  7. JCL

If you want to contact me... find me on LinkedIn.

Comments and Discussions

QuestionNot guaranteed to work always Pin
rajeshrdas20083-Mar-16 18:25
rajeshrdas20083-Mar-16 18:25 
AnswerRe: Not guaranteed to work always Pin
Maciej Los3-Mar-16 19:59
mveMaciej Los3-Mar-16 19:59 
GeneralMy vote of 5 Pin
Sergey Alexandrovich Kryukov13-Aug-14 6:22
mvaSergey Alexandrovich Kryukov13-Aug-14 6:22 
GeneralRe: My vote of 5 Pin
Maciej Los13-Aug-14 10:25
mveMaciej Los13-Aug-14 10:25 
QuestionEnum also Available Databases Pin
Member 1094242312-Jul-14 13:17
Member 1094242312-Jul-14 13:17 
AnswerRe: Enum also Available Databases Pin
Maciej Los12-Jul-14 22:17
mveMaciej Los12-Jul-14 22:17 
GeneralMy vote of 5 Pin
Adarsh chauhan14-Aug-13 2:12
professionalAdarsh chauhan14-Aug-13 2:12 
Nice and to the point.. Smile | :)
GeneralRe: My vote of 5 Pin
Maciej Los14-Aug-13 2:19
mveMaciej Los14-Aug-13 2:19 
QuestionNice.. Pin
Raja Sekhar S1-Aug-13 1:47
Raja Sekhar S1-Aug-13 1:47 
AnswerRe: Nice.. Pin
Maciej Los1-Aug-13 1:49
mveMaciej Los1-Aug-13 1:49 
GeneralMy vote of 5 Pin
_Vitor Garcia_26-Feb-13 4:56
_Vitor Garcia_26-Feb-13 4:56 
AnswerRe: My vote of 5 Pin
Maciej Los2-Mar-13 1:10
mveMaciej Los2-Mar-13 1:10 
GeneralRe: My vote of 5 Pin
_Vitor Garcia_3-Mar-13 22:37
_Vitor Garcia_3-Mar-13 22:37 

General General    News News    Suggestion Suggestion    Question Question    Bug Bug    Answer Answer    Joke Joke    Praise Praise    Rant Rant    Admin Admin   

Use Ctrl+Left/Right to switch messages, Ctrl+Up/Down to switch threads, Ctrl+Shift+Left/Right to switch pages.