GetDataSources Method
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SqlDataSourceEnumerator.GetDataSources Method ()


Retrieves a DataTable containing information about all visible SQL Server 2000 or SQL Server 2005 instances.

Namespace:   System.Data.Sql
Assembly:  System.Data (in System.Data.dll)

Public Overrides Function GetDataSources As DataTable

Return Value

Type: System.Data.DataTable

Returns a DataTable containing information about the visible SQL Server instances.

The table returned by this method contains the following columns, all of which contain strings:




Name of the server.


Name of the server instance. Blank if the server is running as the default instance.


Indicates whether the server is part of a cluster.


Version of the server (8.00.x for SQL Server 2000, and 9.00.x for SQL Server 2005).


Due to the nature of the mechanism used by SqlDataSourceEnumerator to locate data sources on a network, the method will not always return a complete list of the available servers, and the list might not be the same on every call. If you plan to use this function to let users select a server from a list, make sure that you always also supply an option to type in a name that is not in the list, in case the server enumeration does not return all the available servers. In addition, this method may take a significant amount of time to execute, so be careful about calling it when performance is critical.

The following console application retrieves information about all the visible SQL Server instances and displays the information in the console window.

Imports System.Data.Sql

Module Module1
  Sub Main()
    ' Retrieve the enumerator instance and then the data.
    Dim instance As SqlDataSourceEnumerator = _
    Dim table As System.Data.DataTable = instance.GetDataSources()

    ' Display the contents of the table.

    Console.WriteLine("Press any key to continue.")
  End Sub

  Private Sub DisplayData(ByVal table As DataTable)
    For Each row As DataRow In table.Rows
      For Each col As DataColumn In table.Columns
        Console.WriteLine("{0} = {1}", col.ColumnName, row(col))
  End Sub
End Module

.NET Framework
Available since 2.0
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