SqlConnection.State Property
.NET Framework 4.5
Indicates the state of the SqlConnection during the most recent network operation performed on the connection.
Namespace: System.Data.SqlClient
Assembly: System.Data (in System.Data.dll)
Returns an ConnectionState enumeration indicating the state of the SqlConnection. Closing and reopening the connection will refresh the value of State.
Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.