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IDbConnection.ConnectionString Property

Gets or sets the string used to open a database.

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

string ConnectionString { get; set; }

Property Value

Type: System.String
A string containing connection settings.

The ConnectionString property can be set only while the connection is closed.

The following example creates an instance of a derived class, OleDbConnection, sets its ConnectionString, and displays its State.


public void CreateOleDbConnection(){
   OleDbConnection connection = new OleDbConnection();
   connection.ConnectionString = 
       "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=Northwind.mdb";
   Console.WriteLine("Connection State: " + connection.State.ToString());
}


.NET Framework

Supported in: 4, 3.5, 3.0, 2.0, 1.1, 1.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

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