This documentation is archived and is not being maintained.

ServiceHost Constructor (Type, Uri[])

Initializes a new instance of the ServiceHost class with the type of service and its base addresses specified.

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

public ServiceHost(
	Type serviceType,
	params Uri[] baseAddresses


Type: System.Type
The type of hosted service.
Type: System.Uri[]
An array of type Uri that contains the base addresses for the hosted service.


serviceType is null.

Use this constructor when you have the service type and you can create new instances of it when needed, even when you need a singleton instance. Use the ServiceHost(Object, Uri[]) constructor instead only when you want the service host to use a specific singleton instance of the service.

This sample illustrates how to use the ServiceHost class to host a Windows Communication Foundation service:

ServiceHost serviceHost = new ServiceHost(typeof(CalculatorService), baseAddress);

.NET Framework

Supported in: 4, 3.5, 3.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows 7, Windows Vista SP1 or later, Windows XP SP3, 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.