Initializes a new instance of the UriBuilder class with the specified scheme, host, and port.
scheme is not a legal scheme name.
portNumber is less than 0 or greater than 65,535.
The UriBuilder instance is initialized with the Scheme property set to schemeName, the Host property set to hostName, and the Port property set to portNumber. The Path property is set to the slash character (/).
The following example creates a UriBuilder instance that contains the URI http://www.contoso.com:8080/.
UriBuilder myUri = new UriBuilder("http","www.contoso.com",8080);
For a list of the operating systems and browsers that are supported by Silverlight, see Supported Operating Systems and Browsers.