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Uri Constructor (Uri, String)

Initializes a new instance of the Uri class based on the specified base URI and relative URI string.

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

public Uri(
	Uri baseUri,
	string relativeUri
)

Parameters

baseUri
Type: System.Uri
The base URI.
relativeUri
Type: System.String
The relative URI to add to the base URI.

ExceptionCondition
ArgumentNullException

baseUri is null.

ArgumentOutOfRangeException

baseUri is not an absolute Uri instance.

UriFormatException

The URI formed by combining baseUri and relativeUri is empty or contains only spaces.

-or-

The scheme specified in the URI formed by combining baseUri and relativeUri is not valid.

-or-

The URI formed by combining baseUri and relativeUri contains too many slashes.

-or-

The password specified in the URI formed by combining baseUri and relativeUri is not valid.

-or-

The host name specified in the URI formed by combining baseUri and relativeUri is not valid.

-or-

The file name specified in the URI formed by combining baseUri and relativeUri is not valid.

-or-

The user name specified in the URI formed by combining baseUri and relativeUri is not valid.

-or-

The host or authority name specified in the URI formed by combining baseUri and relativeUri cannot be terminated by backslashes.

-or-

The port number specified in the URI formed by combining baseUri and relativeUri is not valid or cannot be parsed.

-or-

The length of the URI formed by combining baseUri and relativeUri exceeds 65519 characters.

-or-

The length of the scheme specified in the URI formed by combining baseUri and relativeUri exceeds 1023 characters.

-or-

There is an invalid character sequence in the URI formed by combining baseUri and relativeUri.

-or-

The MS-DOS path specified in uriString must start with c:\\.

This constructor creates a Uri instance by combining the baseUri and the relativeUri. If relativeUri is an absolute URI (containing a scheme, host name, and optionally a port number), the Uri instance is created using only relativeUri.

This constructor does not ensure that the Uri refers to an accessible resource.

The following example creates a new instance of the Uri class by combining the relative URIs http://www.contoso.com and catalog/showew.htm to form the absolute URI http://www.contoso.com/catalog/shownew.htm.


Uri baseUri = new Uri("http://www.contoso.com");
 Uri myUri = new Uri(baseUri, "catalog/shownew.htm");

Console.WriteLine(myUri.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

Portable Class Library

Supported in: Portable Class Library

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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