Export (0) Print
Expand All

Uri Constructor (Uri, Uri)

Note: This constructor is new in the .NET Framework version 2.0.

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

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

public Uri (
	Uri baseUri,
	Uri relativeUri
)
public Uri (
	Uri baseUri, 
	Uri relativeUri
)
public function Uri (
	baseUri : Uri, 
	relativeUri : Uri
)

Parameters

baseUri

An absolute Uri that is the base for the new Uri instance.

relativeUri

A relative Uri instance that is combined with baseUri.

Exception typeCondition

ArgumentException

baseUri is a null reference (Nothing in Visual Basic).

-or-

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 65534 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 new Uri instance by combining an absolute Uri instance, baseUri, with a relative Uri instance, relativeUri. If relativeUri is an absolute Uri instance (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.

This example creates an absolute Uri instance, absoluteUri, and a relative Uri instance, relativeUri. A new Uri instance, combinedUri, is then created from these two instances.

// Create an absolute Uri from a string.
Uri absoluteUri = new Uri("http://www.contoso.com/");

// Create a relative Uri from a string.  allowRelative = true to allow for 
// creating a relative Uri.
Uri relativeUri = new Uri("/catalog/shownew.htm?date=today", UriKind.Relative);
         
// Check whether the new Uri is absolute or relative.
if (!relativeUri.IsAbsoluteUri)
    Console.WriteLine("{0} is a relative Uri.", relativeUri);

// Create a new Uri from an absolute Uri and a relative Uri.
Uri combinedUri = new Uri(absoluteUri, relativeUri);
Console.WriteLine(combinedUri.AbsoluteUri);

Windows 98, Windows 2000 SP4, Windows Millennium Edition, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

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

.NET Framework

Supported in: 2.0

.NET Compact Framework

Supported in: 2.0

Community Additions

ADD
Show:
© 2014 Microsoft