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Uri Constructor (Uri, String, Boolean)

NOTE: This constructor is now obsolete.

Initializes a new instance of the Uri class based on the specified base and relative URIs, with explicit control of character escaping.

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

[ObsoleteAttribute("The constructor has been deprecated. Please new Uri(Uri, string). The dontEscape parameter is deprecated and is always false. http://go.microsoft.com/fwlink/?linkid=14202")] 
public Uri (
	Uri baseUri,
	string relativeUri,
	bool dontEscape
)
/** @attribute ObsoleteAttribute("The constructor has been deprecated. Please new Uri(Uri, string). The dontEscape parameter is deprecated and is always false. http://go.microsoft.com/fwlink/?linkid=14202") */ 
public Uri (
	Uri baseUri, 
	String relativeUri, 
	boolean dontEscape
)
ObsoleteAttribute("The constructor has been deprecated. Please new Uri(Uri, string). The dontEscape parameter is deprecated and is always false. http://go.microsoft.com/fwlink/?linkid=14202") 
public function Uri (
	baseUri : Uri, 
	relativeUri : String, 
	dontEscape : boolean
)

Parameters

baseUri

The base URI.

relativeUri

The relative URI to add to the base URI.

dontEscape

true if uriString is completely escaped; otherwise, false. See Remarks.

Exception typeCondition

ArgumentNullException

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

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

The dontEscape parameter controls whether reserved characters are translated into escape sequences. This parameter should be set to true only if you are certain that all reserved characters in the URI have been escaped. Setting the value to true for a URI that has not been completely escaped can cause unexpected behavior. It is strongly recommended that you always set this parameter to false. If dontEscape is set to false, the constructor escapes any reserved characters by checking that all occurrences of percent (%) are followed by a valid escape sequence. If the character sequence following a percent is not valid, the percent is replaced by %25.

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

Notes to Callers Because of security concerns, your application should not call this constructor with URI strings from untrusted sources and with dontEscape set to true. Alternately, you can check a URI string for validity by calling the IsWellFormedOriginalString method prior to calling this constructor.

The following example creates a new instance of the Uri class by combining the relative URIs http://www.contoso.com and Hello%20World.htm to form an absolute URI.

Uri baseUri = new Uri("http://www.contoso.com");
Uri myUri = new Uri(baseUri, "Hello%20World.htm",false);
   

Uri baseUri = new Uri("http://www.contoso.com");
Uri myUri = new Uri(baseUri, "Hello%20World.htm", false);

var baseUri : Uri = new Uri("http://www.contoso.com");
var myUri : Uri = new Uri(baseUri, "Hello%20World.htm",false);

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: 1.0, 1.1
Obsolete (compiler warning) in 2.0

.NET Compact Framework

Supported in: 1.0
Obsolete (compiler warning) in 2.0
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