Uri.EscapeUriString Method

Microsoft Silverlight will reach end of support after October 2021. Learn more.

Converts a URI string to its escaped representation.

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


Public Shared Function EscapeUriString ( _
    stringToEscape As String _
) As String
public static string EscapeUriString(
    string stringToEscape


Return Value

Type: System.String
A String that contains the escaped representation of stringToEscape.


Exception Condition

stringToEscape is nulla null reference (Nothing in Visual Basic).


The length of stringToEscape exceeds 32766 characters.


The EscapeUriString method converts all characters, except RFC 3986 reserved and unreserved characters, to their hexadecimal representation. All Unicode characters are converted to UTF-8 format before being escaped.

This method assumes that stringToEscape has no escape sequences in it.

The string is escaped according to RFC 3986. See this RFC for a definition of reserved and unreserved characters.

Use the EscapeUriString method to prepare an unescaped URI string to be a parameter to the Uri constructor.

Version Information


Supported in: 5, 4, 3

Silverlight for Windows Phone

Supported in: Windows Phone OS 7.1, Windows Phone OS 7.0

XNA Framework

Supported in: Xbox 360, Windows Phone OS 7.0


For a list of the operating systems and browsers that are supported by Silverlight, see Supported Operating Systems and Browsers.

See Also