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Uri.EscapeUriString Method

Converts a URI string to its escaped representation.

Namespace:  System
Assembly:  System (in System.dll)
public static string EscapeUriString(
	string stringToEscape
)

Parameters

stringToEscape
Type: System.String
The string to escape.

Return Value

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

stringToEscape is null.

UriFormatException

The length of stringToEscape exceeds 32766 characters.

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

By default, the EscapeUriString method converts all characters, except RFC 2396 unreserved characters, to their hexadecimal representation. If International Resource Identifiers (IRIs) or Internationalized Domain Name (IDN) parsing is enabled, the EscapeUriString method converts all characters, except for RFC 3986 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.

By default, the string is escaped according to RFC 2396. If International Resource Identifiers (IRIs) or Internationalized Domain Name (IDN) parsing is enabled, the string is escaped according to RFC 3986 and RFC 3987. See these RFCs for a definition of reserved and unreserved characters.

For more information on IRI support, see the Remarks section for the Uri class.

.NET Framework

Supported in: 4, 3.5, 3.0, 2.0

.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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