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public:
static System::String ^ UrlEncode(System::String ^ value);
public static string UrlEncode (string value);
public static string? UrlEncode (string? value);
static member UrlEncode : string -> string
Public Shared Function UrlEncode (value As String) As String
Parameters
Remarks
If characters such as blanks and punctuation are passed in an HTTP stream, they might be misinterpreted at the receiving end. URL encoding replaces characters that are not allowed in a URL with character-entity equivalents consisting of hexadecimal escape sequences. The converted string is expected to conform to the UTF-8 format.
URL encoding replaces all character codes except for letters, numbers, and the following punctuation characters:
-
(minus sign)
_
(underscore)
.
(period)
!
(exclamation point)
*
(asterisk)
(
and
)
(opening and closing parentheses)
Each ' ' (space) character is converted to a
+
(plus) character.
Replacing ' ' (space) with a '+' (plus) sign is expected only in query part of URI (by convention, not by standard) or in
application/x-www-form-urlencoded
HTTP content. Moreover, the above mentioned list of characters that are
not
replaced does not correspond neither to
URL specification
nor URI
RFC 3986
. Use
EscapeDataString
for RFC compliant transformation.
For example, when embedded in a block of text to be transmitted in a URL, the characters
<
and
>
are encoded as
%3c
and
%3e
.
The
UrlDecode
method reverses the encoding.
