Does C have an equivalent to JavaScript s encodeURIComponent

Question

In JavaScript   encodeURIComponent    v        C2 A9 E2 88 9A    Is there an equivalent for C  applications  For escaping HTML characters I used   txtOut Text   Regex Replace txtIn Text      u0080- uFFFF        m   gt     amp        int m Value 0   ToString             But I m not sure how to convert the match to the correct hexadecimal format that JS uses  For example this code   txtOut Text   Regex Replace txtIn Text      u0080- uFFFF        m   gt         String Format   0 x      int m Value 0        Returns   a9 221a  for    v  instead of   C2 A9 E2 88 9A   It looks like I need to split the string up into bytes or something   Edit  This is for a windows app  the only items available in System Web are  AspNetHostingPermission  AspNetHostingPermissionAttribute  and AspNetHostingPermissionLevel

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HttpUtility HtmlEncode   Decode HttpUtility UrlEncode   Decode  You can add a reference to the System Web assembly if it s not available in your project

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System Uri EscapeUriString   didn t seem to do anything  but System Uri EscapeDataString   worked for me

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You can use the Server object in the System Web namespace  Server UrlEncode  Server UrlDecode  Server HtmlEncode  and Server HtmlDecode   Edit  poster added that this was a windows application and not a web one as one would believe   The items listed above would be available from the HttpUtility class inside System Web which must be added as a reference to the project

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HttpUtility HtmlEncode   Decode HttpUtility UrlEncode   Decode  You can add a reference to the System Web assembly if it s not available in your project

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For a Windows Store App  you won t have HttpUtility  Instead  you have   For an URI  before the        System Uri EscapeUriString  example com Stack Overflow       -   example com Stack 20Overflow        For an URI query name or value  after the        System Uri EscapeDataString  Stack Overflow      -   Stack 20Overflow 2B 2B     For a x-www-form-urlencoded query name or value  in a POST content    System Net WebUtility UrlEncode  Stack Overflow      -   Stack Overflow 2B 2B

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You can use the Server object in the System Web namespace  Server UrlEncode  Server UrlDecode  Server HtmlEncode  and Server HtmlDecode   Edit  poster added that this was a windows application and not a web one as one would believe   The items listed above would be available from the HttpUtility class inside System Web which must be added as a reference to the project

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Try Server UrlEncode    or System Web HttpUtility UrlEncode   for instances when you don t have access to the Server object  You can also use System Uri EscapeUriString   to avoid adding a reference to the System Web assembly

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You can use the Server object in the System Web namespace  Server UrlEncode  Server UrlDecode  Server HtmlEncode  and Server HtmlDecode   Edit  poster added that this was a windows application and not a web one as one would believe   The items listed above would be available from the HttpUtility class inside System Web which must be added as a reference to the project

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Uri EscapeDataString or HttpUtility UrlEncode is the correct way to escape a string meant to be part of a URL   Take for example the string  Stack Overflow     HttpUtility UrlEncode  Stack Overflow   --   Stack Overflow  Uri EscapeUriString  Stack Overflow   --   Stack 20Overflow  Uri EscapeDataString  Stack    Overflow   --  Also encodes     to   2b  ---- Stack 20 2B 20 20Overflow   Only the last is correct when used as an actual part of the URL  as opposed to the value of one of the query string parameters

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System Uri EscapeUriString   didn t seem to do anything  but System Uri EscapeDataString   worked for me

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I tried to do full compatible analog of javascript s encodeURIComponent for c  and after my 4 hour experiments I found this  c  CODE   string a           amp       some text here                    a   System Web HttpUtility UrlEncode a   a   a Replace        20      the result is    40 23 24 25 5e 26     2b 20some 20text 20here 20 d0 b0 d0 bb d0 b8 20 d0 bc d0 b0 d0 bc d0 b5 d0 b4 d0 be d0 b2 20 d0 b1 d0 b0 d0 ba d1 83  After you decode It with Javascript s decodeURLComponent     you will get this          amp       some text here                   Thank You for attention

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Try Server UrlEncode    or System Web HttpUtility UrlEncode   for instances when you don t have access to the Server object  You can also use System Uri EscapeUriString   to avoid adding a reference to the System Web assembly

User · Answer

Uri EscapeDataString or HttpUtility UrlEncode is the correct way to escape a string meant to be part of a URL   Take for example the string  Stack Overflow     HttpUtility UrlEncode  Stack Overflow   --   Stack Overflow  Uri EscapeUriString  Stack Overflow   --   Stack 20Overflow  Uri EscapeDataString  Stack    Overflow   --  Also encodes     to   2b  ---- Stack 20 2B 20 20Overflow   Only the last is correct when used as an actual part of the URL  as opposed to the value of one of the query string parameters

User · Answer

HttpUtility HtmlEncode   Decode HttpUtility UrlEncode   Decode  You can add a reference to the System Web assembly if it s not available in your project

User · Answer

Try Server UrlEncode    or System Web HttpUtility UrlEncode   for instances when you don t have access to the Server object  You can also use System Uri EscapeUriString   to avoid adding a reference to the System Web assembly

User · Answer

I tried to do full compatible analog of javascript s encodeURIComponent for c  and after my 4 hour experiments I found this  c  CODE   string a           amp       some text here                    a   System Web HttpUtility UrlEncode a   a   a Replace        20      the result is    40 23 24 25 5e 26     2b 20some 20text 20here 20 d0 b0 d0 bb d0 b8 20 d0 bc d0 b0 d0 bc d0 b5 d0 b4 d0 be d0 b2 20 d0 b1 d0 b0 d0 ba d1 83  After you decode It with Javascript s decodeURLComponent     you will get this          amp       some text here                   Thank You for attention

User · Answer

You can use the Server object in the System Web namespace  Server UrlEncode  Server UrlDecode  Server HtmlEncode  and Server HtmlDecode   Edit  poster added that this was a windows application and not a web one as one would believe   The items listed above would be available from the HttpUtility class inside System Web which must be added as a reference to the project

User · Answer

For a Windows Store App  you won t have HttpUtility  Instead  you have   For an URI  before the        System Uri EscapeUriString  example com Stack Overflow       -   example com Stack 20Overflow        For an URI query name or value  after the        System Uri EscapeDataString  Stack Overflow      -   Stack 20Overflow 2B 2B     For a x-www-form-urlencoded query name or value  in a POST content    System Net WebUtility UrlEncode  Stack Overflow      -   Stack Overflow 2B 2B

User · Answer

Try Server UrlEncode    or System Web HttpUtility UrlEncode   for instances when you don t have access to the Server object  You can also use System Uri EscapeUriString   to avoid adding a reference to the System Web assembly

User · Answer

HttpUtility HtmlEncode   Decode HttpUtility UrlEncode   Decode  You can add a reference to the System Web assembly if it s not available in your project

[c#] Does C# have an equivalent to JavaScript's encodeURIComponent()?

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