CODEWITHSUNDEEP
c#htmlasp.netpost
WinFXGuy
WinFXGuy

Reputation: 1599

How to convert to html from byte[] array?

I am using a NameValueCollection to post to a website. The response array when converted to string contains "\r\n". I need pure html so I can use the string to display the content on a page. Here is the code:

 byte[] responseArray = myWebClient.UploadValues(SubmitURL, myNameValueCollection);
 string s = Encoding.ASCII.GetString(responseArray);

s contains something like this:

   \r\n    \r\n<!DOCTYPE html PUBLIC \"-//W3C//DTD XHTML 1.0 Transitional//EN\"\r\n\"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd\">\r\n\r\n\r\n<head>\r\n<title>Transaction Code Search Results</title>\r\n<link href=\"searchreference.css\" rel=\"stylesheet\" type=\"text/css\" />\r\n\r\n</head>\r\n\r\n<body topmargin=\"10\" leftmargin=\"10\">\r\n<table border=\"0\" width=\"100%\">\r\n  <tr>\r\n    <td width=\"70\" rowspan=\"2\" align=\"left\"><img src=\"images/WFLogo_62.gif\" alt=\"WF logo\" width=\"62\" height=\"62\" /></td>\r\n    <td height=\"40\">&nbsp;</td>\r\n    <td rowspan=\"2\"><form method=\"post\" action=\"trancodesearch3.asp\">\r\n      <div align=\"right\">\r\n        <input type=\"submit\" name=\"Search again\"\r\n      value=\"Search again\" />\r\n      </div>\r\n    </form></td>\r\n  </tr>\r\n  <tr>\r\n    <td valign=\"bottom\"><h1>Transaction Code Search Results</h1></td>\r\n  </tr>\r\n</table>\r\n\r\n<hr size=\"1\" class=\"redline\" />\r\n\r\n<table width=\"100%\" border=\"0\" align=\"
left\" cellpadding=\"6\"

Upvotes: 1

Views: 20912

Answers (2)

Avtandil Kavrelishvili
Avtandil Kavrelishvili

Reputation: 1757

You can do like this

var htmlString = System.Text.Encoding.Default.GetString(response); // reponse is byte[]

Upvotes: 0

Darin Dimitrov
Darin Dimitrov

Reputation: 1038890

You are looking the value of the s variable in Visual Studio's debugger. That's why you are seeing all those \r\n symbols. In reality those are just new lines contained in the string and your code of converting the byte array to a string using the Encoding.ASCII.GetString method is correct.

One minor adjustment you could adopt is the encoding itself. You could use the encoding that was calculated by the WebClient using the HTTP response headers:

byte[] responseArray = myWebClient.UploadValues(SubmitURL, myNameValueCollection);
string s = myWebClient.Encoding.GetString(responseArray);

So for example if the remote website supports a different encoding than ASCII, this would take it into account and you won't get data loss during the conversion (you know the ???? symbols where you expect to get some accented characters for example).

Upvotes: 6

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