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I want to convert from Unicode to its original format UTF8 I think and it could be arabic like below. The user types some unicode text and when he clicks on convert it'll be converted to the original format like below :

string unicode ="\u0633\u0637\u0648\u0631 \u0639\u0628\u0631 \u0627\u0644\u0623\u064a\u0627\u0645 1";

output must equal the original format:

سطور عبر الأيام 1 | شمس الدين خ

i used[^]

as a reference to me but the output is the same like the input nothing happened no conversion has been happened could anyone advice me what's wrong?

What I have tried:

private void btn_convert_Click(object sender, EventArgs e)
            string unicodestring = txt_unicode.Text;
            // Create two different encodings.
            Encoding ascii = Encoding.ASCII;
            Encoding unicode = Encoding.Unicode;
            //Encoding Utf8 = Encoding.UTF8;

     // // Convert the string into a byte array.
            byte[] unicodeBytes = unicode.GetBytes(unicodestring);

     // // Perform the conversion from one encoding to the other.
      byte[] ascibytes = Encoding.Convert(unicode,ascii,unicodeBytes);

     // // Convert the new byte[] into a char[] and then into a string.
      char[] asciiChars = new char[ascii.GetCharCount(ascibytes, 0, ascibytes.Length)];
      ascii.GetChars(ascibytes, 0, ascibytes.Length, asciiChars, 0);
     string asciiString = new string(asciiChars);

     // // Display the strings created before and after the conversion.
     //MessageBox.Show("Original string is"+unicodeString);
     MessageBox.Show("Ascii converted string is" + asciiString);
Updated 20-Jun-18 1:40am
Richard MacCutchan 22-Jan-14 7:16am
You cannot use GetBytes on a string in that form. You must first convert all the escape sequences to their numeric values to make a 'real' Unicode string.
PIEBALDconsult 23-Mar-18 23:12pm
I don't see what the issue is. Why would any conversion be required? When I plug that statement into VS I get:
سطور عبر الأيام 1

You can use this function:

I test it for you:

string unicode = "\u0633\u0637\u0648\u0631 \u0639\u0628\u0631 \u0627\u0644\u0623\u064a\u0627\u0645 1";
            string str = System.Uri.UnescapeDataString(unicode);

result (str content) is:
سطور عبر الأيام 1
Akhand Jyoti 3-Jan-18 6:10am
hey i have tried this code work for that particular unicode srting.
I have a unicode string like.
string str="~\0\u0016?\0\u0013?\0AT??\\?\u0001#yfgyhvkh#?";
after doing the above operation i am not getting the converted string .please help me .Thank u so much in advance.
I should receive the data like:
7E 00 15 90 00 13 A2 00 41 54 EC 8E 5C 9F 01 23 31 32 23 31 32 23 52 23 0B
Simply use:

var output = System.Net.WebUtility.HtmlDecode(text);
Maciej Los 20-Jun-18 8:50am
4 years too late!
Amir No-Family 12-Jul-18 6:29am
better late than never!
Finally i get the solution if anyone need some reference

private string convert_from_unicode(string str,char c)


    string rtstr = "";
    for (int i=2;i< str.Length; i+=6)
            string str1 = str.Substring(i, 4);
            c = (char)Int16.Parse(str1, System.Globalization.NumberStyles.HexNumber);
            rtstr += c;
    return rtstr;

private void btn_convert_Click(object sender, EventArgs e)

    char f = ' ';

    txt_result.Text = convert_from_unicode(txt_unicode.Text, f);


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