8 byte[] to string?

I have a byte[] array that is loaded from a file that I happen to known contains UTF-8. In some debugging code, I need to convert it to a string. Is there a one liner that will do this?

Under the covers it should be just an allocation and a memcopy, so even if it is not implemented, it should be possible.

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string result = System.Text.Encoding.UTF8.GetString(byteArray);

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There're at least four different ways doing this conversion.

Encoding's GetString
, but you won't be able to get the original bytes back if those bytes have non-ASCII characters.

BitConverter.ToString
The output is a "-" delimited string, but there's no .NET built-in method to convert the string back to byte array.

Convert.ToBase64String
You can easily convert the output string back to byte array by using Convert.FromBase64String .
Note: The output string could contain '+', '/' and '='. If you want to use the string in a URL, you need to explicitly encode it.

HttpServerUtility.UrlTokenEncode
You can easily convert the output string back to byte array by using HttpServerUtility.UrlTokenDecode . The output string is already URL friendly! The downside is it needs System.Web assembly if your project is not a web project.

A full example:

byte[] bytes = { 130, 200, 234, 23 }; // A byte array contains non-ASCII (or non-readable) characters

string s1 = Encoding.UTF8.GetString(bytes); // ���
byte[] decBytes1 = Encoding.UTF8.GetBytes(s1);  // decBytes1.Length == 10 !!
// decBytes1 not same as bytes
// Using UTF-8 or other Encoding object will get similar results

string s2 = BitConverter.ToString(bytes);   // 82-C8-EA-17
String[] tempAry = s2.Split('-');
byte[] decBytes2 = new byte[tempAry.Length];
for (int i = 0; i < tempAry.Length; i++)
    decBytes2[i] = Convert.ToByte(tempAry[i], 16);
// decBytes2 same as bytes

string s3 = Convert.ToBase64String(bytes);  // gsjqFw==
byte[] decByte3 = Convert.FromBase64String(s3);
// decByte3 same as bytes

string s4 = HttpServerUtility.UrlTokenEncode(bytes);    // gsjqFw2
byte[] decBytes4 = HttpServerUtility.UrlTokenDecode(s4);
// decBytes4 same as bytes

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当你不知道编码时从字节数组转换为字符串的一般解决方案：

static string BytesToStringConverted(byte[] bytes)
{
    using (var stream = new MemoryStream(bytes))
    {
        using (var streamReader = new StreamReader(stream))
        {
            return streamReader.ReadToEnd();
        }
    }
}

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