Question

I have an int[]:

RXBuffer[0], RXBuffer[1],..., RXBuffer[9]

where each value represents an ASCII code, so 0x31 represents 1, 0x41 represents A.

How do I convert this to a 10 character string ?

So far I’ve tried Data = RxBuffer.ToString();. But it shows Data equals to System.Int32[] which is not what my data is.

How can I do this?

Answer 1

Assuming the “int array” is values in the 0-9 range (which is the only way that makes sense to convert an “int array” length 10 to a 10-character string) – a bit of an exotic way:

string s = new string(Array.ConvertAll(RXBuffer, x => (char)('0' + x)));

But pretty efficient (the char[] is right-sized automatically, and the string conversion is done just with math, instead of ToString()).

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Edit: with the revision that makes it clear that these are actually ASCII codes, it becomes simpler:

string s = new string(Array.ConvertAll(RXBuffer, x => (char)x));

Although frankly, if the values are ASCII (or even unicode) it would be better to store it as a char[]; this covers the same range, takes half the space, and is just:

string s = new string(RXBuffer);