Sorting an Array of strings

Hi guys.
The code below reads in a string, splits the string into an array with every comma. Then alphabetically sorts the array and re-joins the string with a comma in between (and also removes that last comma afterwards).

 

static string 
alphabeticallyOrderString(string lineholderX)

{

string tmpLength = "";



string[] stringSplit = Regex.Split(lineholderX, ",");

Array.Sort(stringSplit);



lineholderX = "";

for (int i = 0; i < 
stringSplit.Length; i++)

{

if (stringSplit[i] != "")

{

tmpLength = "";

lineholderX += tmpLength + stringSplit[i] + ",";

}

}

char lastComma = ',';

lineholderX = lineholderX.TrimEnd(lastComma);

return lineholderX;

}

If my input string is " UE-CA , UF-BA , UF-AB , OF-AB ," , I want my output string to be " UE-CA , UF-AB , OF-AB , UF-BA". However my code below will output it as " OF-AB , UE-CA , UF-AB , UF-BA". The problem occurs with OF-AB f.
I would like to sort the array by ignoring the first letter of the each string, but still output the same result above.
I appreciate any help and thank you in advance. Also, I know my coding method might be questionable, but it sort of works.

Sorting an Array of strings - minor issue.

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