如何在C＃中的字符串中使用多个反向逗号按字符串拆分字符串

Question

How to split a string by "," where " is part of string to split by.

         string[] stringSeparator = new string[] {","};
            while (!sr.EndOfStream) {
                string strline = sr.ReadLine();
                string[] _values = strline.Split(stringSeparator, StringSplitOptions.None);

                for (int entry = 0; entry < _values.Length; entry++) {
                    MessageBox.Show(_values[entry]);
                }
            }

Tried to use "","" but it seems to return whole line instead of just part of it.

Edit:

String to split (example):

First line:

"24446022020000000174234443,""PLN"",""NVESTMENT SOMETHING "",""2011-03-06"",""2011-03-07"",""-25,21"""

2nd line:

"1,""E"",""2011-03-04"",""2011-03-07"",""2011-03-07"",""1,00"",""0000000100000001"",""UZNANIE sdsd ELIXIR"",""45555550040000001244580001"",""Some Client (E)KLIENT NR:0000000100000001"",""example something"",""73116022447246000100000001"""

Answer 1

If you want to represent literal quotation marks in a string, you need to escape it (or double it in a verbatim string literal).

ie,

new string[] { "\",\"" };
//or
new string[] { @""",""" };

---

As for why you're getting the values you were getting, consider the ways you were typing it:

string[] stringSeparator = new string[] { "," };

Is a string array containing a single string, just a comma , . It will split but you probably didn't get the values you were expecting.

string[] stringSeparator = new string[] { "","" };

Is a string array containing a two strings, both empty (blank) strings. Perhaps it would be clearer if it was typed as: new string[] { "", "" }; . The Split() function ignores empty string delimiters so it doesn't split anything.

string[] stringSeparator = new string[] { "\",\"" };

Is a string array containing a single string, double-quote comma double-quote "," . It should get you everything between the "," in your strings.

Answer 2

Try

char[] delimiters = new char[] { ',', '"' };
string[] parts = value.Split(delimiters,
                 StringSplitOptions.RemoveEmptyEntries);

Answer 3

Trim first and then split to get rid of all quotes.

string[] stringSeparator = new string[] {"\",\""};
while (!sr.EndOfStream) 
{

    //trim removes first and last quote since they are not removed by the split
    string line = sr.ReadLine().Trim('"');
    string[] values = line.Split(stringSeparator, StringSplitOptions.None);

    for (int index = 0; index < values.Length; index++)
        MessageBox.Show(values[index]);
}

Answer 4

string strline = sr.ReadLine();              
string[] abc = strline.Split('"');
abc = Array.FindAll(abc, val => val != ",").ToArray();
string result[] = Array.FindAll(abc, val => val != "").ToArray();