Split string from List<string> to a string.

Murali Kris

7y841Learn iOS Programming

Hi,

how can i split string from List list .

here is the code:

char[] mychars {;}

List textn = new List(new[] { row["PERMISSIONS"].ToString() }); // row[per] from datatable.

//textn returns some data like one,two,three

string lines;

lines = textn.ToString(); // assigning to lines it returns (=System.String[])

string[] names = lines.Split(mychars, StringSplitOptions.None);

//string[] names = lines.Split(mychars); tried but no luck same error.

foreach (var item in names)

{

Console.WriteLine(item.ToString()); // returns =System.String[]

}

input from datatable is one;two;three;four

expected output is one \n two \n three \n four

Any help here.

3 Replies

Know the answer? Post it — somebody with the same question will find it here.

Suraj Kumar7y ago
Accepted answer
You can use the below code
List<string> textn = new List<string>(new[] { row["PERMISSIONS"].ToString() }); // row[per] from datatable.
string output = string.Join(Environment.NewLine, textn.ToArray());

Console.Write(output);
Hope this will help you.
Murali Kris7y ago
Thank you Suraj,
Yes, now i can able to read and get expected output(split string).
string output = string.Join(Environment.NewLine, textn.ToArray()); woks perfect.
but dont know how to clear each loop. i want to cleat during foreach loop.
example:
1st row =1,2,3
2nd row =4,5,6
each foreach code lopping previous row data also
means
output 1st looping row =1,2,3
2nd looping row = 1,2,3,4,5,6 3rd time 1,2,3,4,5,6,7,8 etc.

we want only current row value, but it is looping previous row values also. how can clear each loop.

foreach (DataRow row in dt.Rows)
{
char[] mychars = { ';' };
List textn = new List();
textn.Clear(); //clearing here list but no luck
textn = new List(new[] { row["Source-USER/GRP PERMISSIONS"].ToString() });
string combindedString = null; //assigning here null eachloop but no luck
combindedString = string.Join(Environment.NewLine, textn.ToArray());
string[] names = null; //assigning here null/clearing each loop but no luck
names = combindedString.Split(mychars, StringSplitOptions.None);
foreach (var item in names)
{
MessageBox.Show(item.ToString());
}

}

can you help me here how can i clear each loop, i want to read on current row values.
Suraj Kumar7y ago
You can use your code similart to the below one with some modification.
List<string> list = new List<string>()
                                    {
                                        "Red",
                                        "Blue",
                                        "Green"
                                    };

string output = string.Join(Environment.NewLine, list.ToArray());

Console.Write(output);

The result would be:

Red

Blue

Green
Hope this will help you.