从列表框行中隔离值

Question

I have got a line in a lisbox that i need so i can print out my receipt for the end of my 12 grade project im doing.
Example of my line : "cha1 Adidas Stan Smith White 1 2" (its padded). Now what i want to do is isolate like cha1, Adidas stan Smith White,1,2 to add to my Microsoft Access Database, i somehow managed to do it with substring but i screwed up my code and now i cant do it , can somebody help me please ?

My code ,that used to work , looks like this :

 foreach (string item in lstpreview.Items)
            {
            //create the string to print on the reciept
            string nomeproduto = item;

            float quantidade = float.Parse(item.Substring(item.Length -5, 5));
            float precounitario = float.Parse(item.Substring(item.Length - 5, 5));
            string totalproduto = item.Substring(item.Length - 6, 6);

            txt1.Text = Convert.ToString(quantidade);
            txt2.Text = Convert.ToString(precounitario);
            //MessageBox.Show(item.Substring(item.Length - 5, 5) + "PROD TOTAL: " + totalproduto);

            //float totalprice = 0.00f;





        }

Answer 1

You say that the line is padded, but do not give any details. If you know that the first field is always the first 4 characters of the line, you can isolate it with string.Substring :

string field1 = line.Substring(0, 4);

and similarly for the other fields.

PS Please edit your post and remove the swear word.

Edit after parsing code added

I don't understand your comment, what is "your negative value"? Run the code in the debugger and find which line causes the error. Please post the exact error message.

Is there a reason for converting the substring to a float and then back to a string? I can imagine that you might want to validate that the field is numeric, but then you would be better to use TryParse .

Your second comment is helpful. The last 5 characters of the line are not all numeric, that's the problem.

Answer 2

Done it with this snippet of code together with a for each loop.

string[] caracteresnastring = item.Split(new char[] { ',' }.ToArray());
            string code = caracteresnastring[0];
            string name = caracteresnastring[1];
            string price = caracteresnastring[2];
            string quantity = caracteresnastring[3];