Store data in variable

Question

hello I need help I need to store data's inside variable for later use. i have a file which look like this firstsecondthirdfourth firstsecondthirdfourth firstsecondthirdfourth firstsecondthirdfourth firstsecondthirdfourth now i need to store these lines with all string did i need to use list or array. thanks in advance

Vulpes · Answer

You could use a list of string arrays for that: var lines = new List (); string data; string[] line; while((data = sr.ReadLine(file)) != null) { line=data.split() label1.Text=line[0]; lines.Add(line); } You could then access the first field of the first line with lines[0][0] or the i'th field of the j'th line with lines[i][j].

Vulpes · Answer

Do you mean that you only want to store lines in the file which have exactly 5 fields and that any others should be ignored? If so try this (off 'top of head' untested): var lines = new List (); using (var sr = new StreamReader(kk.txt)) { string line = null; while((line = sr.ReadLine()) != null) { string[] items = line.Split(''); if (items.Length == 5) lines.Add(line); } }

Vulpes · Answer

You can use an array: using System.IO; // ... string[] lines = File.ReadAllLines(kk.txt);

krishnakumar kuna · Answer

thank you very much

Vulpes · Answer

Yes if you want to store numbers as well as strings then the best way is to introduce a custom class and then create a list of those. So here you'd have: public class lineclass { public string name {get; set} public int number {get; set;} } // ... var lines = new List (); string data; string[] line; while((data = sr.ReadLine(file)) != null) { line = data.split(''); label1.Text = line[0]; lineclass lc = new lineclass(); lc.name = line[0]; lc.number = int.Parse(line[1]); lines.Add(lc); } To access the number property of the i'th line you'd then use lines[i].number. Incidentally in my previous post I should have said that to access the i'th field of the j'th line you'd use lines[j][i] not lines[i][j].

krishnakumar kuna · Answer

Thank you very much if i need to store a number i could convert it to string but if i need to store as number it self means . Did i need to create class with how many variable i need to store. could you please if it is correct public void lineclass() { string name; int number; } and use var lines =new list (); please help i dont know about this thank you

krishnakumar kuna · Answer

sorry for not telling in explained way. this will help A file like this john1432somedatasomedata kumar564somedatasomedata jai34241somedatasomedata now from the file i need these data for each person or each line to be read and stored in a variable .so that later from the these variable i will write the data to a database. now i a m using array where for every loop i need to run insert statement but if i use in a collection i could access any line at any time. eg: string data string[] line; while(data=sr.readline(file)!=null) { line=data.split() label1.text=line[0]; } i access those data inside while loop itself as when the loop loops second time the data in array list get overlaped with new dataas you know better than me.but what i want is i want to access all 5 lines even after the loop is finished. like after loop is finished label1.text=line[1][0];(i know this is wrong because this is not a multidimensional array) for 3rd line label3.text=linep[3][0] thanks again.sorry for the trouble.

krishnakumar kuna · Answer

thanks for answer  but i need to loop and store all data that is five string values in it and looping through all lines all string should be stored. how? thanks in advance