sort data in listbox

Vulpes13y ago

Accepted answer

As the ISBN is the first column, a default string sort based on the whole line should achieve the desired result here:

string[] lines = File.ReadAllLines("books.txt");

Array.Sort(lines);
listBox1.DataSource = lines;

Vulpes13y ago

Yes, you can add the lines to the listbox 'manually' and have the listbox sort them for you:

string[] lines = File.ReadAllLines("books.txt");
listBox1.Items.Clear();

listBox1.Items.AddRange(lines);

listBox1.Sorted = true;

meng13y ago

is there another possible method of sorting without using datasource?

Vulpes13y ago

It's difficult to answer this without knowing how you're dealing with 5 columns within a ListBox which normally has only one but, assuming you're loading the contents of the text file into an array, this code will sort them before displaying them in the ListBox:

string[] names = {"C, D, E, F, G", "A, B, D, G, C", "B, E, C, D, F", "B, A, F, G, C"};

Array.Sort(names);

listBox1.DataSource = names;

The result is:

A, B, D, G, C
B, A, F, G, C
B, E, C, D, F
C, D, E, F, G