如何通过数字C＃对txt文件中的列表框项目进行排序

Question

I want to know how to i sort the items i have in my listbox from a txt file by the lowest number to the highest?

 private void Form1_Load(object sender, EventArgs e)
    {
        try
        {
            try
            {
                string[] lines = System.IO.File.ReadAllLines("file.txt");
                foreach (string line in lines)
                {
                    listBox1.Items.Add(line);
                }
            }
            catch
            {

            }
        }
        catch
        {

        }
    }

In my txt file

    Shirt = 10$
    pants = 20$
    shoes = 60$
    hat = 10$
    socks = 5$

Answer 1

you must seperate string and number in dicionary then orderby on numbers

 Dictionary<string, int> dic = new Dictionary<string, int>();
        foreach (var line in lines)
        {
            string[] str = line.Split('=');
            var num= str[1].Replace("$",""); // for seperate $ and number
            dic.Add(str[0], (Convert.ToInt32(num)));
        }
        foreach(var sortItem in dic.OrderBy(x=>x.Value))
        {
            listBox1.Items.Add(sortItem .Key + " = "+ sortItem .Value.ToString() + "$");
        }

output is :

socks  = 5$
Shirt  = 10$
 hat  = 10$
pants  = 20$
shoes  = 60$

Answer 2

we can use linq to perform this operation:

string[] lines = File.ReadAllLines(@"D:\Professionals\POC\linQ\linQ\DataFile.txt", Encoding.UTF8);

        if (lines.Count() > 0)
        {
            Dictionary<string, int> listIndex = lines.ToDictionary(
                                                                   x => x.Split('=')[0].Trim(), 
                                                                   x => (x.Contains("$") ? Convert.ToInt32(x.Split('=')[1].Replace("$", "")) : 0)
                                                                   );
            listIndex = listIndex.OrderBy(x => x.Value).ToDictionary(x => x.Key, x => x.Value);
            if (listIndex != null && listIndex.Count > 0)
            {
                //---your code 
            }
        }