lisa

lisa

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Custom Dictionary Sort C#

Feb 28 2010 12:32 PM
Hello,

I am trying to set up a GUI with 2 multi-line textboxes to allow me to paste in part #'s in any order into textBox1.Text, and have the predefined order be spit out and moved into textBox2.Text after I click my button. I am using 1,2,3,4 as examples, but it will be part #'s later and they will have no type of numerical sort order, it is completely random so it has to be a a defined order from a dictionary.

I have googled for this solution and found many answers but all are targeted for console applications and I am not skilled enough yet to restructure a console app to a GUI.

I think that the only issue is the end of the code where I tell it to actually read textbox1 and spit out the re-order into textbox2.  I think I should not be using compare which is where i get the error.  I think I just need to do a standard array sort which I cannot figure out.

Thank you for taking the time to read this.



code:

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;

namespace WindowsFormsApplication2
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private void button1_Click(object sender, EventArgs e)
        {
            // You don't have to qualify the whole name. You included the using directive already.
            /*System.Collections.Generic.*/

            // I changed this to auto-initialize:
            Dictionary<string, int> myDict = new Dictionary<string, int>()
        {
            { "one", 1 },
            { "four", 4 },
            { "two", 2 },
            { "three", 3 }
        };

            // OK. Here we are retrieving all items in that dictionary and ordering them by value.
            // Value of the dictionary is int. In ascending order, this turns into 1,2,3,4.
            var sortedDict = (from entry in myDict orderby entry.Value ascending select entry);

            //  multi-line textbox
            string[] items = textBox1.Text.Split(Environment.NewLine.ToCharArray());

            Array.Sort<string>(items, 0, items.Length, new Comparer());
            textBox2.Text = String.Join(Environment.NewLine, items);

            //This is where I am having the issue, I am having trouble transitioning from reading textbox1 from any order, and spitting it into textBox2.Text in the predefined order.  I am not supposed to be using a Comparer I belive, but I am not sure what to do.

        }
    }
}


Answers (13)