OrderGroups.cs

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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 SeciUserInterface.Dialogs.Blocks
{
    public partial class OrderGroups : Form
    {
        public List<String> Order = new List<string>();

        public OrderGroups()
        {
            InitializeComponent();
        }

        private void OrderGroups_Load(object sender, EventArgs e)
        {
            populateList();
        }

        private void populateList()
        {
            lstGroups.Items.Clear();
            for (int i = 0; i < Order.Count; ++i)
            {
                lstGroups.Items.Add(Order[i]);
            }
        }

        private void btnOK_Click(object sender, EventArgs e)
        {
            DialogResult = System.Windows.Forms.DialogResult.OK;
            Close();
        }

        private void btnCancel_Click(object sender, EventArgs e)
        {

        }

        private void btnUp_Click(object sender, EventArgs e)
        {
            if (lstGroups.SelectedIndex != -1 && lstGroups.SelectedIndex > 0)
            {
                string temp = Order[lstGroups.SelectedIndex - 1];
                Order.RemoveAt(lstGroups.SelectedIndex - 1);
                Order.Insert(lstGroups.SelectedIndex, temp);
                int index = lstGroups.SelectedIndex;
                populateList();
                lstGroups.SelectedIndex = index - 1;
            }
        }

        private void btnDown_Click(object sender, EventArgs e)
        {
            if (lstGroups.SelectedIndex != -1 && lstGroups.SelectedIndex < Order.Count - 1)
            {
                string temp = Order[lstGroups.SelectedIndex + 1];
                Order.RemoveAt(lstGroups.SelectedIndex + 1);
                Order.Insert(lstGroups.SelectedIndex, temp);
                int index = lstGroups.SelectedIndex;
                populateList();
                lstGroups.SelectedIndex = index + 1;
            }
        }       
    }
}