Archive for the ‘C#’ Category

Sorting a string array in lexicographical order using LINQ and Lambda expression

I think I wrote a function in C for this purpose back in school days. I needed this again in one of my projects recently and for a couple of seconds I thought of a C# – port of that code before I’d realized that LINQ and Lambda expression could come to my rescue. And all it took is mere 4 lines of code (if you count the string array declaration line in the sole purpose )

Oh, and you must add the System.Linq namespace.

string[] strArr = new string[] { "Gibbs", "Ntini", "Pollock", "Cronje", "Smith", "Kirsten", "Steyn", };
List list = strArr.ToList();
list.Sort((str1, str2) => str1.CompareTo(str2));
strArr = list.ToArray();

After the sort the array looks like this:

{ "Cronje", "Gibbs", "Kirsten", "Ntini", "Pollock", "Smith", "Steyn" }

Using Enumeration types in switch-case block and ComboBox in C#

Here’s a code snippet that demonstrates how to use enum types in a switch-case block in combination with the ComboBox control. Just wanted to share ’cause I had to look it up on the web. Hope it helps somebody.

using System;
using System.Windows.Forms;
using System.Diagnostics;

namespace EnumWithCombo
{
    public partial class PlayerSelectionForm : Form
    {
        private enum Players
        {
            Gibbs, Richards, Cronje, Kirsten, Kallis, Smith, Villiers, Pollock, Ntini, Klusener, Steyn, Rhodes, Bosman, Kemp, Botha, Harris, Roelof
        }
        private string url = "http://www.cricinfo.com/ci/content/player/45224.html";

        public PlayerSelectionForm()
        {
            InitializeComponent();
            playersComboBox.DataSource = Enum.GetValues(typeof(Players));
        }

        private void submitButton_Click(object sender, EventArgs e)
        {
            switch ((Players) playersComboBox.SelectedItem)
            {
                case Players.Gibbs:
                    Process.Start(new ProcessStartInfo("iexplore", url));
                    break;
                default:
                    MessageBox.Show(((Players) playersComboBox.SelectedItem).ToString());
                    break;
            }
        }
    }
}