Here is an "enhanced" Listview class. You can just add it your project and you're good to go. Most of the code came from here and there. It's not perfect by any means, so any input is appreciated.
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Drawing;
using System.Data;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
using System.Collections;
using System.Globalization;
namespace ChangeThisNamespace
{
partial class EnhancedListView
{
/// <summary>
/// Required designer variable.
/// </summary>
private System.ComponentModel.IContainer components = null;
/// <summary>
/// Clean up any resources being used.
/// </summary>
/// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>
protected override void Dispose(bool disposing)
{
if (disposing && (components != null))
{
components.Dispose();
}
base.Dispose(disposing);
}
#region Component Designer generated code
/// <summary>
/// Required method for Designer support - do not modify
/// the contents of this method with the code editor.
/// </summary>
private void InitializeComponent()
{
this.SuspendLayout();
//
// EnhancedListView
//
this.ColumnClick += new System.Windows.Forms.ColumnClickEventHandler(this.EnhancedListView_ColumnClick);
this.ResumeLayout(false);
}
#endregion
}
}
namespace ChangeThisNamespace
{
public partial class EnhancedListView : ListView
{
enum lvEvents : uint
{
ItemAdded = 0x104D,
ItemRemoved = 0x1008
}
private ListViewColumnSorter lvwColumnSorter;
public event EventHandler ItemAdded;
public event EventHandler ItemRemoved;
/// <summary>
/// Sets or Gets alternate color for the listview rows.
/// </summary>
public Color AlternateColor { get; set; }
/// <summary>
/// Sets or Gets DateTimeFormat for sorting columns that contain DateTime.
/// </summary>
public string DateTimeFormat { set; get; }
public EnhancedListView()
{
AlternateColor = Color.Empty;
lvwColumnSorter = new ListViewColumnSorter();
this.ListViewItemSorter = lvwColumnSorter;
ItemAdded += ItemAddedToLV;
ItemRemoved += ItemRemovedFromLV;
//Activate double buffering
this.SetStyle(ControlStyles.OptimizedDoubleBuffer | ControlStyles.AllPaintingInWmPaint, true);
//Enable the OnNotifyMessage event so we get a chance to filter out
// Windows messages before they get to the form's WndProc
this.SetStyle(ControlStyles.EnableNotifyMessage, true);
InitializeComponent();
}
protected override void InitLayout()
{
lvwColumnSorter.timeFormat = DateTimeFormat;
base.InitLayout();
}
protected override void OnPaint(PaintEventArgs e)
{
lvwColumnSorter.timeFormat = DateTimeFormat;
base.OnPaint(e);
}
protected override void OnNotifyMessage(Message m)
{
//Filter out the WM_ERASEBKGND message
if (m.Msg != 0x14)
{
base.OnNotifyMessage(m);
}
}
protected override void WndProc(ref Message m)
{
base.WndProc(ref m);
switch ((lvEvents)m.Msg)
{
case lvEvents.ItemAdded:
if (ItemAdded != null)
{
ItemAdded(this, null);
}
break;
case lvEvents.ItemRemoved:
if (ItemRemoved != null)
{
ItemRemoved(this, null);
}
break;
default:
break;
}
}
public void SetAlternateColor()
{
try
{
if (!AlternateColor.IsEmpty && this.Items.Count != 0)
{
if (this.Items.Count > 1)
{
for (int ix = 0; ix < this.Items.Count; ++ix)
{
var item = this.Items[ix];
item.BackColor = (ix % 2 == 0) ? AlternateColor : Color.White;
}
}
}
}
catch (Exception)
{
}
}
void ItemAddedToLV(object sender, EventArgs e)
{
SetAlternateColor();
}
void ItemRemovedFromLV(object sender, EventArgs e)
{
MessageBox.Show("Removed");
SetAlternateColor();
}
private void EnhancedListView_ColumnClick(object sender, ColumnClickEventArgs e)
{
if (this.Items.Count != 0)
{
// Determine if clicked column is already the column that is being sorted.
if (e.Column == lvwColumnSorter.SortColumn)
{
// Reverse the current sort direction for this column.
if (lvwColumnSorter.Order == System.Windows.Forms.SortOrder.Ascending)
{
lvwColumnSorter.Order = System.Windows.Forms.SortOrder.Descending;
}
else
{
lvwColumnSorter.Order = System.Windows.Forms.SortOrder.Ascending;
}
}
else
{
// Set the column number that is to be sorted; default to ascending.
lvwColumnSorter.SortColumn = e.Column;
lvwColumnSorter.Order = System.Windows.Forms.SortOrder.Ascending;
}
// Perform the sort with these new sort options.
this.Sort();
SetAlternateColor();
}
}
}
public class ListViewColumnSorter : IComparer
{
public string timeFormat { set; get; } // = "HH:mm:ss - dd-MM-yyyy";
//private string dtFormat;
/// <summary>
/// Specifies the column to be sorted
/// </summary>
private int columnToSort;
/// <summary>
/// Specifies the order in which to sort (i.e. 'Ascending').
/// </summary>
private SortOrder orderOfSort;
/// <summary>
/// Case insensitive comparer object
/// </summary>
private CaseInsensitiveComparer objectCompare;
//private CaseInsensitiveComparer xNumber;
/// <summary>
/// Class constructor. Initializes various elements
/// </summary>
public ListViewColumnSorter()
{
// Initialize the column to '0'
columnToSort = 0;
// Initialize the sort order to 'none'
orderOfSort = SortOrder.None;
// Initialize the CaseInsensitiveComparer object
objectCompare = new CaseInsensitiveComparer();
}
/// <summary>
/// This method is inherited from the IComparer interface. It compares the two objects passed using a case insensitive comparison.
/// </summary>
/// <param name="x">First object to be compared</param>
/// <param name="y">Second object to be compared</param>
/// <returns>The result of the comparison. "0" if equal, negative if 'x' is less than 'y' and positive if 'x' is greater than 'y'</returns>
public int Compare(object x, object y)
{
int compareResult;
ListViewItem listviewX, listviewY;
// Cast the objects to be compared to ListViewItem objects
listviewX = (ListViewItem)x;
listviewY = (ListViewItem)y;
// Compare the two items
int valueX;
int valueY;
string txtValueX = listviewX.SubItems[columnToSort].Text;
string txtValueY = listviewY.SubItems[columnToSort].Text;
double xNumber, yNumber;
bool parsed = double.TryParse(txtValueX, out xNumber);
parsed = parsed && double.TryParse(txtValueY, out yNumber);
if (parsed)
{
compareResult = objectCompare.Compare((int.TryParse(listviewX.SubItems[columnToSort].Text, out valueX) ? valueX : 0), (int.TryParse(listviewY.SubItems[columnToSort].Text, out valueY) ? valueY : 0));
}
else
{
compareResult = objectCompare.Compare(listviewX.SubItems[columnToSort].Text, listviewY.SubItems[columnToSort].Text);
}
DateTime dateX;
DateTime dateY;
if (timeFormat != "" && timeFormat != null)
{
if (
DateTime.TryParseExact(listviewX.SubItems[columnToSort].Text, timeFormat, CultureInfo.InvariantCulture, DateTimeStyles.None, out dateX)
&& DateTime.TryParseExact(listviewY.SubItems[columnToSort].Text, timeFormat, CultureInfo.InvariantCulture, DateTimeStyles.None, out dateY)
)
{
compareResult = objectCompare.Compare(dateX, dateY);
}
}
// Calculate correct return value based on object comparison
if (orderOfSort == SortOrder.Ascending)
{
// Ascending sort is selected, return normal result of compare operation
return compareResult;
}
else if (orderOfSort == SortOrder.Descending)
{
// Descending sort is selected, return negative result of compare operation
return (-compareResult);
}
else
{
// Return '0' to indicate they are equal
return 0;
}
}
/// <summary>
/// Gets or sets the number of the column to which to apply the sorting operation (Defaults to '0').
/// </summary>
public int SortColumn
{
set { columnToSort = value; }
get { return columnToSort; }
}
/// <summary>
/// Gets or sets the order of sorting to apply (for example, 'Ascending' or 'Descending').
/// </summary>
public SortOrder Order
{
set { orderOfSort = value; }
get { return orderOfSort; }
}
}
}
