C# 按列对 ListView 进行排序

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时间:2020-08-06 18:44:37  来源:igfitidea点击:

Sorting A ListView By Column

c#sortinglistview

提问by Mike

Currently I use a custom sorter on the listview, and i can sort the listview each time i click on the FIRST column, but it won't sort by other columns.

目前我在列表视图上使用自定义排序器,每次单击第一列时我都可以对列表视图进行排序,但它不会按其他列排序。

SortStyle: Variable to determine whether it is Ascending Sort, or Descending.

SortStyle:决定是升序还是降序的变量。

if (e.Column == 0)
{
    if (SortStyle == 0)
    {
        List.ListViewItemSorter = customSortDsc;
        SortStyle = 1;
    }
    else
    {
        List.ListViewItemSorter = customSortAsc;
        SortStyle = 0;
    }
}

This works fine when sorting for the first column, but if you were to do it on any other column, it would just sort by the first column. Is there a way to sort by the column clicked?

这在对第一列进行排序时工作正常,但如果您要对任何其他列进行排序,则只会按第一列排序。有没有办法按点击的列排序?

采纳答案by Grammarian

If you are starting out with a ListView, do yourself a huge favour and use an ObjectListViewinstead. ObjectListView is an open source wrapper around .NET WinForms ListView, which makes the ListView much easier to use and solves lots of common problems for you. Sorting by column click is one of the many things it handles for you automatically.

如果您从 ListView 开始,帮自己一个大忙,改用ObjectListView。ObjectListView 是 .NET WinForms ListView 的开源包装器,它使 ListView 更易于使用并为您解决了许多常见问题。按列点击排序是它自动为您处理的众多事情之一。

Seriously, you will never regret using an ObjectListView instead of a normal ListView.

说真的,你永远不会后悔使用 ObjectListView 而不是普通的 ListView。

回答by Wil P

I sort using column name to set any sorting specifics that may need to be handled based on data type stored in the column and or if the column has already been sorted on(asc/desc). Here's a snippet from my ColumnClick event handler.

我使用列名排序来设置可能需要根据列中存储的数据类型处理的任何排序细节,或者列是否已经排序(asc/desc)。这是我的 ColumnClick 事件处理程序的一个片段。

private void listView_ColumnClick(object sender, ColumnClickEventArgs e)
    {
        ListViewItemComparer sorter = GetListViewSorter(e.Column);

        listView.ListViewItemSorter = sorter;
        listView.Sort();
    }

    private ListViewItemComparer GetListViewSorter(int columnIndex)
    {
        ListViewItemComparer sorter = (ListViewItemComparer)listView.ListViewItemSorter;
        if (sorter == null)
        {
            sorter = new ListViewItemComparer();
        }

        sorter.ColumnIndex = columnIndex;

        string columnName = packagedEstimateListView.Columns[columnIndex].Name;
        switch (columnName)
        {
            case ApplicationModel.DisplayColumns.DateCreated:
            case ApplicationModel.DisplayColumns.DateUpdated:
                sorter.ColumnType = ColumnDataType.DateTime;
                break;
            case ApplicationModel.DisplayColumns.NetTotal:
            case ApplicationModel.DisplayColumns.GrossTotal:
                sorter.ColumnType = ColumnDataType.Decimal;
                break;
            default:
                sorter.ColumnType = ColumnDataType.String;
                break;
        }

        if (sorter.SortDirection == SortOrder.Ascending)
        {
            sorter.SortDirection = SortOrder.Descending;
        }
        else
        {
            sorter.SortDirection = SortOrder.Ascending;
        }

        return sorter;
    }

Below is my ListViewItemComparer

下面是我的 ListViewItemComparer

public class ListViewItemComparer : IComparer
{
    private int _columnIndex;
    public int ColumnIndex
    {
        get
        {
            return _columnIndex;
        }
        set
        {
            _columnIndex = value;
        }
    }

    private SortOrder _sortDirection;
    public SortOrder SortDirection
    {
        get
        {
            return _sortDirection;
        }
        set
        {
            _sortDirection = value;
        }
    }

    private ColumnDataType _columnType;
    public ColumnDataType ColumnType
    {
        get
        {
            return _columnType;
        }
        set
        {
            _columnType = value;
        }
    }


    public ListViewItemComparer()
    {
        _sortDirection = SortOrder.None;
    }

    public int Compare(object x, object y)
    {
        ListViewItem lviX = x as ListViewItem;
        ListViewItem lviY = y as ListViewItem;

        int result;

        if (lviX == null && lviY == null)
        {
            result = 0;
        }
        else if (lviX == null)
        {
            result = -1;
        }

        else if (lviY == null)
        {
            result = 1;
        }

        switch (ColumnType)
        {
            case ColumnDataType.DateTime:
                DateTime xDt = DataParseUtility.ParseDate(lviX.SubItems[ColumnIndex].Text);
                DateTime yDt = DataParseUtility.ParseDate(lviY.SubItems[ColumnIndex].Text);
                result = DateTime.Compare(xDt, yDt);
                break;

            case ColumnDataType.Decimal:
                Decimal xD = DataParseUtility.ParseDecimal(lviX.SubItems[ColumnIndex].Text.Replace("$", string.Empty).Replace(",", string.Empty));
                Decimal yD = DataParseUtility.ParseDecimal(lviY.SubItems[ColumnIndex].Text.Replace("$", string.Empty).Replace(",", string.Empty));
                result = Decimal.Compare(xD, yD);
                break;
            case ColumnDataType.Short:
                short xShort = DataParseUtility.ParseShort(lviX.SubItems[ColumnIndex].Text);
                short yShort = DataParseUtility.ParseShort(lviY.SubItems[ColumnIndex].Text);
                result = xShort.CompareTo(yShort);
                break;
            case ColumnDataType.Int:
                int xInt = DataParseUtility.ParseInt(lviX.SubItems[ColumnIndex].Text);
                int yInt = DataParseUtility.ParseInt(lviY.SubItems[ColumnIndex].Text);
                return xInt.CompareTo(yInt);
                break;
            case ColumnDataType.Long:
                long xLong = DataParseUtility.ParseLong(lviX.SubItems[ColumnIndex].Text);
                long yLong = DataParseUtility.ParseLong(lviY.SubItems[ColumnIndex].Text);
                return xLong.CompareTo(yLong);
                break;
            default:

                result = string.Compare(
                    lviX.SubItems[ColumnIndex].Text,
                    lviY.SubItems[ColumnIndex].Text,
                    false);

                break;
        }

        if (SortDirection == SortOrder.Descending)
        {
            return -result;
        }
        else
        {
            return result;
        }
    }
}

回答by Letterman

i would recommend you to you datagridview, for heavy stuff.. it's include a lot of auto feature listviwe does not

我会向你推荐 datagridview,对于繁重的东西......它包括很多自动功能 listviwe 没有

回答by rick schott

Use the ListView.SortExpression.

使用ListView.SortExpression

When multiple columns are sorted, this property contains a comma-separated list of the fields to sort by.

对多个列进行排序时,此属性包含要作为排序依据的字段的逗号分隔列表。

回答by RedEye

Forget about your custom sorter. Start over using the code at the following page. It will show you how to define a class that inherits from the IComparer interface. Each line is commented out, so you can actually see what is happening. The only potential complication is how you are retrieving your Listview Items from your Listview control. Get those squared away and all you need to do is copy and paste the IComparer interface class and the columnClick method.

忘记您的自定义分拣机。使用下一页中的代码重新开始。它将向您展示如何定义从 IComparer 接口继承的类。每一行都被注释掉了,所以你可以真正看到发生了什么。唯一潜在的复杂问题是如何从 Listview 控件中检索 Listview 项。把这些整理好,您需要做的就是复制并粘贴 IComparer 接口类和 columnClick 方法。

http://support.microsoft.com/kb/319401

http://support.microsoft.com/kb/319401

回答by edid

My solution is a class to sort listView items when you click on column header.

我的解决方案是当您单击列标题时对 listView 项目进行排序的类。

You can specify the type of each column.

您可以指定每列的类型。

listView.ListViewItemSorter = new ListViewColumnSorter();
listView.ListViewItemSorter.ColumnsTypeComparer.Add(0, DateTime);
listView.ListViewItemSorter.ColumnsTypeComparer.Add(1, int);

That's it !

就是这样 !

The C# class :

C# 类:

using System.Collections;
using System.Collections.Generic;
using EDV;

namespace System.Windows.Forms
{
    /// <summary>
    /// Cette classe est une implémentation de l'interface 'IComparer' pour le tri des items de ListView. Adapté de http://support.microsoft.com/kb/319401.
    /// </summary>
    /// <remarks>Intégré par EDVariables.</remarks>
    public class ListViewColumnSorter : IComparer
    {
        /// <summary>
        /// Spécifie la colonne à trier
        /// </summary>
        private int ColumnToSort;
        /// <summary>
        /// Spécifie l'ordre de tri (en d'autres termes 'Croissant').
        /// </summary>
        private SortOrder OrderOfSort;
        /// <summary>
        /// Objet de comparaison ne respectant pas les majuscules et minuscules
        /// </summary>
        private CaseInsensitiveComparer ObjectCompare;

        /// <summary>
        /// Constructeur de classe.  Initialise la colonne sur '0' et aucun tri
        /// </summary>
        public ListViewColumnSorter()
            : this(0, SortOrder.None) { }

        /// <summary>
        /// Constructeur de classe.  Initializes various elements
        /// <param name="columnToSort">Spécifie la colonne à trier</param>
        /// <param name="orderOfSort">Spécifie l'ordre de tri</param>
        /// </summary>
        public ListViewColumnSorter(int columnToSort, SortOrder orderOfSort)
        {
            // Initialise la colonne
            ColumnToSort = columnToSort;

            // Initialise l'ordre de tri
            OrderOfSort = orderOfSort;

            // Initialise l'objet CaseInsensitiveComparer
            ObjectCompare = new CaseInsensitiveComparer();

            // Dictionnaire de comparateurs
            ColumnsComparer = new Dictionary<int, IComparer>();
            ColumnsTypeComparer = new Dictionary<int, Type>();

        }

        /// <summary>
        /// Cette méthode est héritée de l'interface IComparer.  Il compare les deux objets passés en effectuant une comparaison 
        ///qui ne tient pas compte des majuscules et des minuscules.
        /// <br/>Si le comparateur n'existe pas dans ColumnsComparer, CaseInsensitiveComparer est utilisé.
        /// </summary>
        /// <param name="x">Premier objet à comparer</param>
        /// <param name="x">Deuxième objet à comparer</param>
        /// <returns>Le résultat de la comparaison. "0" si équivalent, négatif si 'x' est inférieur à 'y' 
        ///et positif si 'x' est supérieur à 'y'</returns>
        public int Compare(object x, object y)
        {
            int compareResult;
            ListViewItem listviewX, listviewY;

            // Envoit les objets à comparer aux objets ListViewItem
            listviewX = (ListViewItem)x;
            listviewY = (ListViewItem)y;

            if (listviewX.SubItems.Count < ColumnToSort + 1 || listviewY.SubItems.Count < ColumnToSort + 1)
                return 0;

            IComparer objectComparer = null;
            Type comparableType = null;
            if (ColumnsComparer == null || !ColumnsComparer.TryGetValue(ColumnToSort, out objectComparer))
                if (ColumnsTypeComparer == null || !ColumnsTypeComparer.TryGetValue(ColumnToSort, out comparableType))
                    objectComparer = ObjectCompare;

            // Compare les deux éléments
            if (comparableType != null) {
                //Conversion du type
                object valueX = listviewX.SubItems[ColumnToSort].Text;
                object valueY = listviewY.SubItems[ColumnToSort].Text;
                if (!edvTools.TryParse(ref valueX, comparableType) || !edvTools.TryParse(ref valueY, comparableType))
                    return 0;
                compareResult = (valueX as IComparable).CompareTo(valueY);
            }
            else
                compareResult = objectComparer.Compare(listviewX.SubItems[ColumnToSort].Text, listviewY.SubItems[ColumnToSort].Text);

            // Calcule la valeur correcte d'après la comparaison d'objets
            if (OrderOfSort == SortOrder.Ascending) {
                // Le tri croissant est sélectionné, renvoie des résultats normaux de comparaison
                return compareResult;
            }
            else if (OrderOfSort == SortOrder.Descending) {
                // Le tri décroissant est sélectionné, renvoie des résultats négatifs de comparaison
                return (-compareResult);
            }
            else {
                // Renvoie '0' pour indiquer qu'ils sont égaux
                return 0;
            }
        }

        /// <summary>
        /// Obtient ou définit le numéro de la colonne à laquelle appliquer l'opération de tri (par défaut sur '0').
        /// </summary>
        public int SortColumn
        {
            set
            {
                ColumnToSort = value;
            }
            get
            {
                return ColumnToSort;
            }
        }

        /// <summary>
        /// Obtient ou définit l'ordre de tri à appliquer (par exemple, 'croissant' ou 'décroissant').
        /// </summary>
        public SortOrder Order
        {
            set
            {
                OrderOfSort = value;
            }
            get
            {
                return OrderOfSort;
            }
        }

        /// <summary>
        /// Dictionnaire de comparateurs par colonne.
        /// <br/>Pendant le tri, si le comparateur n'existe pas dans ColumnsComparer, CaseInsensitiveComparer est utilisé.
        /// </summary>
        public Dictionary<int, IComparer> ColumnsComparer { get; set; }

        /// <summary>
        /// Dictionnaire de comparateurs par colonne.
        /// <br/>Pendant le tri, si le comparateur n'existe pas dans ColumnsTypeComparer, CaseInsensitiveComparer est utilisé.
        /// </summary>
        public Dictionary<int, Type> ColumnsTypeComparer { get; set; }
    }
}

Initializing a ListView :

初始化 ListView :

    <var>Visual.WIN.ctrlListView.OnShown</var>  : 
    eventSender.Columns.Clear();
    eventSender.SmallImageList = edvWinForm.ImageList16;
    eventSender.ListViewItemSorter = new ListViewColumnSorter();
    var col = eventSender.Columns.Add("Réperttheitroade");
    col.Width = 160;
    col.ImageKey = "Domain";
    col = eventSender.Columns.Add("Fichier");
    col.Width = 180;
    col.ImageKey = "File";
    col = eventSender.Columns.Add("Date");
    col.Width = 120;
    col.ImageKey = "DateTime";
    eventSender.ListViewItemSorter.ColumnsTypeComparer.Add(col.Index, DateTime);
    col = eventSender.Columns.Add("Position");
    col.TextAlign = HorizontalAlignment.Right;
    col.Width = 80;
    col.ImageKey = "Num";
    eventSender.ListViewItemSorter.ColumnsTypeComparer.Add(col.Index, Int32);

Fill a ListView :

填充一个 ListView :

<var>Visual.WIN.cmdSearch.OnClick</var>  : 
//non récursif et sans fonction
    ..ctrlListView:Items.Clear();
    ..ctrlListView:Sorting = SortOrder.None;
    var group = ..ctrlListView:Groups.Add(DateTime.Now.ToString()
                , Path.Combine(..cboDir:Text, ..ctrlPattern1:Text) + " contenant " + ..ctrlSearch1:Text);
    var perf =  Environment.TickCount;

    var files = new DirectoryInfo(..cboDir:Text).GetFiles(..ctrlPattern1:Text)
    var search = ..ctrlSearch1:Text;
    var ignoreCase = ..Search.IgnoreCase;
    //var result = new StringBuilder();
    var dirLength : int = ..cboDir:Text.Length;
    var position : int;
    var added : int = 0;
    for(var i : int = 0; i &lt; files.Length; i++){
        var file = files[i];
        if(search == ""
        || (position = File.ReadAllText(file.FullName).IndexOf(String(search)
                            , StringComparison(ignoreCase ? StringComparison.InvariantCultureIgnoreCase : StringComparison.InvariantCulture))) &gt; =0) {

        //  result.AppendLine(file.FullName.Substring(dirLength) + "\tPos : " + pkvFile.Value);
            var item = ..ctrlListView:Items.Add(file.FullName.Substring(dirLength));
            item.SubItems.Add(file.Name);
            item.SubItems.Add(File.GetLastWriteTime(file.FullName).ToString());
            item.SubItems.Add(position.ToString("# ### ##0"));
            item.Group = group;
            ++added;
        }
    }
    group.Header += " : " + added + "/" + files.Length + " fichier(s)"
                + "  en " + (Environment.TickCount - perf).ToString("# ##0 msec");

On ListView column click :

在 ListView 列上单击:

<var>Visual.WIN.ctrlListView.OnColumnClick</var>  : 
// Déterminer si la colonne sélectionnée est déjà la colonne triée.
var sorter = eventSender.ListViewItemSorter;
if ( eventArgs.Column == sorter .SortColumn )
{
    // Inverser le sens de tri en cours pour cette colonne.
    if (sorter.Order == SortOrder.Ascending)
    {
        sorter.Order = SortOrder.Descending;
    }
    else
    {
        sorter.Order = SortOrder.Ascending;
    }
}
else
{
    // Définir le numéro de colonne à trier ; par défaut sur croissant.
    sorter.SortColumn = eventArgs.Column;
    sorter.Order = SortOrder.Ascending;
}

// Procéder au tri avec les nouvelles options.
eventSender.Sort();

Function edvTools.TryParse used above

上面使用的函数 edvTools.TryParse

class edvTools {
    /// <summary>
    /// Tente la conversion d'une valeur suivant un type EDVType
    /// </summary>
    /// <param name="pValue">Référence de la valeur à convertir</param>
    /// <param name="pType">Type EDV en sortie</param>
    /// <returns></returns>
    public static bool TryParse(ref object pValue, System.Type pType)
    {
        int lIParsed;
        double lDParsed;
        string lsValue;
        if (pValue == null) return false;
        if (pType.Equals(typeof(bool))) {
            bool lBParsed;
            if (pValue is bool) return true;
            if (double.TryParse(pValue.ToString(), out lDParsed)) {
                pValue = lDParsed != 0D;
                return true;
            }
            if (bool.TryParse(pValue.ToString(), out lBParsed)) {
                pValue = lBParsed;
                return true;
            }
            else
                return false;
        }
        if (pType.Equals(typeof(Double))) {
            if (pValue is Double) return true;
            if (double.TryParse(pValue.ToString(), out lDParsed)
                || double.TryParse(pValue.ToString().Replace(NumberDecimalSeparatorNOT, NumberDecimalSeparator), out lDParsed)) {
                pValue = lDParsed;
                return true;
            }
            else
                return false;
        }
        if (pType.Equals(typeof(int))) {
            if (pValue is int) return true;
            if (Int32.TryParse(pValue.ToString(), out lIParsed)) {
                pValue = lIParsed;
                return true;
            }
            else if (double.TryParse(pValue.ToString(), out lDParsed)) {
                pValue = (int)lDParsed;
                return true;
            }
            else
                return false;
        }
        if (pType.Equals(typeof(Byte))) {
            if (pValue is byte) return true;
            byte lByte;
            if (Byte.TryParse(pValue.ToString(), out lByte)) {
                pValue = lByte;
                return true;
            }
            else if (double.TryParse(pValue.ToString(), out lDParsed)) {
                pValue = (byte)lDParsed;
                return true;
            }
            else
                return false;
        }
        if (pType.Equals(typeof(long))) {
            long lLParsed;
            if (pValue is long) return true;
            if (long.TryParse(pValue.ToString(), out lLParsed)) {
                pValue = lLParsed;
                return true;
            }
            else if (double.TryParse(pValue.ToString(), out lDParsed)) {
                pValue = (long)lDParsed;
                return true;
            }
            else
                return false;
        }
        if (pType.Equals(typeof(Single))) {
            if (pValue is float) return true;
            Single lSParsed;
            if (Single.TryParse(pValue.ToString(), out lSParsed)
                || Single.TryParse(pValue.ToString().Replace(NumberDecimalSeparatorNOT, NumberDecimalSeparator), out lSParsed)) {
                pValue = lSParsed;
                return true;
            }
            else
                return false;
        }
        if (pType.Equals(typeof(DateTime))) {
            if (pValue is DateTime) return true;
            DateTime lDTParsed;
            if (DateTime.TryParse(pValue.ToString(), out lDTParsed)) {
                pValue = lDTParsed;
                return true;
            }
            else if (pValue.ToString().Contains("UTC")) //Date venant de JScript
            {
                if (_MonthsUTC == null) InitMonthsUTC();
                string[] lDateParts = pValue.ToString().Split(' ');
                lDTParsed = new DateTime(int.Parse(lDateParts[5]), _MonthsUTC[lDateParts[1]], int.Parse(lDateParts[2]));
                lDateParts = lDateParts[3].ToString().Split(':');
                pValue = lDTParsed.AddSeconds(int.Parse(lDateParts[0]) * 3600 + int.Parse(lDateParts[1]) * 60 + int.Parse(lDateParts[2]));
                return true;
            }
            else
                return false;

        }
        if (pType.Equals(typeof(Array))) {
            if (pValue is System.Collections.ICollection || pValue is System.Collections.ArrayList)
                return true;
            return pValue is System.Data.DataTable
                || pValue is string && (pValue as string).StartsWith("<");
        }
        if (pType.Equals(typeof(DataTable))) {
            return pValue is System.Data.DataTable
                || pValue is string && (pValue as string).StartsWith("<");

        }
        if (pType.Equals(typeof(System.Drawing.Bitmap))) {
            return pValue is System.Drawing.Image || pValue is byte[];

        }
        if (pType.Equals(typeof(System.Drawing.Image))) {
            return pValue is System.Drawing.Image || pValue is byte[];

        }
        if (pType.Equals(typeof(System.Drawing.Color))) {
            if (pValue is System.Drawing.Color) return true;
            if (pValue is System.Drawing.KnownColor) {
                pValue = System.Drawing.Color.FromKnownColor((System.Drawing.KnownColor)pValue);
                return true;
            }

            int lARGB;
            if (!int.TryParse(lsValue = pValue.ToString(), out lARGB)) {
                if (lsValue.StartsWith("Color [A=", StringComparison.InvariantCulture)) {
                    foreach (string lsARGB in lsValue.Substring("Color [".Length, lsValue.Length - "Color []".Length).Split(','))
                        switch (lsARGB.TrimStart().Substring(0, 1)) {
                            case "A":
                                lARGB = int.Parse(lsARGB.Substring(2)) * 0x1000000;
                                break;
                            case "R":
                                lARGB += int.Parse(lsARGB.TrimStart().Substring(2)) * 0x10000;
                                break;
                            case "G":
                                lARGB += int.Parse(lsARGB.TrimStart().Substring(2)) * 0x100;
                                break;
                            case "B":
                                lARGB += int.Parse(lsARGB.TrimStart().Substring(2));
                                break;
                            default:
                                break;
                        }
                    pValue = System.Drawing.Color.FromArgb(lARGB);
                    return true;
                }
                if (lsValue.StartsWith("Color [", StringComparison.InvariantCulture)) {
                    pValue = System.Drawing.Color.FromName(lsValue.Substring("Color [".Length, lsValue.Length - "Color []".Length));
                    return true;
                }
                return false;
            }
            pValue = System.Drawing.Color.FromArgb(lARGB);
            return true;
        }
        if (pType.IsEnum) {
            try {
                if (pValue == null) return false;
                if (pValue is int || pValue is byte || pValue is ulong || pValue is long || pValue is double)
                    pValue = Enum.ToObject(pType, pValue);
                else
                    pValue = Enum.Parse(pType, pValue.ToString());
            }
            catch {
                return false;
            }
        }
        return true;
    }
}

回答by dani

You can use a manual sorting algorithm like this

您可以使用这样的手动排序算法

public void ListItemSorter(object sender, ColumnClickEventArgs e)
    {
        ListView list = (ListView)sender;
        int total = list.Items.Count;
        list.BeginUpdate();
        ListViewItem[] items = new ListViewItem[total];
        for (int i = 0; i < total; i++)
        {
            int count = list.Items.Count;
            int minIdx = 0;
            for (int j = 1; j < count; j++)
                if (list.Items[j].SubItems[e.Column].Text.CompareTo(list.Items[minIdx].SubItems[e.Column].Text) < 0)
                    minIdx = j;
            items[i] = list.Items[minIdx];
            list.Items.RemoveAt(minIdx);
        }
        list.Items.AddRange(items);
        list.EndUpdate();
    }

this method uses selection sort in O^2 order and as Ascending. You can change the '>' with '<' for a descending or add an argument for this method. It sorts any column that is clicked and works perfect for small amount of data.

此方法使用 O^2 顺序和升序的选择排序。您可以使用 '<' 更改 '>' 以表示降序或为此方法添加参数。它对单击的任何列进行排序,并且非常适合少量数据。

回答by Dr Archer

Since this is still a top viewed thread, I thought I might note that I came up with a dynamic solution to sort the listview by column. Here's the code just in case someone else wants to use it as well. It pretty much just involves sending the listview items to a datatable, sorting the default view of the datatable by the column name (using the index of the clicked column), and then overwriting that table with the defaultview.totable() method. Then pretty much just add them back to the listview. And wa la, its a sorted listview by column.

由于这仍然是一个热门话题,我想我可能会注意到我想出了一个动态解决方案来按列对列表视图进行排序。这是代码,以防万一其他人也想使用它。它几乎只涉及将列表视图项发送到数据表,按列名(使用单击列的索引)对数据表的默认视图进行排序,然后使用 defaultview.totable() 方法覆盖该表。然后几乎只需将它们添加回列表视图。哇啦,它是按列排序的列表视图。

public void SortListView(int Index)
    {
        DataTable TempTable = new DataTable();
        //Add column names to datatable from listview
        foreach (ColumnHeader iCol in MyListView.Columns)
        {
            TempTable.Columns.Add(iCol.Text);
        }
        //Create a datarow from each listviewitem and add it to the table
        foreach (ListViewItem Item in MyListView.Items)
        {
             DataRow iRow = TempTable.NewRow();
             // the for loop dynamically copies the data one by one instead of doing irow[i] = MyListView.Subitems[1]... so on
            for (int i = 0; i < MyListView.Columns.Count; i++)
            {
                if (i == 0)
                {
                    iRow[i] = Item.Text;
                }
                else
                {
                    iRow[i] = Item.SubItems[i].Text;
                }
            }
            TempTable.Rows.Add(iRow);
        }
        string SortType = string.Empty;
        //LastCol is a public int variable on the form, and LastSort is public string variable
        if (LastCol == Index)
        {
            if (LastSort == "ASC" || LastSort == string.Empty || LastSort == null)
            {
                SortType = "DESC";
                LastSort = "DESC";
            }
            else
            {
                SortType = "ASC";
                LastSort = "ASC";
            }
        }
        else
        {
            SortType = "DESC";
            LastSort = "DESC";
        }
        LastCol = Index;
        MyListView.Items.Clear();
        //Sort it based on the column text clicked and the sort type (asc or desc)
        TempTable.DefaultView.Sort = MyListView.Columns[Index].Text + " " + SortType;
        TempTable = TempTable.DefaultView.ToTable();
        //Create a listview item from the data in each row
        foreach (DataRow iRow in TempTable.Rows)
        {
            ListViewItem Item = new ListViewItem();
            List<string> SubItems = new List<string>();
            for (int i = 0; i < TempTable.Columns.Count; i++)
            {
                if (i == 0)
                {
                    Item.Text = iRow[i].ToString();
                }
                else
                {
                    SubItems.Add(iRow[i].ToString());
                }
            }
            Item.SubItems.AddRange(SubItems.ToArray());
            MyListView.Items.Add(Item);
        }
    }

This method is dynamic as it uses the existing column name and doesn't require you to know the index or name of each column or even how many columns are in the listview/datatable. You can call it by doing creating an event for the listview.columnclick and then SortListView(e.column).

此方法是动态的,因为它使用现有的列名,并且不需要您知道每列的索引或名称,甚至不需要知道列表视图/数据表中有多少列。您可以通过为 listview.columnclick 创建一个事件然后 SortListView(e.column) 来调用它。

回答by Martin

Made minor changes to the article hereto accommodate sorting of both string and numeric values in ListView.

此处的文章进行了细微更改,以适应 ListView 中字符串和数值的排序。

Form1.cs contains

Form1.cs 包含

using System;
using System.Windows.Forms;

namespace ListView
{
    public partial class Form1 : Form
    {
        Random rnd = new Random();
        private ListViewColumnSorter lvwColumnSorter;

        public Form1()
        {
            InitializeComponent();
            // Create an instance of a ListView column sorter and assign it to the ListView control.
            lvwColumnSorter = new ListViewColumnSorter();
            this.listView1.ListViewItemSorter = lvwColumnSorter;

            InitListView();
        }

        private void InitListView()
        {
            listView1.View = View.Details;
            listView1.GridLines = true;
            listView1.FullRowSelect = true;

            //Add column header
            listView1.Columns.Add("Name", 100);
            listView1.Columns.Add("Price", 70);
            listView1.Columns.Add("Trend", 70);

            for (int i = 0; i < 10; i++)
            {
                listView1.Items.Add(AddToList("Name" + i.ToString(), rnd.Next(1, 100).ToString(), rnd.Next(1, 100).ToString()));
            }
        }

        private ListViewItem AddToList(string name, string price, string trend)
        {
            string[] array = new string[3];
            array[0] = name;
            array[1] = price;
            array[2] = trend;

            return (new ListViewItem(array));
        }

        private void listView1_ColumnClick(object sender, ColumnClickEventArgs e)
        {
            // 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 == SortOrder.Ascending)
                {
                    lvwColumnSorter.Order = SortOrder.Descending;
                }
                else
                {
                    lvwColumnSorter.Order = SortOrder.Ascending;
                }
            }
            else
            {
                // Set the column number that is to be sorted; default to ascending.
                lvwColumnSorter.SortColumn = e.Column;
                lvwColumnSorter.Order = SortOrder.Ascending;
            }

            // Perform the sort with these new sort options.
            this.listView1.Sort();
        }

    }
}

ListViewColumnSorter.cs contains

ListViewColumnSorter.cs 包含

using System;
using System.Collections;
using System.Windows.Forms;

/// <summary>
/// This class is an implementation of the 'IComparer' interface.
/// </summary>
public class ListViewColumnSorter : IComparer
{
    /// <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;

    /// <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;

        decimal num = 0;
        if (decimal.TryParse(listviewX.SubItems[ColumnToSort].Text, out num))
        {
            compareResult = decimal.Compare(num, Convert.ToDecimal(listviewY.SubItems[ColumnToSort].Text));
        }
        else 
        {
            // Compare the two items
            compareResult = ObjectCompare.Compare(listviewX.SubItems[ColumnToSort].Text, listviewY.SubItems[ColumnToSort].Text);
        }

        // 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;
        }
    }

}

回答by Hyman Griffin

Based on the example pointed by RedEye, here's a class that needs less code :
it assumes that columns are always sorted in the same way, so it handles the
ColumnClickevent sink internally :

基于 RedEye 指出的示例,这里有一个需要较少代码的类:
它假设列总是以相同的方式排序,因此它在内部处理
ColumnClick事件接收器:

public class ListViewColumnSorterExt : IComparer {
    /// <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 ListView listView;
    /// <summary>
    /// Class constructor.  Initializes various elements
    /// </summary>
    public ListViewColumnSorterExt(ListView lv) {
        listView = lv;
        listView.ListViewItemSorter = this;
        listView.ColumnClick += new ColumnClickEventHandler(listView_ColumnClick);

        // Initialize the column to '0'
        ColumnToSort = 0;

        // Initialize the sort order to 'none'
        OrderOfSort = SortOrder.None;

        // Initialize the CaseInsensitiveComparer object
        ObjectCompare = new CaseInsensitiveComparer();
    }

    private void listView_ColumnClick(object sender, ColumnClickEventArgs e) {
        ReverseSortOrderAndSort(e.Column, (ListView)sender);
    }

    /// <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
        compareResult = ObjectCompare.Compare(listviewX.SubItems[ColumnToSort].Text, listviewY.SubItems[ColumnToSort].Text);

        // 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>
    private int SortColumn {
        set {
            ColumnToSort = value;
        }
        get {
            return ColumnToSort;
        }
    }

    /// <summary>
    /// Gets or sets the order of sorting to apply (for example, 'Ascending' or 'Descending').
    /// </summary>
    private SortOrder Order {
        set {
            OrderOfSort = value;
        }
        get {
            return OrderOfSort;
        }
    }

    private void ReverseSortOrderAndSort(int column, ListView lv) {
        // Determine if clicked column is already the column that is being sorted.
        if (column == this.SortColumn) {
            // Reverse the current sort direction for this column.
            if (this.Order == SortOrder.Ascending) {
                this.Order = SortOrder.Descending;
            }
            else {
                this.Order = SortOrder.Ascending;
            }
        }
        else {
            // Set the column number that is to be sorted; default to ascending.
            this.SortColumn = column;
            this.Order = SortOrder.Ascending;
        }

        // Perform the sort with these new sort options.
        lv.Sort();
    }
}  

Assuming you're happy with the sort options, the class properties are private.

假设您对排序选项感到满意,则类属性是private

The only code you need to write is :

您需要编写的唯一代码是:

in Form declarations

在表单声明中

private ListViewColumnSorterExt listViewColumnSorter;  

in Form constructor

在表单构造函数中

listViewColumnSorter = new ListViewColumnSorterExt(ListView1);  

... and you're done.

......你就完成了。

And what about a single sorter that handles multiple ListViews ?

那么处理多个 ListView 的单个排序器呢?

public class MultipleListViewColumnSorter {
    private List<ListViewColumnSorterExt> sorters;

    public MultipleListViewColumnSorter() {
        sorters = new List<ListViewColumnSorterExt>();
    }

    public void AddListView(ListView lv) {
        sorters.Add(new ListViewColumnSorterExt(lv));
    }
}  

in Form declarations

在表单声明中

private MultipleListViewColumnSorter listViewSorter = new MultipleListViewColumnSorter();  

in Form constructor

在表单构造函数中

listViewSorter.AddListView(ListView1);  
listViewSorter.AddListView(ListView2);  
// ... and so on ...