[C#/PDA]ListView Column Sorting 예제 소스

.net Compact Framework으로 프로그램 개발 시 ListView를 이용하는 경우가 많습니다.

가끔 고객 요구 사항 중 컬럼 클릭 했을 경우 Sorting 기능을 요구할때 사용할 만한 예제이오니 참고해보세요...

1. 클래스를 생성

using System;
using System.Linq;
using System.Collections.Generic;
using System.Text;

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

public class SortWrapper
{
    internal ListViewItem sortItem;
    internal int sortColumn;

    // A SortWrapper requires the item and the index of the clicked column.
    public SortWrapper(ListViewItem Item, int iColumn)
    {
        sortItem = Item;
        sortColumn = iColumn;
    }

    // Text property for getting the text of an item.
    public string Text
    {
        get
        {
            return sortItem.SubItems[sortColumn].Text;
        }
    }

    // Implementation of the IComparer
    // interface for sorting ArrayList items.
    public class SortComparer : IComparer
    {
        bool ascending;

        // Constructor requires the sort order;
        // true if ascending, otherwise descending.
        public SortComparer(bool asc)
        {
            this.ascending = asc;
        }

        // Implemnentation of the IComparer:Compare
        // method for comparing two objects.
        public int Compare(object x, object y)
        {
            SortWrapper xItem = (SortWrapper)x;
            SortWrapper yItem = (SortWrapper)y;

            string xText = xItem.sortItem.SubItems[xItem.sortColumn].Text;
            string yText = yItem.sortItem.SubItems[yItem.sortColumn].Text;
            return xText.CompareTo(yText) * (this.ascending ? 1 : -1);
        }
    }
}

public class ColHeader : ColumnHeader
{
    public bool ascending;
    public ColHeader(string text, int width, HorizontalAlignment align, bool asc)
    {
        this.Text = text;
        this.Width = width;
        this.TextAlign = align;
        this.ascending = asc;
    }
}

2. 소스부분-컬럼 추가

public Form1()

{

InitializeComponent();

//ListView Column Add

listView1.Columns.Add(new ColHeader("자산번호", 110, HorizontalAlignment.Left, true));
listView1.Columns.Add(new ColHeader("자산명", 90, HorizontalAlignment.Left, true));
listView1.Columns.Add(new ColHeader("구분", 60, HorizontalAlignment.Center, true));
listView1.Columns.Add(new ColHeader("상태", 60, HorizontalAlignment.Center, true));

}

3. 소스-구현부(listview의 ColumnClick 이벤트 추가 후 작업)

private void listView1_ColumnClick(object sender, ColumnClickEventArgs e)
{
    try
    {
        ColHeader clickedCol = (ColHeader)this.listView1.Columns[e.Column];

        clickedCol.ascending = !clickedCol.ascending;

        int numItems = this.listView1.Items.Count;

        this.listView1.BeginUpdate();

        ArrayList SortArray = new ArrayList();
        for (int i = 0; i < numItems; i++)
        {
            SortArray.Add(new SortWrapper(this.listView1.Items[i], e.Column));
        }

        SortArray.Sort(0, SortArray.Count, new SortWrapper.SortComparer(clickedCol.ascending));

        // Clear the list, and repopulate with the sorted items.
        this.listView1.Items.Clear();

        for (int i = 0; i < numItems; i++)
            this.listView1.Items.Add(((SortWrapper)SortArray[i]).sortItem);

        SortArray.Clear();

        // Turn display back on.
        this.listView1.EndUpdate();
    }
    catch (Exception ex)
    {
        MessageBox.Show(ex.Message);
    }
}