■ ListView 클래스에서 컬럼 헤더 클릭시 정렬하는 방법을 보여준다.
▶ 예제 코드 (C#)
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using System; using System.Collections; using System.Windows.Forms; /// <summary> /// ListView 항목 비교자 /// </summary> public class ListViewItemComparer : IComparer { //////////////////////////////////////////////////////////////////////////////////////////////////// Field ////////////////////////////////////////////////////////////////////////////////////////// Private #region Field /// <summary> /// 컬럼 인덱스 /// </summary> private int columnIndex; /// <summary> /// 정렬 순서 /// </summary> private string sortOrder = "ASC"; #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Property ////////////////////////////////////////////////////////////////////////////////////////// Public #region 컬럼 인덱스 - ColumnIndex /// <summary> /// 컬럼 인덱스 /// </summary> public int ColumnIndex { get { return this.columnIndex; } set { if(value < 0) { throw new ArgumentOutOfRangeException("value"); } this.columnIndex = value; } } #endregion #region 정렬 순서 - SortOrder /// <summary> /// 정렬 순서 /// </summary> public string SortOrder { get { return this.sortOrder; } set { string sortOrder = value.ToUpper(); if(!sortOrder.Equals("ASC") && !sortOrder.Equals("DESC")) { throw new ArgumentOutOfRangeException("value"); } this.sortOrder = sortOrder; } } #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Constructor ////////////////////////////////////////////////////////////////////////////////////////// Public #region 생성자 - ListViewItemComparer() /// <summary> /// 생성자 /// </summary> public ListViewItemComparer() { ColumnIndex = 0; } #endregion #region 생성자 - ListViewItemComparer(columnIndex, sortOrder) /// <summary> /// 생성자 /// </summary> /// <param name="columnIndex">컬럼 인덱스</param> /// <param name="sortOrder">정렬 순서</param> public ListViewItemComparer(int columnIndex, string sortOrder) { ColumnIndex = columnIndex; SortOrder = sortOrder; } #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Method ////////////////////////////////////////////////////////////////////////////////////////// Public #region 비교하기 - Comparer(object1, object2) /// <summary> /// 비교하기 /// </summary> /// <param name="object1">객체 1</param> /// <param name="object2">객체 2</param> /// <returns>처리 결과</returns> public int Comparer(object object1, object object2) { if(this.sortOrder.Equals("ASC")) { return string.Compare ( ((ListViewItem)object1).SubItems[this.columnIndex].Text, ((ListViewItem)object2).SubItems[this.columnIndex].Text ); } else { return string.Compare ( ((ListViewItem)object2).SubItems[this.columnIndex].Text, ((ListViewItem)object1).SubItems[this.columnIndex].Text ); } } #endregion } ... /// <summary> /// 리스트 뷰 /// </summary> private ListView listView; ... this.listView.ColumnClick += listView_ColumnClick; ... #region ListView 컬럼 클릭시 처리하기 - listView_ColumnClick(sender, e) /// <summary> /// ListView 컬럼 클릭시 처리하기 /// </summary> /// <param name="sender">이벤트 발생자</param> /// <param name="e">이벤트 인자</param> private void listView_ColumnClick(object sender, ColumnClickEventArgs e) { for(int i = 0; i < this.listView.Columns.Count; i++) { this.listView.Columns[i].Text = this.listView.Columns[i].Text.Replace(" ▽", string.Empty); this.listView.Columns[i].Text = this.listView.Columns[i].Text.Replace(" △", string.Empty); } if(this.listView.Sorting == SortOrder.Ascending || this.listView.Sorting == SortOrder.None) { this.listView.ListViewItemSorter = new ListViewItemComparer(e.Column, "DESC"); this.listView.Sorting = SortOrder.Descending; this.listView.Columns[e.Column].Text = this.listView.Columns[e.Column].Text + " ▽"; } else { this.listView.ListViewItemSorter = new ListViewItemComparer(e.Column, "ASC"); this.listView.Sorting = SortOrder.Ascending; this.listView.Columns[e.Column].Text = this.listView.Columns[e.Column].Text + " △"; } this.listView.Sort(); this.listView.ListViewItemSorter = null; } #endregion |