■ TreeList 클래스의 GetSelectImage 이벤트를 사용해 포커스 노드의 이미지를 설정하는 방법을 보여준다.
▶ MainForm.cs
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using System; using DevExpress.XtraEditors; using DevExpress.XtraTreeList; using DevExpress.XtraTreeList.Nodes; namespace TestProject { /// <summary> /// 메인 폼 /// </summary> public partial class MainForm : XtraForm { //////////////////////////////////////////////////////////////////////////////////////////////////// Constructor ////////////////////////////////////////////////////////////////////////////////////////// Public #region 생성자 - MainForm() /// <summary> /// 생성자 /// </summary> public MainForm() { InitializeComponent(); Load += Form_Load; this.treeList.GetSelectImage += treeList_GetSelectImage; } #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Method ////////////////////////////////////////////////////////////////////////////////////////// Private //////////////////////////////////////////////////////////////////////////////// Event #region 폼 로드시 처리하기 - Form_Load(sender, e) /// <summary> /// 폼 로드시 처리하기 /// </summary> /// <param name="sender">이벤트 발생자</param> /// <param name="e">이벤트 인자</param> private void Form_Load(object sender, EventArgs e) { this.treeList.RowHeight = 25; this.treeList.OptionsView.AutoWidth = false; this.treeList.OptionsBehavior.ReadOnly = true; this.treeList.OptionsBehavior.PopulateServiceColumns = true; this.treeList.KeyFieldName = "ID"; this.treeList.ParentFieldName = "RegionID"; this.treeList.SelectImageList = this.svgImageCollection; this.treeList.DataSource = SalesData.GetSalesDataList(); this.treeList.Columns[this.treeList.KeyFieldName ].Visible = false; this.treeList.Columns[this.treeList.ParentFieldName].Visible = false; SetNodeImage(this.treeList.Nodes); this.treeList.BestFitColumns(); this.treeList.ExpandAll(); } #endregion #region 트리 리스트 선택 이미지 구하기 - treeList_GetSelectImage(sender, e) /// <summary> /// 트리 리스트 선택 이미지 구하기 /// </summary> /// <param name="sender">이벤트 발생자</param> /// <param name="e">이벤트 인자</param> private void treeList_GetSelectImage(object sender, GetSelectImageEventArgs e) { if(e.FocusedNode) { e.NodeImageIndex = 2; } else { e.NodeImageIndex = 0; } } #endregion //////////////////////////////////////////////////////////////////////////////// Function #region 노드 이미지 설정하기 - SetNodeImage(nodes) /// <summary> /// 노드 이미지 설정하기 /// </summary> /// <param name="nodes">노드</param> private void SetNodeImage(TreeListNodes nodes) { if(nodes.Count == 0) { return; } foreach(TreeListNode node in nodes) { node.ImageIndex = 0; SetNodeImage(node.Nodes); } } #endregion } } |
