[DEVEXPRESS/WINFORM] TreeList 클래스 : GetStateImage 이벤트를 사용해 노드 상태 이미지 설정하기
DevExpress/WinForm 2020. 5. 30. 11:55■ TreeList 클래스 : GetStateImage 이벤트를 사용해 노드 상태 이미지 설정하기
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▶ MainForm.cs
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.GetStateImage += treeList_GetStateImage; }
#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.StateImageList = 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 상태 이미지 구하기 - treeList_GetStateImage(sender, e)
/// <summary> /// 트리 리스트 상태 이미지 구하기 /// </summary> /// <param name="sender">이벤트 발생자</param> /// <param name="e">이벤트 인자</param> private void treeList_GetStateImage(object sender, GetStateImageEventArgs e) { TreeList treeList = sender as TreeList;
if(treeList.IsAutoFilterNode(e.Node)) { return; }
e.NodeImageIndex = e.Node.GetValue("Region").ToString().StartsWith("B") ? 2 : -1; }
#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; node.SelectImageIndex = 1;
SetNodeImage(node.Nodes); } }
#endregion } }
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