[DEVEXPRESS/WINFORM] TreeList 클래스 : GetStateImage 이벤트를 사용해 노드 상태 이미지 설정하기
DevExpress/WinForm 2020. 5. 30. 11:55728x90
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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
}
}728x90
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