[DEVEXPRESS/WINFORM] IVirtualTreeListData 인터페이스 : 트리 리스트 가상 모드 사용하기

TestProject.zip

다운로드

▶ Node.cs

using System.Collections.Generic;

using DevExpress.XtraTreeList;

namespace TestProject
{
    /// <summary>
    /// 노드
    /// </summary>
    public class Node : TreeList.IVirtualTreeListData
    {
        //////////////////////////////////////////////////////////////////////////////////////////////////// Field
        ////////////////////////////////////////////////////////////////////////////////////////// Private

        #region Field

        /// <summary>
        /// 부모
        /// </summary>
        private Node parent;

        /// <summary>
        /// 자식 리스트
        /// </summary>
        private List<Node> childList = new List<Node>();

        /// <summary>
        /// 셀 배열
        /// </summary>
        private object[] cellArray;

        #endregion

        //////////////////////////////////////////////////////////////////////////////////////////////////// Constructor
        ////////////////////////////////////////////////////////////////////////////////////////// Public

        #region 생성자 - Node(parent, cellArray)

        /// <summary>
        /// 생성자
        /// </summary>
        /// <param name="parent">부모</param>
        /// <param name="cellArray">셀 배열</param>
        public Node(Node parent, object[] cellArray)
        {
            this.parent    = parent;
            this.cellArray = cellArray;

            if(this.parent != null)
            {
                this.parent.childList.Add(this);
            }
        }

        #endregion

        //////////////////////////////////////////////////////////////////////////////////////////////////// Method
        ////////////////////////////////////////////////////////////////////////////////////////// Public

        #region 가상 트리 자식 노드들 구하기 - VirtualTreeGetChildNodes(info)

        /// <summary>
        /// 가상 트리 자식 노드들 구하기
        /// </summary>
        /// <param name="info">정보</param>
        void TreeList.IVirtualTreeListData.VirtualTreeGetChildNodes(VirtualTreeGetChildNodesInfo info)
        {
            info.Children = this.childList;
        }

        #endregion
        #region 가상 트리 셀 값 구하기 - VirtualTreeGetCellValue(info)

        /// <summary>
        /// 가상 트리 셀 값 구하기
        /// </summary>
        /// <param name="info"></param>
        void TreeList.IVirtualTreeListData.VirtualTreeGetCellValue(VirtualTreeGetCellValueInfo info)
        {
            info.CellData = this.cellArray[info.Column.AbsoluteIndex];
        }

        #endregion
        #region 가상 트리 셀 값 설정하기 - VirtualTreeSetCellValue(info)

        /// <summary>
        /// 가상 트리 셀 값 설정하기
        /// </summary>
        /// <param name="info"></param>
        void TreeList.IVirtualTreeListData.VirtualTreeSetCellValue(VirtualTreeSetCellValueInfo info)
        {
            this.cellArray[info.Column.AbsoluteIndex] = info.NewCellData;
        }

        #endregion
    }
}

 

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▶ MainForm.cs

using System;

using DevExpress.XtraEditors;
using DevExpress.XtraTreeList.Columns;

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;
        }

        #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)
        {
            Node dataSource = new Node(null, null);

            Node node1 = new Node(dataSource, new string[] { "CEO", "High"                                      });
            Node node2 = new Node(node1     , new string[] { "Sales", "Normal"                                  });
            Node node3 = new Node(node2     , new string[] { "Direct vs Online Sales Comparison Report", "High" });
            Node node4 = new Node(node2     , new string[] { "Training Events"                         , "Low"  });
            Node node5 = new Node(dataSource, new string[] { "HR department"                           , "High" });
            Node node6 = new Node(node5     , new string[] { "Update Employee Files with New NDA"      , "High" });

            TreeListColumn nameColumn = new TreeListColumn();

            nameColumn.Caption      = "Name";
            nameColumn.VisibleIndex = 0;

            TreeListColumn rankColumn = new TreeListColumn();

            rankColumn.Caption      = "Rank";
            rankColumn.VisibleIndex = 1;

            this.treeList.Columns.AddRange(new TreeListColumn[] { nameColumn, rankColumn });

            this.treeList.DataSource = dataSource;
        }

        #endregion
    }
}