[C#/WINFORM/DEVEXPRESS] TreeList 클래스 : BeginSort/EndSource 메소드를 사용해 정렬시 불필요한 업데이트 방지하기

■ TreeList 클래스의 BeginSort/EndSource 메소드를 사용해 정렬시 불필요한 업데이트를 방지하는 방법을 보여준다.

▶ MainForm.cs


using System;
using System.Windows.Forms;

using DevExpress.XtraEditors;

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

        #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.DataSource = SalesData.GetSalesDataList();

            this.treeList.Columns[this.treeList.KeyFieldName   ].Visible = false;
            this.treeList.Columns[this.treeList.ParentFieldName].Visible = false;

            this.treeList.BeginSort();

            this.treeList.Columns["MarchSales"    ].SortOrder = SortOrder.Descending;
            this.treeList.Columns["SeptemberSales"].SortOrder = SortOrder.Descending;

            this.treeList.EndSort();

            this.treeList.BestFitColumns();
        }

        #endregion
    }
}

using System;

using System.Windows.Forms;

using DevExpress.XtraEditors;

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

#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.DataSource = SalesData.GetSalesDataList();

this.treeList.Columns[this.treeList.KeyFieldName ].Visible = false;

this.treeList.Columns[this.treeList.ParentFieldName].Visible = false;

this.treeList.BeginSort();

this.treeList.Columns["MarchSales" ].SortOrder = SortOrder.Descending;

this.treeList.Columns["SeptemberSales"].SortOrder = SortOrder.Descending;

this.treeList.EndSort();

this.treeList.BestFitColumns();

}

#endregion

}

TestProject.zip