[INFRAGISTICS/WINFORM] UltraGrid 클래스 : 가상 모드 사용하기

using System;

using Infragistics.Win.UltraWinDataSource; 
using Infragistics.Win.UltraWinGrid;

private UltraGrid ultraGrid;

private UltraDataSource ultraDataSource;

private Random random = new Random();

...

#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.ultraGrid.DataSource = this.ultraDataSource; 
   
    this.ultraDataSource.Band.Key = "ParentBand";

    this.ultraDataSource.Band.Columns.Add("ID"  , typeof(int   ));
    this.ultraDataSource.Band.Columns.Add("Col0", typeof(int   ));
    this.ultraDataSource.Band.Columns.Add("Col1", typeof(string));
   
    UltraDataBand childBand = this.ultraDataSource.Band.ChildBands.Add("ChildBand");
   
    childBand.Columns.Add("ChildCol0", typeof(double  ));
    childBand.Columns.Add("ChildCol1", typeof(DateTime));
   
    this.ultraDataSource.Rows.SetCount(100);
   
    UltraDataColumn column = this.ultraDataSource.Band.Columns["ID"];

    for(int i = 0; i < this.ultraDataSource.Rows.Count; i++ ) 
    {
        this.ultraDataSource.Rows[i][column] = i; 
    }
}

#endregion

#region UltraDataSource 셀 데이터 요청시 처리하기 - ultraDataSource_CellDataRequested(sender, e)

/// <summary>
/// UltraDataSource 셀 데이터 요청시 처리하기
/// </summary>
/// <param name="sender">이벤트 발생자</param>
/// <param name="e">이벤트 인자</param>
private void ultraDataSource_CellDataRequested(object sender, CellDataRequestedEventArgs e)
{ 
    UltraDataRow row = e.Row;

    if(e.Column.Band.Key == "ParentBand")
    {
        switch(e.Column.Key)
        {
            case "Col0" : e.Data = this.random.Next();             break;
            case "Col1" : e.Data = "String " + this.random.Next(); break;
        }
    }
    else if(e.Column.Band.Key == "ChildBand")
    {
        switch(e.Column.Key)
        {
            case "ChildCol0" : e.Data = this.random.NextDouble();                     break;
            case "ChildCol1" : e.Data = DateTime.Now.AddDays(this.random.Next(1000)); break;
        }
    }

    e.CacheData = true;
}

#endregion

#region UltraDataSource 행 컬렉션 초기화 하기 - ultraDataSource_InitializeRowsCollection(sender, e)

/// <summary>
/// UltraDataSource 행 컬렉션 초기화 하기
/// </summary>
/// <param name="sender">이벤트 발생자</param>
/// <param name="e">이벤트 인자</param>
private void ultraDataSource_InitializeRowsCollection(object sender, Infragistics.Win.UltraWinDataSource.InitializeRowsCollectionEventArgs e)
{
    if("ChildBand" == e.Rows.Band.Key)
    {
        e.Rows.SetCount(10);
    }
}

#endregion