■ ChartControl 클래스의 BoundDataChanged 이벤트를 사용해 바인딩 데이터 변경시 처리하는 방법을 보여준다.
▶ MainForm.cs
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using System; using System.Data; using System.Windows.Forms; using DevExpress.XtraCharts; namespace TestProject { /// <summary> /// 메인 폼 /// </summary> public partial class MainForm : Form { //////////////////////////////////////////////////////////////////////////////////////////////////// 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) { ChartControl chartControl = new ChartControl(); chartControl.SeriesDataMember = "Month"; chartControl.SeriesTemplate.ArgumentDataMember = "Section"; chartControl.SeriesTemplate.ValueDataMembers.AddRange(new string[] { "Value" }); chartControl.SeriesTemplate.View = new SideBySideBarSeriesView(); chartControl.BoundDataChanged += chartControl_BoundDataChanged; chartControl.SeriesNameTemplate.BeginText = "Month : "; chartControl.Dock = DockStyle.Fill; Controls.Add(chartControl); chartControl.DataSource = GetChartControlData(); } #endregion #region 차트 컨트롤 바인딩 데이터 변경시 처리하기 - chartControl_BoundDataChanged(sender, e) /// <summary> /// 차트 컨트롤 바인딩 데이터 변경시 처리하기 /// </summary> /// <param name="sender">이벤트 발생자</param> /// <param name="e">이벤트 인자</param> private void chartControl_BoundDataChanged(object sender, EventArgs e) { ChartControl chartControl = sender as ChartControl; Series februarySeries = chartControl.GetSeriesByName("Month : Feb"); if(februarySeries != null) { februarySeries.ChangeView(ViewType.Line); } Series marchSeries = chartControl.GetSeriesByName("Month : March"); if(marchSeries != null) { marchSeries.ChangeView(ViewType.Spline); } } #endregion //////////////////////////////////////////////////////////////////////////////// Function #region 차트 컨트롤 데이터 구하기 - GetChartControlData() /// <summary> /// 차트 컨트롤 데이터 구하기 /// </summary> /// <returns>차트 컨트롤 데이터</returns> private DataTable GetChartControlData() { DataTable table = new DataTable("Table1"); table.Columns.Add("Month" , typeof(string)); table.Columns.Add("Section", typeof(string)); table.Columns.Add("Value" , typeof(int )); table.Rows.Add(new object[] { "Jan" , "Section1", 10 }); table.Rows.Add(new object[] { "Jan" , "Section2", 20 }); table.Rows.Add(new object[] { "Jan" , "Section3", 40 }); table.Rows.Add(new object[] { "Feb" , "Section1", 20 }); table.Rows.Add(new object[] { "Feb" , "Section2", 30 }); table.Rows.Add(new object[] { "Feb" , "Section3", 80 }); table.Rows.Add(new object[] { "March", "Section1", 30 }); table.Rows.Add(new object[] { "March", "Section2", 40 }); table.Rows.Add(new object[] { "March", "Section3", 100 }); return table; } #endregion } } |
