■ GridView 클래스의 TopRowChanged 이벤트를 사용해 상위 행 변경시 처리하는 방법을 보여준다.
▶ MainForm.cs
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using System; using System.Data.OleDb; using DevExpress.Utils; using DevExpress.XtraEditors; using DevExpress.XtraGrid.Views.Grid; namespace TestProject { /// <summary> /// 메인 폼 /// </summary> public partial class MainForm : XtraForm { //////////////////////////////////////////////////////////////////////////////////////////////////// Field ////////////////////////////////////////////////////////////////////////////////////////// Private #region Field /// <summary> /// 연결 /// </summary> private OleDbConnection connection; #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Constructor ////////////////////////////////////////////////////////////////////////////////////////// Public #region 생성자 - MainForm() /// <summary> /// 생성자 /// </summary> public MainForm() { InitializeComponent(); this.connection = new OleDbConnection("Provider=Microsoft.Jet.OLEDB.4.0;Data Source=nwind.mdb"); this.gridView.InitializeView ( true, // Multi Select GridMultiSelectMode.CellSelect, // Grid Multi Select Mode DrawFocusRectStyle.CellFocus, // Draw Focus Rect Style true, // Show Indicator true, // Show Column Headers true, // Allow Column Moving true, // Allow Column Resizing true, // Allow Filter true, // Allow Sort false, // Allow Cell Merge EditorShowMode.Default, // Editor Show Mode false // Editable ); this.gridView.OptionsBehavior.AutoPopulateColumns = true; this.gridControl.DataSource = Product.GetProductList(this.connection); this.gridView.BestFitColumns(); this.gridView.TopRowChanged += gridView_TopRowChanged; } #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Method ////////////////////////////////////////////////////////////////////////////////////////// Private //////////////////////////////////////////////////////////////////////////////// Event #region 그리드 뷰 상위 행 변경시 처리하기 - gridView_TopRowChanged(sender, e) /// <summary> /// 그리드 뷰 상위 행 변경시 처리하기 /// </summary> /// <param name="sender">이벤트 발생자</param> /// <param name="e">이벤트 인자</param> private void gridView_TopRowChanged(object sender, EventArgs e) { UpdateStatus(); } #endregion //////////////////////////////////////////////////////////////////////////////// Function #region 마지막 표시 행 핸들 구하기 - GetLastVisibleRowHandle() /// <summary> /// 마지막 표시 행 핸들 구하기 /// </summary> /// <returns>마지막 표시 행 핸들</returns> private int GetLastVisibleRowHandle() { int rowHandle = 0; for(int visibleIndex = this.gridView.TopRowIndex + 1; visibleIndex < this.gridView.RowCount; visibleIndex++) { rowHandle = this.gridView.GetVisibleRowHandle(visibleIndex); if(this.gridView.IsRowVisible(rowHandle) == RowVisibleState.Hidden) { break; } } return rowHandle - 1; } #endregion #region 상태 업데이트하기 - UpdateStatus() /// <summary> /// 상태 업데이트하기 /// </summary> private void UpdateStatus() { int topRowHandle = this.gridView.GetVisibleRowHandle(this.gridView.TopRowIndex); double topRowValue = Convert.ToDouble ( this.gridView.GetRowCellValue ( topRowHandle, this.gridView.Columns["UnitPrice"] ) ); double bottomRowValue = Convert.ToDouble ( this.gridView.GetRowCellValue ( GetLastVisibleRowHandle(), this.gridView.Columns["UnitPrice"] ) ); this.statusLabelControl.Text = string.Format("단가 : {0:c2} - {1:c2}", topRowValue, bottomRowValue); } #endregion } } |
