■ GridView 클래스의 ValidateRow 이벤트를 사용해 행을 검증하는 방법을 보여준다.
▶ MainForm.cs
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using System.Data.OleDb; using DevExpress.Utils; using DevExpress.XtraEditors; using DevExpress.XtraEditors.Controls; using DevExpress.XtraGrid.Columns; using DevExpress.XtraGrid.Views.Base; 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 true // Editable ); this.gridView.OptionsBehavior.AutoPopulateColumns = true; this.gridControl.DataSource = Product.GetProductList(this.connection); this.gridView.BestFitColumns(); this.gridView.ValidateRow += gridView_ValidateRow; this.gridView.InvalidRowException += gridView_InvalidRowException; } #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Method ////////////////////////////////////////////////////////////////////////////////////////// Private #region 그리드 뷰 행 검증하기 - gridView_ValidateRow(sender, e) /// <summary> /// 그리드 뷰 행 검증하기 /// </summary> /// <param name="sender">이벤트 발생자</param> /// <param name="e">이벤트 인자</param> private void gridView_ValidateRow(object sender, ValidateRowEventArgs e) { GridView gridView = sender as GridView; GridColumn unitsOnOrderColumn = gridView.Columns["UnitsOnOrder"]; GridColumn unitsInStockColumn = gridView.Columns["UnitsInStock"]; decimal unitsOnOrder = (decimal)gridView.GetRowCellValue(e.RowHandle, unitsOnOrderColumn); decimal unitsInStock = (decimal)gridView.GetRowCellValue(e.RowHandle, unitsInStockColumn); if(unitsOnOrder > unitsInStock) { e.Valid = false; gridView.SetColumnError(unitsInStockColumn, "주문 단위보다 큽니다." ); gridView.SetColumnError(unitsOnOrderColumn, "재고 단위보다 작습니다."); } } #endregion #region 그리드 뷰 무효 행 예외 처리하기 - gridView_InvalidRowException(sender, e) /// <summary> /// 그리드 뷰 무효 행 예외 처리하기 /// </summary> /// <param name="sender">이벤트 발생자</param> /// <param name="e">이벤트 인자</param> private void gridView_InvalidRowException(object sender, InvalidRowExceptionEventArgs e) { e.ExceptionMode = ExceptionMode.DisplayError; } #endregion } } |
