■ GridView 클래스의 CustomDrawEmptyForeground 이벤트를 사용해 데이터가 없을 때 텍스트를 표시하는 방법을 보여준다.
▶ MainForm.cs
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using System.Drawing; using System.Windows.Forms; using DevExpress.Data.Filtering; using DevExpress.LookAndFeel; using DevExpress.Skins; using DevExpress.Utils; using DevExpress.XtraEditors; 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> /// 링크 브러시 /// </summary> private SolidBrush linkBrush = new SolidBrush(EditorsSkins.GetSkin(UserLookAndFeel.Default.ActiveLookAndFeel).Colors["HyperLinkTextColor"]); /// <summary> /// 매칭 미발견 텍스트 폰트 /// </summary> private Font noMatchFoundTextFont = new Font("Tahoma", 10); /// <summary> /// 매칭 미발견 텍스트 /// </summary> private string noMatchFoundText = "No matches found"; /// <summary> /// 매칭 미발견 사각형 /// </summary> private Rectangle noMatchFoundRectangle = Rectangle.Empty; /// <summary> /// 다시 조회 시도 텍스트 폰트 /// </summary> private Font trySearchingAgainTextFont = new Font("Tahoma", 15, FontStyle.Underline); /// <summary> /// 다시 조회 시도 텍스트 볼드체 폰트 /// </summary> private Font trySearchingAgainTextBoldFont = new Font("Tahoma", 15, FontStyle.Underline | FontStyle.Bold); /// <summary> /// 다시 조회 시도 텍스트 /// </summary> private string trySearchingAgainText = "Try searching again"; /// <summary> /// 다시 조회 시도 사각형 /// </summary> private Rectangle trySearchingAgainRectangle = Rectangle.Empty; /// <summary> /// 다시 조회 시도 사각형 커서 포함 여부 /// </summary> private bool trySearchingAgainRectangleContainCursor = false; /// <summary> /// 오프셋 /// </summary> private int offset = 10; /// <summary> /// 조회명 /// </summary> private string searchName = string.Empty; #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Constructor ////////////////////////////////////////////////////////////////////////////////////////// Public #region 생성자 - MainForm() /// <summary> /// 생성자 /// </summary> public MainForm() { InitializeComponent(); this.gridView.InitializeView ( true, // Multi Select GridMultiSelectMode.RowSelect, // 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 = new nwindDataSetTableAdapters.EmployeesTableAdapter().GetData(); this.gridView.ActiveFilterCriteria = new BinaryOperator("City", searchName); this.gridView.CustomDrawEmptyForeground += gridView_CustomDrawEmptyForeground; this.gridView.MouseMove += gridView_MouseMove; this.gridView.MouseDown += gridView_MouseDown; } #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Method ////////////////////////////////////////////////////////////////////////////////////////// Private #region 그리드 뷰 빈 전경 커스텀 그리기 - gridView_CustomDrawEmptyForeground(sender, e) /// <summary> /// 그리드 뷰 빈 전경 커스텀 그리기 /// </summary> /// <param name="sender">이벤트 발생자</param> /// <param name="e">이벤트 인자</param> private void gridView_CustomDrawEmptyForeground(object sender, CustomDrawEventArgs e) { e.DefaultDraw(); e.Appearance.Options.UseFont = true; e.Appearance.Font = this.noMatchFoundTextFont; Size size = e.Appearance.CalcTextSize(e.Cache, this.noMatchFoundText, e.Bounds.Width).ToSize(); int x = (e.Bounds.Width - size.Width) / 2; int y = e.Bounds.Y + offset; this.noMatchFoundRectangle = new Rectangle(new Point(x, y), size); e.Appearance.DrawString(e.Cache, this.noMatchFoundText, this.noMatchFoundRectangle); e.Appearance.Font = this.trySearchingAgainRectangleContainCursor ? this.trySearchingAgainTextBoldFont : this.trySearchingAgainTextFont; size = e.Appearance.CalcTextSize(e.Cache, this.trySearchingAgainText, e.Bounds.Width).ToSize(); x = this.noMatchFoundRectangle.X - (size.Width - this.noMatchFoundRectangle.Width) / 2; y = this.noMatchFoundRectangle.Bottom + offset; size.Width += offset; this.trySearchingAgainRectangle = new Rectangle(new Point(x, y), size); e.Appearance.DrawString(e.Cache, this.trySearchingAgainText, this.trySearchingAgainRectangle, this.linkBrush); } #endregion #region 그리드 뷰 마우스 이동시 처리하기 - gridView_MouseMove(sender, e) /// <summary> /// 그리드 뷰 마우스 이동시 처리하기 /// </summary> /// <param name="sender">이벤트 발생자</param> /// <param name="e">이벤트 인자</param> private void gridView_MouseMove(object sender, MouseEventArgs e) { GridView gridView = sender as GridView; this.trySearchingAgainRectangleContainCursor = this.trySearchingAgainRectangle.Contains(e.Location); gridView.GridControl.Cursor = this.trySearchingAgainRectangleContainCursor ? Cursors.Hand : Cursors.Default; gridView.InvalidateRect(this.trySearchingAgainRectangle); } #endregion #region 그리드 뷰 마우스 DOWN 처리하기 - gridView_MouseDown(sender, e) /// <summary> /// 그리드 뷰 마우스 DOWN 처리하기 /// </summary> /// <param name="sender">이벤트 발생자</param> /// <param name="e">이벤트 인자</param> private void gridView_MouseDown(object sender, MouseEventArgs e) { GridView gridView = sender as GridView; if(this.trySearchingAgainRectangleContainCursor) { this.searchName = XtraInputBox.Show ( string.Format("Enter {0}", "Name"), string.Format("Enter {0} dialog", "Name"), this.searchName ); gridView.ActiveFilterCriteria = new BinaryOperator("City", this.searchName); } } #endregion } } |
