'宣言 Public Overloads Overrides Function GetContext( _ ByVal type As Type, _ ByVal checkParentElementContexts As Boolean _ ) As Object
public override object GetContext( Type type, bool checkParentElementContexts )
Imports Infragistics.Win Imports System.Drawing Imports System.Diagnostics Public Function GetRowCellCount(ByVal pt As Point) As Integer ' Determine if we clicked on a row, first get the element under the mouse. Dim elementUnderMouse As UIElement elementUnderMouse = Me.UltraGrid1.DisplayLayout.UIElement.ElementFromPoint(pt) If Not elementUnderMouse Is Nothing Then Dim elementRow As UIElement elementRow = elementUnderMouse.GetAncestor(GetType(UltraWinGrid.RowUIElement)) If Not elementRow Is Nothing Then ' You now have the row element to do with as you please. ' Get the count of the cells collection Dim row As UltraWinGrid.UltraGridRow = elementRow.GetContext(GetType(UltraWinGrid.UltraGridRow)) If Not row Is Nothing Then Debug.WriteLine(row.Cells.Count.ToString()) Return row.Cells.Count End If End If End If Return 0 End Function
using Infragistics.Win; using System.Drawing; using System.Diagnostics; private int GetRowCellCount(Point pt) { // Determine if we clicked on a row UIElement elementUnderMouse = this.ultraGrid1.DisplayLayout.UIElement.ElementFromPoint(pt); if (null != elementUnderMouse) { UIElement elementRow = elementUnderMouse.GetAncestor(typeof(UltraWinGrid.RowUIElement )); if (null != elementRow) { // You now have the row element to do with as you please. // Get the count of the cells collection UltraWinGrid.UltraGridRow row = elementRow.GetContext(typeof(UltraWinGrid.UltraGridRow)) as UltraWinGrid.UltraGridRow ; if (null != row) { Debug.WriteLine(row.Cells.Count.ToString()); return row.Cells.Count; } } } return 0; }