如何確定在XCeed Datagrid中哪個列被雙擊？

Question

我有一個從DataTable填充的XCeed Datagrid。當用戶雙擊一個單元格時，我希望能夠確定從哪一行中選擇了哪一列。我怎麼做？

Answer 1

那麼，現在看來，簡潔地提出問題是受到懲罰的，我根本看不出提供任何代碼的意義。

該解決方案確實（可笑）複雜，對WPF的作者感到羞恥。

The solution for a standard WPF DataGrid can be found here.

我返工你要處理的DATACELL目標雙擊該解決方案爲XCeed DataGridControl（在VB）

Public Class MyXAMLWindow 

    Private Sub grdResults_MouseDoubleClick(sender As Object, e As MouseButtonEventArgs) 
     'Cast the sender parameter to the XCeed DataGridControl' 
     Dim dg As Xceed.Wpf.DataGrid.DataGridControl = sender 

     'Extract the cell information to a custom CellInfo structure.' 
     Dim info = GetCellInfo(e.OriginalSource, dg.SelectedIndex) 

     'Pass the cellinfo to the ViewModel' 
     dg.DataContext.SelectedInfo = info 
    End Sub 

    ''' <summary> 
    ''' Contructs a <see cref="CellInfo(Of String)">cellinfo</see> structure from the cell that was clicked. 
    ''' </summary> 
    ''' <param name="originalSource">The value of the OriginalSource property of the MouseButtonEventArgs.</param> 
    ''' <param name="rowIndex">The index of the row on which was clicked.</param> 
    ''' <returns><see cref="CellInfo(Of string)">cellinfo</see> object.</returns> 
    ''' <remarks>This function uses the OriginalSource property of the MouseButtonEventArgs as a starting point.</remarks>' 
    Private Function GetCellInfo(originalSource As Object, rowIndex As Integer) As CellInfo(Of String) 
     Dim dep As DependencyObject = originalSource 

     Dim cellInfo = New CellInfo(Of String) 

     'Find the DataCell that is associated with the original source.' 
     While (dep IsNot Nothing) AndAlso Not (TypeOf dep Is DataCell) 
      dep = VisualTreeHelper.GetParent(dep) 
     End While 

     If dep Is Nothing Then 
      Return New CellInfo(Of String) With {.ColumnIndex = -1, .RowIndex = -1, .Value = String.Empty} 
     End If 

     If TypeOf dep Is DataCell Then 
      Dim cell As DataCell = TryCast(dep, DataCell) 

      cellInfo.ColumnIndex = cell.ParentColumn.Index 
      cellInfo.RowIndex = rowIndex 
      cellInfo.Value = cell.Content 

     End If 

     Return cellInfo 
    End Function 
End Class 

'A custom Structure to hold the data of the selected Cell.' 
Public Structure CellInfo(Of TValue) 
    Public RowIndex As Integer 
    Public ColumnIndex As Integer 
    Public Value As TValue 
End Structure 

Answer 2

第一。要做到這一點在後面的文件中的代碼，你可以寫

EventManager.RegisterClassHandler(
     typeof(DataCell), 
     DataCell.MouseDoubleClickEvent, 
     new MouseButtonEventHandler(OnDataCellMouseDoubleClick)); 

下一頁去處理方法：

private void OnDataCellMouseDoubleClick(object sender, MouseButtonEventArgs e) 
{ 
    var clickedCell = sender as DataCell; 
    var row = clickedCell.ParentRow; 
    var rowNum = row.TabIndex; 
    var column = clickedCell.ParentColumn; 
    var columnNum = column.Index; 
}