Question

使用Winforms'DataGridView，可以使用HitTest来确定鼠标按下的列和行索引（以及其他事件）。

Dim hti As DataGridView.HitTestInfo = sender.HitTest(e.X, e.Y)

与WPF DataGrid有类似之处吗？我需要获取MouseLeftButtonDown事件的行和列索引。

Answer 1

它比这更复杂，但以下链接应该有助于获取行和列的索引。

WPF DataGrid - 检测已点击的列，单元格和行： http://blog.scottlogic.com/2008/12/02/wpf-datagrid-detecting-clicked-cell-and-row.html

WPF DataGrid - get row number which mouse cursor is on

如上所述，您必须使用VisualTreeHelper类遍历构成DataGrid的Visual元素。

Answer 2

对于那些可能希望避免我在这里搜索的人来说，我总是困惑的总代码是能够提供的：

当前行索引
当前列索引
当前列标题和

能够公开行上列的值。

代码进入MouseLeftButtonup事件，DGrid1是网格的名称

Dim currentRowIndex As Integer = -1
Dim CurrentColumnIndex As Integer = -1
Dim CurrentColumnHeader As String = ""
Dim Myrow As DataRowView = Nothing
Dim dep As DependencyObject = DirectCast(e.OriginalSource, DependencyObject)
While dep IsNot Nothing And Not TypeOf dep Is DataGridCell And Not TypeOf dep Is Primitives.DataGridColumnHeader
    dep = VisualTreeHelper.GetParent(dep)
    If dep IsNot Nothing Then
        If TypeOf dep Is DataGridCell Then
            Dim cell As DataGridCell = DirectCast(dep, DataGridCell)
            Dim col As DataGridBoundColumn = DirectCast(cell.Column, DataGridBoundColumn)
            Myrow = DGrid1.SelectedItem
            CurrentColumnHeader = col.Header.ToString
            CurrentColumnIndex = col.DisplayIndex
            currentRowIndex = DGrid1.Items.IndexOf(DGrid1.CurrentItem)
            Exit While
        End If
    End If
End While
If currentRowIndex = -1 OrElse CurrentColumnIndex = -1 OrElse CurrentColumnHeader = "" OrElse Myrow Is Nothing Then Exit Sub

     'code to consume the variables from here

Dim strinwar As String = Myrow.Item("header name or index").ToString()

是否有数据网格鼠标按下命中测试以获取点击的行和列索引？

2 个答案: