Question

[使用VB 2010 / Winforms]

我有一个包含多个列的DataGridView。它没有绑定，也没有连接到任何类型的数据库或任何东西 - 我只是根据用户输入逐个填充它。

所以，无论如何，DGV中的一列是“image”类型（DataGridViewImageColumn）。

我要做的是，无论何时单击其中一个图像单元格，都会在单击图像单元格的确切位置显示上下文菜单条。

这是我到目前为止所得到的......

Private Sub DataGridView1_CellClick(ByVal sender As System.Object, ByVal e As System.Windows.Forms.DataGridViewCellEventArgs) Handles DataGridView1.CellClick

        Dim columnName As String = DataGridView1.Columns(e.ColumnIndex).Name
        If columnName = "Image" Then 
         Me.Status_ContextMenuStrip1.Show(Me.DataGridView1.CurrentCell.ContentBounds.Location) ' <-- This isn't right, but I must be close!
        End If

End Sub

当我运行上面的代码并单击图像单元格时，会出现上下文菜单，但它出现在屏幕的最左上角。如何让它出现在单击的单元格所在的确切位置？我实际上喜欢它出现在单击的单元格下方，因此它具有与组合框“下拉”类似的视觉效果（我知道如何在我弄清楚如何偏移X和Y坐标时把它放在需要的地方附近。）

谢谢！

Answer 1

尝试以下代码

Private Sub DataGridView1_CellClick(ByVal sender As System.Object, ByVal e As System.Windows.Forms.DataGridViewCellEventArgs) Handles DataGridView1.CellClick
    Dim columnName As String = DataGridView1.Columns(e.ColumnIndex).Name

    If columnName = "Image" Then
        Dim RowHeight1 As Integer = DataGridView1.Rows(e.RowIndex).Height
        Dim CellRectangle1 As Rectangle = DataGridView1.GetCellDisplayRectangle(e.ColumnIndex, e.RowIndex, False)

        CellRectangle1.X += DataGridView1.Left
        CellRectangle1.Y += DataGridView1.Top + RowHeight1

        Dim DisplayPoint1 As Point = PointToScreen(New Point(CellRectangle1.X, CellRectangle1.Y))

        ContextMenuStrip1.Show(DisplayPoint1)
    End If
End Sub

Answer 2

对于任何在未来苦苦挣扎的人 - 这才是真正有效的：

'For forms
Dim f as New Form2
f.Location = DGV.PointToScreen(DGV.GetCellDisplayRectangle(e.ColumnIndex, e.RowIndex, False).Location)

对于这篇文章的案例：

Private Sub DataGridView1_CellClick(ByVal sender As System.Object, ByVal e As
  Dim DisplayPoint1 As Point = DGV.PointToScreen(DGV.GetCellDisplayRectangle(e.ColumnIndex, e.RowIndex, False).Location)
ContextMenuStrip1.Show(DisplayPoint1)
End Sub

Answer 3

尝试更改您的代码..

Private Sub DataGridView1_CellClick(ByVal sender As System.Object, ByVal e As System.Windows.Forms.DataGridViewCellEventArgs) Handles DataGridView1.CellClick

    Dim columnName As String = DataGridView1.Columns(e.ColumnIndex).Name
    If columnName = "Image" Then 
       DataGridView1.CurrentCell = dgvDataDaftar.Rows(e.RowIndex).Cells(e.ColumnIndex)
       Me.Status_ContextMenuStrip1.Show(dgvDataDaftar, DataGridView1.PointToClient(Windows.Forms.Cursor.Position))
    End If

End Sub

获取DataGridView中“当前单元格”的X / Y坐标？

3 个答案: