vb.net 在 DataGridView 中获取“当前单元格”的 X/Y 坐标？
声明：本页面是StackOverFlow热门问题的中英对照翻译，遵循CC BY-SA 4.0协议，如果您需要使用它，必须同样遵循CC BY-SA许可，注明原文地址和作者信息，同时你必须将它归于原作者（不是我）：StackOverFlow
原文地址: http://stackoverflow.com/questions/17557951/
Warning: these are provided under cc-by-sa 4.0 license. You are free to use/share it, But you must attribute it to the original authors (not me):
StackOverFlow
Getting the X/Y coordinates of the "current cell" in a DataGridView?
提问by NotQuiteThereYet
[using VB 2010 / Winforms]
[使用VB 2010 / Winforms]
I have a DataGridView with several columns. It's unbound, and not connected to any sort of database or anything -- I am simply populating it cell by cell based on user input.
我有一个包含几列的 DataGridView。它是未绑定的，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单元地填充它。
So anyways, one of the columns in the DGV is of type "image" (DataGridViewImageColumn).
所以无论如何，DGV 中的列之一是“图像”类型（DataGridViewImageColumn）。
What I'm trying to do is whenever one of the image cells is clicked, a context menu strip is shown at the exact loaction where the image cell is clicked.
我想要做的是，每当单击图像单元格之一时，就会在单击图像单元格的确切位置显示上下文菜单条。
Here's what I've got so far...
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
When I run the above code and click on an image cell, the context menu appears, but it appears at the very top left corner of the screen. How can I get it to appear at the exact location that the clicked cell is at? I'd actually like it to appear just below the clicked cell, so that it has a similar visual effect to a combobox "drop down" (and I know how to offset the X and Y coordinates as soon as I can figure out how to get it in the general vicinity of where it needs to be).
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？我实际上希望它出现在单击的单元格下方，以便它具有与组合框“下拉”类似的视觉效果（并且我知道如何在我能弄清楚如何偏移 X 和 Y 坐标时把它放在它需要的地方附近）。
Thanks!
谢谢！
回答by David -
Try the following code
试试下面的代码
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
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
回答by LuckyLuke82
For anyone struggling with this in future - this is what really works:
对于将来为此而苦苦挣扎的任何人-这才是真正有效的方法：
'For forms
Dim f as New Form2
f.Location = DGV.PointToScreen(DGV.GetCellDisplayRectangle(e.ColumnIndex, e.RowIndex, False).Location)
For case of this post:
对于这篇文章的情况：
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
回答by matzone
Try to change your code like this ..
尝试像这样更改您的代码..
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
