如何更改虚拟模式DataGridView的行位置？

发布于 2024-07-11 12:52:52 字数 143 浏览 16 评论 0原文

我正在使用 Windows 窗体。

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少跟Wǒ拽 2024-07-18 12:52:53

Private Sub GridSaleItem_SelectionChanged(ByVal sender As Object, ByVal e As System.EventArgs) Handles GridSaleItem.SelectionChanged
    Dim rowcount As Integer
    rowcount = GridSaleItem.Rows.Count
    For i As Integer = 1 To rowcount
        If i = 1 Then
            '
        Else
            If i = rowcount Then
                Me.GridSaleItem.CurrentCell = Me.GridSaleItem.Rows(i - 1).Cells(0)
                Me.GridSaleItem.Rows(i - 1).Selected = True
            End If
        End If
    Next

End Sub

Private Sub GridSaleItem_SelectionChanged(ByVal sender As Object, ByVal e As System.EventArgs) Handles GridSaleItem.SelectionChanged
    Dim rowcount As Integer
    rowcount = GridSaleItem.Rows.Count
    For i As Integer = 1 To rowcount
        If i = 1 Then
            '
        Else
            If i = rowcount Then
                Me.GridSaleItem.CurrentCell = Me.GridSaleItem.Rows(i - 1).Cells(0)
                Me.GridSaleItem.Rows(i - 1).Selected = True
            End If
        End If
    Next

End Sub

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辞慾 2024-07-18 12:52:52

您必须清除旧位置并设置一个新位置

集合 dataGridView1.SelectedRows 具有当前选定的行。根据网格的 MultiSelect 属性，您可能必须循环遍历 SelectedRows 中的所有行并将它们标记为未选中。如果您处于单选模式，只需将新行设置为选定状态即可清除旧选择。

要选择特定行（在本例中为索引 0 处的行），只需添加以下行
dataGridView1.Rows[0].Selected = true;

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苏佲洛 2024-07-18 12:52:52

马库斯的答案是正确的，但您可能还需要设置 DataGridView 的当前单元格属性...

dgv.CurrentCell = dgv.Rows[0].Cells[0];

我相信这会滚动网格。另外，为了绝对安全，您可能需要在另一行代码之前添加此行...

dgv.CurrentCell = null;

这将确保如果您想要的行已经是活动行但只是滚动到视图之外，它将滚动回视图。

Marcus's answer is correct, but you may also need to set the DataGridView's current cell property...

dgv.CurrentCell = dgv.Rows[0].Cells[0];

I believe this will scroll the grid. Also, to be absolutely safe, you may want to add this before the other line of code...

dgv.CurrentCell = null;

This will ensure that if the row you want is already the active row but just scrolled out of view, it will scroll it back into view.

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水波映月 2024-07-18 12:52:52

您似乎不仅需要设置所选行，还需要设置显示的行。您可以使用 DataGridView 上的 FirstDisplayedScrollingRowIndex 属性访问后者。有用的设置之一：

int lastShown = FirstDisplayedScrollingRowIndex + DisplayedRowCount(false) - 2;

if (lastShown < yourIndex)
  FirstDisplayedScrollingRowIndex += yourIndex - lastShown;
else if (FirstDisplayedScrollingRowIndex > yourIndex)
  FirstDisplayedScrollingRowIndex = yourIndex;

将确保以编程方式向上/向下滚动时，新选择的行不会从屏幕上消失。

You seem to require not only setting the selected row, but also the displayed row. You can access the latter with the FirstDisplayedScrollingRowIndex property on your DataGridView. One of the useful setups:

int lastShown = FirstDisplayedScrollingRowIndex + DisplayedRowCount(false) - 2;

if (lastShown < yourIndex)
  FirstDisplayedScrollingRowIndex += yourIndex - lastShown;
else if (FirstDisplayedScrollingRowIndex > yourIndex)
  FirstDisplayedScrollingRowIndex = yourIndex;

will make sure your newly selected row does not disappear off the screen when scrolling up/down programmatically.

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对不⑦ 2024-07-18 12:52:52

Else
        If i = rowcount Then
            Me.GridSaleItem.CurrentCell = Me.GridSaleItem.Rows(i - 1).Cells(0)
            Me.GridSaleItem.Rows(i - 1).Selected = True
        End If
    End If
Next

Else
        If i = rowcount Then
            Me.GridSaleItem.CurrentCell = Me.GridSaleItem.Rows(i - 1).Cells(0)
            Me.GridSaleItem.Rows(i - 1).Selected = True
        End If
    End If
Next

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