如何调整 DataGridView 的垂直滚动位置以在更改其高度后显示整个最后一行？

Question

我有一个 DataGridView，通常每行显示一行数据。但是当用户进入一个单元格时，我会增加最小高度以使编辑更容易。然而，当网格中的最后一行发生这种情况时，垂直滚动位置不会得到调整，只有行的顶部可见，这通常会导致它显示为空白。将 FirstDisplayedScrollingRowIndex 设置为该行的索引并不能解决这个问题。

这是我的代码：

protected override void OnCellEnter(DataGridViewCellEventArgs e)
{
    base.OnCellEnter(e);

    // Looks weird, but this solves an annoying problem where the wait cursor gets stuck
    // on randomly after displaying one of the segmentation dialogs.
    // See 
    Cursor = Cursors.Default;

    EditMode = (GetIgnoreStateForRow(CurrentCellAddress.Y)) ? DataGridViewEditMode.EditProgrammatically : DataGridViewEditMode.EditOnEnter;
    if (e.ColumnIndex != 0 || CurrentCellAddress.Y < 0 || (!Focused && (EditingControl == null || !EditingControl.Focused)))
    {
        var minHeight = RowTemplate.Height * 3;
        if (CurrentRow != null && CurrentRow.Height < minHeight)
            CurrentRow.MinimumHeight = minHeight;
        return;
    }
    SchedulePlaybackForCell();
}

Answer 1

我想我找到了答案。它不一定像我希望的那样优雅，因为它需要覆盖另一个方法，从而将 "fix" 与 "problem" 分开。但它似乎确实有效：

    protected override void OnRowHeightChanged(DataGridViewRowEventArgs e)
    {
        base.OnRowHeightChanged(e);
        if (CurrentRow == e.Row && e.Row.Index == RowCount - 1)
            FirstDisplayedScrollingRowIndex = e.Row.Index;
    }

如何调整 DataGridView 的垂直滚动位置以在更改其高度后显示整个最后一行？

How to adjust vertical scroll position of DataGridView to show entire last row after changing its height?

c#

datagridview

scroll