以当前显示的顺序获取所选的DataGridViewRows [英] Get selected DataGridViewRows in currently displayed order

问题描述

我有一个 DataGridView ，其中的未绑定数据包含三个不同的 DataColumns 。可以按每一列对行进行排序，但除此之外，不允许对显示的数据进行任何操作。

I have a DataGridView with unbound data that contains three different DataColumns. The rows can be sorted by each column, but other than that no manipulation of the displayed data is allowed.

当我查询 SelectedRows 属性时，行以我最初插入它们的顺序排序，而不是像我一样按当前显示或选定的顺序预期。有没有办法改变这种行为？

When I query the SelectedRows property the rows are sorted in the order I initially inserted them, and not like I expected in the currently displayed or selected order. Is there a way to change this behavior?

推荐答案

我认为没有一种方法可以做到这一点。您需要将排序重做到自己的列表中，然后将IndexOf与SelectedItems配合使用以找出视觉位置。

I don't think there's a one-line way to do this. You will need to redo the sort into your own list, then use IndexOf with the SelectedItems to find out the visual position.

List<DataGridViewRow> l = new List<DataGridViewRow>();
foreach (DataGridViewRow r in dgv.Rows)
{
    l.Add(r);
}

l.Sort((x, y) =>
    {
        IComparable yComparable = (IComparable)x.Cells[dgv.SortedColumn.Index].Value;
        IComparable yc = (IComparable)x.Cells[dgv.SortedColumn.Index].Value;

        if (dgv.SortOrder == SortOrder.Ascending)
            return yc.CompareTo(yComparable);
        else
            return yComparable.CompareTo(yc);
    }
    );

foreach(DataGridViewRow r in dgv.SelectedRows)
{
    int selectedIndex = l.IndexOf(r);
}

请注意，以上内容尚未经过编译测试，可能需要进行一些调整。

Note the above has not been compile tested and might need some tweaking.

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