如何检查鼠标单击位置是否仅位于virtualmode下列表视图中列[0]中的项目内？

C#: How do you check if the mouse click position was only inside an item in Column[0] in a listview under virtualmode?

C#:如何检查鼠标单击位置是否仅位于virtualmode下列表视图中列[0]中的项目内?

I can get the the Item object the mouse just clicked using ListView.GetItemAt, but after that, how could I check if it was clicked within column[0]?

我可以使用ListView.GetItemAt获取鼠标刚刚单击的Item对象,但在那之后,我如何检查它是否在列[0]中被单击?

3 个解决方案

#1

Disregard, I found a solution after tinkering with the code some more. Here's the solution I used:

无视,我在修改代码之后找到了一个解决方案。这是我使用的解决方案:

    private void lvListView_MouseClick(object sender, MouseEventArgs e)
    {
        ListView lv = (ListView)sender;
        ListViewItem lvi;

        if (e.X > lv.Columns[0].Width)
        {
            lvi = null;
        }
        else
        {
            lvi = lv.GetItemAt(e.X, e.Y);
        }

        if (lvi != null)
        {
            lvi.Checked = !lvi.Checked;
            lv.Invalidate(lvi.Bounds);
        }
    }

#2

Something like this perhaps (inside a mouse event: e is of type MouseEventArgs):

也许这样的东西(在鼠标事件中:e是MouseEventArgs类型):

// get the rectangle for the first item; used for getting sideways scrolling offset
Rectangle r = listView1.GetItemRect(0);
int leftOffset = r.Left;

if (listView1.Columns[0].Width + leftOffset > e.X)
{
    // first column
}
else
{
    // other column
}

Update: missed that it was only the first column that was interesting; first solution picked out the column index under the mouse; this picks only the "first" or "other" cases. Note that it also takes sideways scrolling into consideration.

更新:错过了它只是第一个有趣的专栏;第一个解决方案在鼠标下挑出了列索引;这只选择了“第一”或“其他”案例。请注意,它还需要横向滚动。

#3

ListViewItem has a GetSubItemAt member that would probably help.

ListViewItem有一个可能有用的GetSubItemAt成员。

#1