我可以检测用户右键点击Winforms中一个ListView列标头? [英] Can I detect if a user right clicked on a ListView column header in Winforms?
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问题描述
我的意思不是在ListView的项目里面,但列标题,使您可以调整列。
I don't mean the inside of the listview items but the column header that allows you to resize the column.
推荐答案
一个简单的用户控件覆盖的ListView
的 OnMouseEnter在
OnMouseLeave在
&放大器; 的WndProc
A simple UserControl overriding ListView
's OnMouseEnter
OnMouseLeave
& WndProc
public partial class MyListView : ListView
{
public MyListView()
{
}
public delegate void ColumnContextMenuHandler(object sender, ColumnHeader columnHeader);
public event ColumnContextMenuHandler ColumnContextMenuClicked = null;
bool _OnItemsArea = false;
protected override void OnMouseEnter(EventArgs e)
{
base.OnMouseEnter(e);
_OnItemsArea = true;
}
protected override void OnMouseLeave(EventArgs e)
{
base.OnMouseLeave(e);
_OnItemsArea = false;
}
const int WM_CONTEXTMENU = 0x007B;
protected override void WndProc(ref Message m)
{
if (m.Msg == WM_CONTEXTMENU)
{
if (!_OnItemsArea)
{
Point p = base.PointToClient(MousePosition);
int totalWidth = 0;
foreach (ColumnHeader column in base.Columns)
{
totalWidth += column.Width;
if (p.X < totalWidth)
{
if (ColumnContextMenuClicked != null) ColumnContextMenuClicked(this, column);
break;
}
}
}
}
base.WndProc(ref m);
}
}
和用法
myListView1.ColumnContextMenuClicked += (sndr, col) =>
{
this.Text = col.Text;
};
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