C# 找出在哪个编程生成的对象上调用了contextmenu

在我的程序中，我通过右键单击->新建动态生成标签，格式如下：

private Point MouseDownLocation;
private List<Label> labelList=new List<Label>();

private void mainContextMenu_Opening(object sender, CancelEventArgs e)
{
  MouseDownLocation = PointToClient(MousePosition);
}

private void valueToolStripMenuItem_Click(object sender, EventArgs e)
{
  Label label = new Label();
  label.Location = MouseDownLocation;
  label.AutoSize = true;
  label.ContextMenuStrip = valueContextMenu;
  label.Text = "test";
  this.Controls.Add(label);
  labelList.Add(label);
}

---

问题是，在此函数（正在调用）中，无法检索调用菜单的标签，因为发送方是contextmenu。

请尝试检查ContextMenuStrip的SourceControl属性：

private void deleteToolStripMenuItem_Click(object sender, EventArgs e) {
  Control c = ((ContextMenuStrip)((ToolStripMenuItem)sender).Owner).SourceControl;
  if (c != null) {
    // do something...
  }
}

private void deleteToolStripMenuItem_Click(object sender, EventArgs e) {
  Control c = ((ContextMenuStrip)((ToolStripMenuItem)sender).Owner).SourceControl;
  if (c != null) {
    // do something...
  }
}