上下文菜單刪除所選按鈕

Question

我在選項卡控件中創建了一個自定義控件，該控件通過拖動所選選項卡上的文件在每個選項卡上包含一個flowLayoutPanel。 我有一個上下文菜單可以重命名和刪除標簽頁，但是我還希望能夠刪除在右鍵單擊並選擇“刪除”時創建的按鈕。我找不到只刪除所選按鈕的方法。 。

這是我必須創建的按鈕：

  public void Form1_DragDrop(object sender, DragEventArgs e)
    {
        string[] fileList = e.Data.GetData(DataFormats.FileDrop) as string[];

        foreach (string s in fileList)
        {
            var button = new Button();
            path_app = String.Format("{0}", s);
            string filename = path_app;
            file_name = Path.GetFileName(path_app);

          Icon icon = System.Drawing.Icon.ExtractAssociatedIcon(filename);
          Bitmap bmp = icon.ToBitmap();
          CustomControl custom_btn = new CustomControl(button, new Label { Text = file_name });
          button.Tag = path_app;
          button.BackgroundImage = bmp;
          button.BackgroundImageLayout = ImageLayout.Stretch;
          FlowLayoutPanel selectedFLP = (FlowLayoutPanel)tabControl1.SelectedTab.Controls[0];
          selectedFLP.Controls.Add(custom_btn);
          button.Click += new EventHandler(button_Click);

            ContextMenu cm2 = new ContextMenu();
            cm2.MenuItems.Add("Remove", new EventHandler(rmv_btn_click));
            custom_btn.ContextMenu = cm2;
        }
    }

    private void rmv_btn_click(object sender, System.EventArgs e)
    {
        foreach (Control X in fl_panel.Controls)
        {
            fl_panel.Controls.Remove(X);
        }
    }

如何獲得在rmv_btn_click事件中右鍵單擊作為發送者的按鈕，以知道要刪除哪個按鈕？

Answer 1

如果我理解您的意思，則需要使用類似的內容。

private void rmv_btn_click(object sender, System.EventArgs e)
{
  fl_panel.Controls.Remove(sender as Button);
}

Answer 2

私人void rmv_btn_click（object sender，System.EventArgs e）{

        Button btn = new Button();
        Label lbl = new Label();
        CustomControl cst_btn = new CustomControl(btn, lbl);
        cst_btn = sender as CustomControl;
        DialogResult dialogResult = MessageBox.Show("Are you sure that you want to remove this object?", "Remove object", MessageBoxButtons.YesNo);
        if (dialogResult == DialogResult.Yes)
        {
            cst_btn.Dispose();
        }
        else if (dialogResult == DialogResult.No)
        {
            //do nothing
        }


    }

    public EventHandler handlerGetter(CustomControl button)
    {
        return (object sender, EventArgs e) =>
        {
            rmv_btn_click(button, e);
        };
    }