private void menuAddFavorite_Click(object sender, EventArgs e) { AddFavorite favAddForm = new AddFavorite(); favAddForm.textTitle.Text = axWebBrowser1.LocationName; favAddForm.textUrl.Text = axWebBrowser1.LocationURL; DialogResult res = favAddForm.ShowDialog(); if (res == DialogResult.OK) { // コレクションに追加する Favorit Favotit = new Favorit(favAddForm.textTitle.Text, favAddForm.textUrl.Text); collectionFavorit.Add(Favotit); if (menuFavorit.DropDownItems.Count >= 2) { toolStripSeparator4.Visible = true; menuEditFavorite.Enabled = true; } // お気に入りメニューに新規項目を追加 ToolStripMenuItem favitem = new ToolStripMenuItem(); favitem.Text = ((Favorit)collectionFavorit[collectionFavorit.Count - 1]).title; favitem.ToolTipText = ((Favorit)collectionFavorit[collectionFavorit.Count - 1]).address; menuFavorit.DropDownItems.Add(favitem); } }