public void InitializeTab(System.Windows.Forms.TabControl tabControl) { mPointEditWindow = new PointEditWindow(); mPointEditWindow.DataChanged += HandleDataChanged; mTab = new PluginTab(); mContainer = tabControl; mTab.ClosedByUser += new PluginTab.ClosedByUserDelegate(OnClosedByUser); mTab.Text = " Points"; // add spaces to make room for the X to close the plugin mTab.Controls.Add(mPointEditWindow); mPointEditWindow.Dock = DockStyle.Fill; }