C# DockContent.AddHelp方法代碼示例

        /// <summary>
        /// Registers a control so it becomes visible as part of the main form</summary>
        /// <param name="control">Control</param>
        /// <param name="info">Control display information</param>
        /// <param name="client">Client that owns the control and receives notifications
        /// about its status, or null if no notifications are needed</param>
        /// <remarks>If IControlHostClient.Close() has been called, the IControlHostService
        /// also calls UnregisterControl. Call RegisterControl again to re-register the Control.</remarks>
        public void RegisterControl(Control control, ControlInfo info, IControlHostClient client)
        {
            if (control == null)
                throw new ArgumentNullException("control");
            if (info == null)
                throw new ArgumentNullException("info");

            if (FindControlInfo(control) != null)
                throw new ArgumentException("Control already registered");

            // allow null client
            if (client == null)
                client = Global<DefaultClient>.Instance;

            info.Client = client;
            info.Control = control;
            info.Changed += info_Changed;

            var dockContent = new DockContent(this);

            if (!string.IsNullOrEmpty(info.HelpUrl))
                dockContent.AddHelp(info.HelpUrl);

            // set persistence id one time only.
            // do not update dockContent.Name            
            // dockContent.Text is used for titlebar.
            dockContent.Name = GetPersistenceId(info);

            UpdateDockContent(dockContent, info);

            m_dockContent.Add(info, dockContent);
            m_controls.ActiveItem = info;

            info.HostControl = dockContent;

            // Any property we set on this Control needs to be restored in UnregisterControl.
            //  For example, QuadPanelControl was broken by setting Dock property but not restoring it.
            info.OriginalDock = control.Dock;
            control.Dock = DockStyle.Fill;

            dockContent.Controls.Add(control);

            dockContent.FormClosing += dockContent_FormClosing;

            ShowDockContent(dockContent, info);

            if (info.ShowInMenu)
            {
                if (info.IsDocument.HasValue && info.IsDocument.Value)
                {
                    // description( and the tooltip) for a document control by convention is the full path of the document
                    RegisterMenuCommand(info, "@" + info.Description);
                }
                else 
                    RegisterMenuCommand(info, "@" + dockContent.Text); // tells m_commandService not to interpret slashes as submenus
            }

            // Bring all the Controls for this client to the front.
            BringClientToFront(client);

            // Call the IControlHostClient's Activate method. Seems to be required when driving
            //  the app from a script and if the user clicks on another app at the wrong moment.
            ActivateClient(control);
        }