/// <summary>
        /// Called when help is clicked.
        /// </summary>
        void OnHelp()
        {
            // First check we are disabled, show info on how to enable
            if (this.lblCurrentlyDisabled.Visible)
            {
                MessageBox.Show("Add-Ins can be enabled or disabled using the Add-In Manager option on the Tools menu.", DefaultMessageBoxCaption);
            }
            else
            {
                // Check we have a selected item
                GridItem item = this.propertyGridFeatures.SelectedGridItem;
                if (item != null)
                {
                    // Check we have a property
                    if (item.GridItemType == GridItemType.Property)
                    {
                        // Show property specific help...
                        // Get property host/collection, to get the selected property, to access the plugin, to get the url
                        CustomClass featuresHost = propertyGridFeatures.SelectedObject as CustomClass;
                        foreach (CustomProperty property in featuresHost)
                        {
                            if (property.Name == item.Label)
                            {
                                IBIDSHelperPlugin plugin  = property.Plugin;
                                string            helpUrl = plugin.HelpUrl;
                                if (!string.IsNullOrEmpty(helpUrl))
                                {
                                    OpenUrl(plugin.HelpUrl);
                                }
                                else
                                {
                                    MessageBox.Show("Sorry, no help page is available for this plug-in.", DefaultMessageBoxCaption);
                                }

                                return;
                            }
                        }
                    }
                }
            }

            // Default trap
            MessageBox.Show("Please select an individual feature to access detailed help.", DefaultMessageBoxCaption);
        }
        /// <summary>
        /// Initializes a new instance of the <see cref="CustomProperty"/> class, using a <see cref="BIDSHelperPluginBase"/> instance.
        /// </summary>
        /// <param name="plugin">The BIDS Helper plugin to represent as a feature enabled property.</param>
        public CustomProperty(IBIDSHelperPlugin plugin)
        {
            this.Plugin      = plugin;
            this.name        = plugin.FeatureName;
            this.description = plugin.FeatureDescription;
            this.objValue    = plugin.Enabled;
            this.type        = typeof(bool);
            this.readOnly    = false;
            this.visible     = true;
            this.category    = GetFeatureCategoryLabel(plugin.FeatureCategory);
            this.childern    = new Collection <CustomProperty>();

#if DEBUG
            // Write out list of all plugins as we create the property collection,
            // used for easy spell checking
            System.Diagnostics.Debug.WriteLine(this.name);
            System.Diagnostics.Debug.WriteLine(this.description);
            System.Diagnostics.Debug.WriteLine(string.Empty);
#endif
        }