Ext.Net.RowExpander.PluginAdded C# (CSharp) Method

        protected internal override void PluginAdded()
        {
            base.PluginAdded();

            GridPanel grid = this.PluginOwner as GridPanel;

            if (grid == null)
            {
                throw new InvalidOperationException("The RowExpander plugin can only be added to the GridPanel Control or a Control which inherits from GridPanel.");
            }

            if (!this.PluginOwner.Controls.Contains(this.Template))
            {
                this.PluginOwner.Controls.Add(this.Template);
            }

            if (!this.PluginOwner.LazyItems.Contains(this.Template))
            {
                this.PluginOwner.LazyItems.Add(this.Template);
            }

            if (this.Component.Count > 0)
            {
                if (!this.PluginOwner.Controls.Contains(this.Component[0]))
                {
                    this.PluginOwner.Controls.Add(this.Component[0]);
                }

                if (!this.PluginOwner.LazyItems.Contains(this.Component[0]))
                {
                    this.PluginOwner.LazyItems.Add(this.Component[0]);
                }
            }

            if(this.Page == null)
            {
                this.Init += new EventHandler(RowExpander_Init);
                return;
            }

            this.InitRowExpanderColumn(grid);
        }