@using System.Web.UI.HtmlControls
@inherits ControlComponent

<asp.PlaceHolder _ref="() => this.placeHolder" />

@code {
                                            private PlaceHolder placeHolder = new PlaceHolder();

                                            protected override void OnLoad(object sender, EventArgs e)
    {
                                            if (!this.Page.IsPostBack)
        {
            HtmlButton myButton = new HtmlButton();
            myButton.InnerText = "Button 1";
            placeHolder.Controls.Add(myButton);
            myButton = new HtmlButton();
            myButton.InnerText = "Button 2";
            placeHolder.Controls.Add(myButton);
            myButton = new HtmlButton();
            myButton.InnerText = "Button 3";
            placeHolder.Controls.Add(myButton);
            myButton = new HtmlButton();
            myButton.InnerText = "Button 4";
            placeHolder.Controls.Add(myButton);
        }
    }
}

@using BlazorWebFormDemo.Pages
@inherits ControlComponent

<asp.PlaceHolder _ref="() => this.placeHolder" />

@code {
                                            private PlaceHolder placeHolder = new PlaceHolder();

                                            protected override void OnLoad(object sender, EventArgs e)
    {
                                            if (!this.Page.IsPostBack)
        {
            DynamicComponentControl counter = (DynamicComponentControl)this.Control.LoadControl(typeof(Counter));
            placeHolder.Controls.Add(counter);
        }
    }
}