Order of lifecycle events about blazor.webform.components HOT 1 CLOSED

@page "/mypage"
@using System.Web.UI
@using System.Web.UI.WebControls
@inherits ControlComponent

<asp.TextBox ID="Val" TextMode="TextBoxMode.Date" @ref="this.myval">
</asp.TextBox>
<asp.Button _ref="() => this.button" Text="Add" OnClick="this.AddButton_Click" />
<h1>@res?.ToString()</h1>

<h1>
    <asp.Label _ref="() => this.msg" />
</h1>

@code {
    Button button = new Button();
    Label msg = new MsgLabel();

    protected override void OnInitialized()
    {
        this.Control.Init += Control_OnInit;
        this.Control.Load += Control_OnLoad;
        this.Control.PreRender += Control_OnPreRender;
        button.Init += Button_OnInit;
        button.Load += Button_OnLoad;
        button.PreRender += Button_OnPreRender;
        base.OnInitialized();
    }

    public void Control_OnInit(object sender, EventArgs e)
    {
        msg.Text += "Init (Control), ";
    }

    public void Button_OnInit(object sender, EventArgs e)
    {
        msg.Text += "Init (Button), ";
    }

    protected void Control_OnLoad(object sender, EventArgs e)
    {
        if (!this.Page.IsPostBack)
        {
            msg.Text += "First Load (Control), ";
        }
        else
        {
            msg.Text += "Postback Load (Control), ";
        }
    }

    protected void Button_OnLoad(object sender, EventArgs e)
    {
        if (!this.Page.IsPostBack)
        {
            msg.Text += "First Load (Button), ";
        }
        else
        {
            msg.Text += "Postback Load (Button), ";
        }
    }

    public void Control_OnPreRender(object sender, EventArgs e)
    {
        msg.Text += "Prerender (Control), ";
    }

    public void Button_OnPreRender(object sender, EventArgs e)
    {
        msg.Text += "Prerender (Button), ";
    }

    TextBox myval = null;
    DateTime? res = null;
    protected void AddButton_Click(object sender, EventArgs e)
    {
        res = Convert.ToDateTime(myval.Text);
        msg.Text += "Click Handler, ";
        // this.RequestRefresh();
        StateHasChanged();
    }

    protected override void OnUpdate(object sender, StateUpdateEventArgs e)
    {
        // how to use this?
        base.OnUpdate(sender, e);
        // dialogService.Alert("Update.");
    }

    public class MsgLabel : Label
    {
        protected override void Render(HtmlTextWriter writer)
        {
            this.Text += "Render (Label), ";
            base.Render(writer);
        }
    }
}