using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Runtime.InteropServices;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace SIMDP
{
    //public partial class CoTableLayoutPanel : Control
    //{
    //    public CoTableLayoutPanel()
    //    {
    //        InitializeComponent();
    //    }

    //    protected override void OnPaint(PaintEventArgs pe)
    //    {
    //        base.OnPaint(pe);
    //    }
    //}

    public partial class  CoTableLayoutPanel : TableLayoutPanel
    {
        

        protected override void OnCreateControl()
        {
            base.OnCreateControl();
            this.SetStyle(ControlStyles.OptimizedDoubleBuffer | ControlStyles.CacheText, true);

           // this.CellBorderStyle = System.Windows.Forms.TableLayoutPanelCellBorderStyle.Single;
        }

        protected override CreateParams CreateParams
        {
            get
            {
                CreateParams cp = base.CreateParams;
                cp.ExStyle |= NativeMethods.WS_EX_COMPOSITED;
                return cp;
            }
        }

        public void BeginUpdate()
        {
            NativeMethods.SendMessage(this.Handle, NativeMethods.WM_SETREDRAW, IntPtr.Zero, IntPtr.Zero);
        }

        public void EndUpdate()
        {
            NativeMethods.SendMessage(this.Handle, NativeMethods.WM_SETREDRAW, new IntPtr(1), IntPtr.Zero);
            Parent.Invalidate(true);
        }
    }

    public static class NativeMethods
    {
        public static int WM_SETREDRAW = 0x000B; //uint WM_SETREDRAW
        public static int WS_EX_COMPOSITED = 0x02000000;


        [DllImport("user32.dll", CharSet = CharSet.Auto)]
        public static extern IntPtr SendMessage(IntPtr hWnd, int Msg, IntPtr wParam, IntPtr lParam); //UInt32 Msg
    }
}