.NET|--Winform|--DotnetBar库的Button显示顺序设置

前言

winform真的要注意细节啊.细节拉满才能把握得住的一个框架.

需求

实现一个动态添加按钮, 但是要根据按钮来排序 .

解决方案

using DevComponents.DotNetBar;

namespace WinFormsApp1
{
    public partial class Form1 : Form
    {

        private List<Control> _controlList = new List<Control>();

        private readonly static int _tabWidth = 45;
        private readonly static int _tabHeight = 45;
        private readonly static Size s_btnDefaultSize = new System.Drawing.Size(_tabWidth, _tabHeight);

        public Form1()
        {
            InitializeComponent();
            this.StartPosition = FormStartPosition.Manual;
            var b3 = AddBtn("3", 3);
            var b1 = AddBtn("1", 1);
            var b2 = AddBtn("2", 2);
            this.Controls.Add(b3);
            this.Controls.Add(b1);
            this.Controls.Add(b2);
        }

        protected override void OnSizeChanged(EventArgs e)
        {
            base.OnSizeChanged(e);

            _controlList = _controlList.OrderBy(c => c.TabIndex).ToList();

            var v = _controlList.Select(s => new { name = s.Name, tab = s.TabIndex });
            for (int i = 0; i < _controlList.Count; i++)
            {
                _controlList[i].Location = new Point(0, _tabHeight * (i + 1));
            }
        }


        protected override void OnControlAdded(ControlEventArgs e)
        {
            base.OnControlAdded(e);

            _controlList.Add(e.Control);
            this.Height += _tabHeight;
        }

        ButtonX AddBtn(string name, int index)
        {
            ButtonX newBtnTab = new ButtonX();
            newBtnTab.Name = name;
            newBtnTab.Text = name;
            newBtnTab.TabIndex = index;
            newBtnTab.Click += NewBtnTab_Click;
            newBtnTab.Size = s_btnDefaultSize;
            newBtnTab.Cursor = Cursors.Hand;
            newBtnTab.Location = new Point(_tabWidth, _tabHeight);
            newBtnTab.BackColor = System.Drawing.Color.FromArgb(255, 251, 251, 251);
            newBtnTab.ColorTable = DevComponents.DotNetBar.eButtonColor.Flat;
            return newBtnTab;
        }

        private void NewBtnTab_Click(object? sender, EventArgs e)
        {
            var newIndex = _controlList.Count + 1;
            var newBtn = AddBtn(newIndex.ToString(), newIndex);
            this.Controls.Add(newBtn);
        }
    }
}