C# 用tabcontrol實現表單類似網頁排版的顯示

標籤：poi   protected   div   比較   message   需要   abc   事件   add   

這裡做的比較簡陋，可以美化下

吧form設定位非頂級控制項，直接放在tabcontro裡邊，然後實現tabcontrol的拖拽移除tabpage顯示form以及添加tabpage

mousemove的觸發時機需要最佳化一下

public Form1()        {            InitializeComponent();        }        private TabControl tabControl1 = new TabControl();        private bool StartMove = false;        private bool flag = true;        private TabPage MovePage = null;        protected override void OnLoad(EventArgs e)        {            base.OnLoad(e);            tabControl1.Dock = DockStyle.Fill;                        this.Controls.Add(tabControl1);            this.Controls.SetChildIndex(tabControl1, 0);            frm1ToolStripMenuItem.Click += delegate {                var frm1 = new Form();                frm1.Text = "frm1";                var btn=new Button();                btn.Text = "btn";                btn.Click += delegate { MessageBox.Show("this is frm1"); btn.Text = "frm1"; };                frm1.Controls.Add(btn);                addfrm(frm1);            };            frm2ToolStripMenuItem.Click += delegate            {                var frm1 = new Form();                frm1.Text = "frm2";                var btn = new Button();                btn.Text = "btn";                btn.Click += delegate { MessageBox.Show("this is frm2"); };                frm1.Controls.Add(btn);                addfrm(frm1);            };            frm3ToolStripMenuItem.Click += delegate            {                var frm1 = new Form();                frm1.Text = "frm3";                var btn = new Button();                btn.Text = "btn";                btn.Click += delegate { MessageBox.Show("this is frm3"); };                frm1.Controls.Add(btn);                addfrm(frm1);            };            tabControl1.AllowDrop = true;            Func<Point, TabPage> GetTabPageByTab = (point) =>            {                for (int i = 0; i < this.tabControl1.TabPages.Count; i++)                {                    if (tabControl1.GetTabRect(i).Contains(point))                    {                        return this.tabControl1.TabPages[i];                    }                }                return null;            };            tabControl1.MouseDown += (o, eg) => {                if (flag)                {                    StartMove = true;                    MovePage=GetTabPageByTab(new Point(eg.X, eg.Y));                }                flag = true;            };            tabControl1.MouseUp += (o, eg) => {                StartMove = false;            };            tabControl1.SelectedIndexChanged += (o, eg) => {                flag = false;//切換的時候因為失去焦點的原因，會觸發down事件不觸發up事件這裡做屏蔽            };            tabControl1.MouseMove += (o, eg) => {                if (StartMove && flag)                {                    if (MovePage != null)                    {                        this.DoDragDrop(MovePage, DragDropEffects.None);                    }                }            };            tabControl1.ControlAdded += delegate {                StartMove = false;                flag = false;            };            tabControl1.DragOver += (o, eg) => {                eg.Effect = DragDropEffects.None;                if (tabControl1.TabPages.Count < 2) return;                TabPage page = (TabPage)eg.Data.GetData(typeof(TabPage));                var frm1 = page.Controls[0] as Form;                frm1.FormBorderStyle = System.Windows.Forms.FormBorderStyle.Sizable;                frm1.Parent = null;                frm1.TopLevel = true;                frm1.Owner = this;                frm1.Location = new Point(eg.X, eg.Y);                frm1.Show();                tabControl1.TabPages.Remove(page);                MovePage = null;                frm1.Move += (oo, ee) =>                {                    for (int i = 0; i < tabControl1.TabPages.Count; i++)                    {                        if (tabControl1.GetTabRect(i).Contains(this.PointToClient(frm1.Location)))                        {                            addfrm(frm1);                        }                    }                };            };                   }        private void addfrm(Form frm)        {            if (tabControl1.Visible == false) tabControl1.Visible = true;            bool flag = true;            frm.TopLevel = false;            frm.Dock = DockStyle.Fill;            frm.FormBorderStyle = System.Windows.Forms.FormBorderStyle.None;            frm.Owner = null;            foreach (TabPage page in tabControl1.TabPages)            {                if (page.Controls.Count < 1)                {                    page.Controls.Add(frm);                    page.Text=frm.Text;                    flag = false;                    frm.Show();                    return;                }            }            if (flag)            {                var page=new TabPage(frm.Text);                page.Controls.Add(frm);                tabControl1.TabPages.Add(page);                frm.Show();            }                  }

 

C# 用tabcontrol實現表單類似網頁排版的顯示