快速切换Tab界面时如何做到接近0延时（100分求助）？

Question

我有个程序，会打开多个Tab，每个tab下有许多label和button控件，但是在各个tab间切换时把所有里面的控件显示全总会有个1-3秒的延时，为什么不能像windows切换各个窗体一样做到无延时？请问该怎么解决？PS:开启双缓冲后几乎没有什么效果，而且如果改成子窗体形式的话改进会非常大，极费时间，而且也不确定是否一定能提高效率，所以请教各位有没有办法在现有tabcontroler的情况下提升切换的界面显示速度？

Answer 1

不是，不是内存的问题，内存512的和内存4G的机器我都试了，程序只占不到40MB的内存

Answer 2

private System.Windows.Forms.ImageList imageList1;
private System.Windows.Forms.HelpProvider helpProvider1;
private System.Windows.Forms.TabControl tabControl1;
private System.Windows.Forms.TabPage tabPage1;
private System.Windows.Forms.RichTextBox richTextBox2;
private System.Windows.Forms.TextBox textBox2;
private System.Windows.Forms.WebBrowser webBrowser2;
private System.Windows.Forms.RadioButton radioButton2;
private System.Windows.Forms.ProgressBar progressBar2;
private System.Windows.Forms.MonthCalendar monthCalendar2;
private System.Windows.Forms.ListView listView2;
private System.Windows.Forms.LinkLabel linkLabel2;
private System.Windows.Forms.MaskedTextBox maskedTextBox2;
private System.Windows.Forms.HScrollBar hScrollBar2;
private System.Windows.Forms.Label label2;
private System.Windows.Forms.ComboBox comboBox3;
private System.Windows.Forms.ComboBox comboBox4;
private System.Windows.Forms.CheckedListBox checkedListBox2;
private System.Windows.Forms.CheckBox checkBox2;
private System.Windows.Forms.Button button2;
private System.Windows.Forms.RichTextBox richTextBox1;
private System.Windows.Forms.TextBox textBox1;
private System.Windows.Forms.WebBrowser webBrowser1;
private System.Windows.Forms.RadioButton radioButton1;
private System.Windows.Forms.ProgressBar progressBar1;
private System.Windows.Forms.MonthCalendar monthCalendar1;
private System.Windows.Forms.ListView listView1;
private System.Windows.Forms.LinkLabel linkLabel1;
private System.Windows.Forms.MaskedTextBox maskedTextBox1;
private System.Windows.Forms.HScrollBar hScrollBar1;
private System.Windows.Forms.Label label1;
private System.Windows.Forms.ComboBox comboBox2;
private System.Windows.Forms.ComboBox comboBox1;
private System.Windows.Forms.CheckedListBox checkedListBox1;
private System.Windows.Forms.CheckBox checkBox1;
private System.Windows.Forms.Button button1;
private System.Windows.Forms.TabPage tabPage2;
private System.Windows.Forms.RichTextBox richTextBox4;
private System.Windows.Forms.TextBox textBox4;
private System.Windows.Forms.WebBrowser webBrowser4;
private System.Windows.Forms.RadioButton radioButton4;
private System.Windows.Forms.ProgressBar progressBar4;
private System.Windows.Forms.MonthCalendar monthCalendar4;
private System.Windows.Forms.ListView listView4;
private System.Windows.Forms.LinkLabel linkLabel4;
private System.Windows.Forms.MaskedTextBox maskedTextBox4;
private System.Windows.Forms.HScrollBar hScrollBar4;
private System.Windows.Forms.Label label4;
private System.Windows.Forms.ComboBox comboBox7;
private System.Windows.Forms.ComboBox comboBox8;
private System.Windows.Forms.CheckedListBox checkedListBox4;
private System.Windows.Forms.CheckBox checkBox4;
private System.Windows.Forms.Button button4;
private System.Windows.Forms.RichTextBox richTextBox3;
private System.Windows.Forms.TextBox textBox3;
private System.Windows.Forms.WebBrowser webBrowser3;
private System.Windows.Forms.RadioButton radioButton3;
private System.Windows.Forms.ProgressBar progressBar3;
private System.Windows.Forms.MonthCalendar monthCalendar3;
private System.Windows.Forms.ListView listView3;
private System.Windows.Forms.LinkLabel linkLabel3;
private System.Windows.Forms.MaskedTextBox maskedTextBox3;
private System.Windows.Forms.HScrollBar hScrollBar3;
private System.Windows.Forms.Label label3;
private System.Windows.Forms.ComboBox comboBox5;
private System.Windows.Forms.ComboBox comboBox6;
private System.Windows.Forms.CheckedListBox checkedListBox3;
private System.Windows.Forms.CheckBox checkBox3;
private System.Windows.Forms.Button button3;
private System.Windows.Forms.Label label14;
private System.Windows.Forms.CheckBox checkBox14;
private System.Windows.Forms.Button button14;
private System.Windows.Forms.Label label13;
private System.Windows.Forms.CheckBox checkBox13;
private System.Windows.Forms.Button button13;
private System.Windows.Forms.Label label12;
private System.Windows.Forms.CheckBox checkBox12;
private System.Windows.Forms.Button button12;
private System.Windows.Forms.Label label11;
private System.Windows.Forms.CheckBox checkBox11;
private System.Windows.Forms.Button button11;
private System.Windows.Forms.Label label10;
private System.Windows.Forms.CheckBox checkBox10;
private System.Windows.Forms.Button button10;
private System.Windows.Forms.Label label9;
private System.Windows.Forms.CheckBox checkBox9;
private System.Windows.Forms.Button button9;
private System.Windows.Forms.Label label8;
private System.Windows.Forms.CheckBox checkBox8;
private System.Windows.Forms.Button button8;
private System.Windows.Forms.Label label7;
private System.Windows.Forms.CheckBox checkBox7;
private System.Windows.Forms.Button button7;
private System.Windows.Forms.Label label6;
private System.Windows.Forms.CheckBox checkBox6;
private System.Windows.Forms.Button button6;
private System.Windows.Forms.Label label5;

Answer 3

private System.Windows.Forms.CheckBox checkBox5;
private System.Windows.Forms.Button button5;
private System.Windows.Forms.Label label24;
private System.Windows.Forms.CheckBox checkBox23;
private System.Windows.Forms.Button button23;
private System.Windows.Forms.Label label25;
private System.Windows.Forms.Label label26;
private System.Windows.Forms.CheckBox checkBox24;
private System.Windows.Forms.Button button24;
private System.Windows.Forms.Label label27;
private System.Windows.Forms.CheckBox checkBox25;
private System.Windows.Forms.Button button25;
private System.Windows.Forms.Label label28;
private System.Windows.Forms.CheckBox checkBox26;
private System.Windows.Forms.Button button26;
private System.Windows.Forms.Label label29;
private System.Windows.Forms.CheckBox checkBox27;
private System.Windows.Forms.Button button27;
private System.Windows.Forms.Label label30;
private System.Windows.Forms.CheckBox checkBox28;
private System.Windows.Forms.Button button28;
private System.Windows.Forms.Label label31;
private System.Windows.Forms.CheckBox checkBox29;
private System.Windows.Forms.Button button29;
private System.Windows.Forms.Label label32;
private System.Windows.Forms.CheckBox checkBox30;
private System.Windows.Forms.Button button30;
private System.Windows.Forms.WebBrowser webBrowser6;
private System.Windows.Forms.Label label15;
private System.Windows.Forms.CheckBox checkBox15;
private System.Windows.Forms.Button button15;
private System.Windows.Forms.Label label16;
private System.Windows.Forms.Label label17;
private System.Windows.Forms.CheckBox checkBox16;
private System.Windows.Forms.Button button16;
private System.Windows.Forms.Label label18;
private System.Windows.Forms.CheckBox checkBox17;
private System.Windows.Forms.Button button17;
private System.Windows.Forms.Label label19;
private System.Windows.Forms.CheckBox checkBox18;
private System.Windows.Forms.Button button18;
private System.Windows.Forms.Label label20;
private System.Windows.Forms.CheckBox checkBox19;
private System.Windows.Forms.Button button19;
private System.Windows.Forms.Label label21;
private System.Windows.Forms.CheckBox checkBox20;
private System.Windows.Forms.Button button20;
private System.Windows.Forms.Label label22;
private System.Windows.Forms.CheckBox checkBox21;
private System.Windows.Forms.Button button21;
private System.Windows.Forms.Label label23;
private System.Windows.Forms.CheckBox checkBox22;
private System.Windows.Forms.Button button22;
private System.Windows.Forms.WebBrowser webBrowser5;
private System.Windows.Forms.Label label47;
private System.Windows.Forms.CheckBox checkBox47;
private System.Windows.Forms.Button button47;
private System.Windows.Forms.Label label48;
private System.Windows.Forms.CheckBox checkBox48;
private System.Windows.Forms.Button button48;
private System.Windows.Forms.CheckBox checkBox49;
private System.Windows.Forms.Button button49;
private System.Windows.Forms.CheckBox checkBox50;
private System.Windows.Forms.Button button50;
private System.Windows.Forms.Label label49;
private System.Windows.Forms.CheckBox checkBox51;
private System.Windows.Forms.Button button51;
private System.Windows.Forms.Label label50;
private System.Windows.Forms.Label label51;
private System.Windows.Forms.CheckBox checkBox52;
private System.Windows.Forms.Button button52;
private System.Windows.Forms.Label label52;
private System.Windows.Forms.CheckBox checkBox53;
private System.Windows.Forms.Button button53;
private System.Windows.Forms.Label label53;
private System.Windows.Forms.CheckBox checkBox54;
private System.Windows.Forms.Button button54;
private System.Windows.Forms.RadioButton radioButton7;
private System.Windows.Forms.Label label40;
private System.Windows.Forms.CheckBox checkBox39;
private System.Windows.Forms.Button button39;
private System.Windows.Forms.Label label41;
private System.Windows.Forms.CheckBox checkBox40;
private System.Windows.Forms.Button button40;
private System.Windows.Forms.CheckBox checkBox41;
private System.Windows.Forms.Button button41;
private System.Windows.Forms.CheckBox checkBox42;
private System.Windows.Forms.Button button42;
private System.Windows.Forms.Label label42;
private System.Windows.Forms.CheckBox checkBox43;
private System.Windows.Forms.Button button43;
private System.Windows.Forms.Label label43;
private System.Windows.Forms.Label label44;
private System.Windows.Forms.CheckBox checkBox44;
private System.Windows.Forms.Button button44;
private System.Windows.Forms.Label label45;
private System.Windows.Forms.CheckBox checkBox45;
private System.Windows.Forms.Button button45;
private System.Windows.Forms.Label label46;
private System.Windows.Forms.CheckBox checkBox46;
private System.Windows.Forms.Button button46;
private System.Windows.Forms.RadioButton radioButton6;
private System.Windows.Forms.Label label33;
private System.Windows.Forms.CheckBox checkBox31;
private System.Windows.Forms.Button button31;
private System.Windows.Forms.Label label34;
private System.Windows.Forms.CheckBox checkBox32;
private System.Windows.Forms.Button button32;
private System.Windows.Forms.CheckBox checkBox33;
private System.Windows.Forms.Button button33;
private System.Windows.Forms.CheckBox checkBox34;
private System.Windows.Forms.Button button34;
private System.Windows.Forms.Label label35;
private System.Windows.Forms.CheckBox checkBox35;
private System.Windows.Forms.Button button35;
private System.Windows.Forms.Label label36;
private System.Windows.Forms.Label label37;
private System.Windows.Forms.CheckBox checkBox36;
private System.Windows.Forms.Button button36;
private System.Windows.Forms.Label label38;
private System.Windows.Forms.CheckBox checkBox37;
private System.Windows.Forms.Button button37;
private System.Windows.Forms.Label label39;
private System.Windows.Forms.CheckBox checkBox38;
private System.Windows.Forms.Button button38;
private System.Windows.Forms.RadioButton radioButton5;

Answer 4

windows切换各个窗体一样做到无延时既然是各个窗体 那就是各自有各自的线程 根本就是分开的！你的tab下有许多label和button你知道一个label 和button 有多少代码吗？占多大内存？ 弄清楚这些 自然会有解决方案 

Answer 5

tab中包的控件太多会严重影响速度的.
采用页面切换的方式.
tab1是1.aspx
tab2是2.aspx这样速度会快很多,不妨试试.

Answer 6

谢谢楼上几位朋友的回复，我这是winform程序，不是webhiddkiller说的感觉很有道理
“windows切换各个窗体一样做到无延时 既然是各个窗体   那就是各自有各自的线程   根本就是分开的！ 你的tab下有许多label和button 你知道一个label   和button   有多少代码吗？占多大内存？   弄清楚这些   自然会有解决方案   每次切换   都会引起   所有控件的重绘   所以控件多了重绘的东西就多了   
简单点说就是   每切换一次     都得计算要显示的控件   位置了、绘制点了、然后绘制，还有一些必须执行的控件代码 
”
就是不知道该怎么解决说到的这几个问题，我对界面绘制方面的知识比较差，hiddkiller能帮忙再说细一点吗？谢谢了

Answer 7

啊太不好意思了~~  
我也不会  我只知道 一个控件继承下来到能可以拖放到窗体的时候 它的代码量已经很大了~~
现在我正在做的项目 比如象Label  都没有用控件 而是一个class对象  主要功能就是在指定的Rectangle 上绘制一段文字
TextBox 也是自己写的<未继承任何类 object除外> 没用.net 的控件 

Answer 8

建议你用Reflector 看看.net 类库的代码 也许对你有帮助 

Answer 9

多谢hiddkiller，看了下label的代码，确实自己写比较好，不过这样似乎有违.net这样搭积木的特点了，为了性能还是自己写了

Answer 10

hiddkiller,能把你那个label的class对象给我参考下吗？以前没写过这类东西

Answer 11

using System;
using System.ComponentModel;
using System.Drawing;
using System.Windows.Forms;
using System.Windows.Forms.VisualStyles;
namespace WindowsApplication1
{
    class MyLabel
    {
        private static int idIndex = 0;
        string id = "";
        /// <summary>
        /// 对象标识
        /// </summary>
        public string Id
        {
            get { return id; }
        }
        private StringFormat alignVertically = new StringFormat();
        /// <summary>
        /// 获取或设置文本对齐方式
        /// </summary>
        public StringFormat AlignVertically
        {
            get { return alignVertically; }
            set { alignVertically = value; }
        }
        private TextAlign textAlign;
        /// <summary>
        /// 获取或设置对象文本位置
        /// </summary>
        [Description("设置对象文本位置"), Browsable(true)]
        public TextAlign TextAlign
        {
            get { return textAlign; }
            set
            {
                if (textAlign != value)
                {
                    textAlign = value;
                    alignVertically = new StringFormat();
                    alignVertically.LineAlignment = StringAlignment.Center;
                    switch (textAlign)
                    {
                        case TextAlign.Left:
                            alignVertically.Alignment = StringAlignment.Near;
                            break;
                        case TextAlign.Right:
                            alignVertically.Alignment = StringAlignment.Far;
                            break;
                        case TextAlign.Center:
                            alignVertically.Alignment = StringAlignment.Center;
                            break;
                        default:
                            break;
                    }
                }
            }
        }
        bool myMouseIsDown = false;
        /// <summary>
        /// 当前是否选中
        /// </summary>
        public bool MyMouseIsDown
        {
            get { return myMouseIsDown; }
            set 
            {
                if (myMouseIsDown != value)
                {
                    myMouseIsDown = value;
                   
                }
            }
        }
        Font font = new Font("宋体", 9);
        /// <summary>
        /// 获取或设置对象text属性的字体
        /// </summary>
        [Description("设置对象text属性的字体"), Browsable(true)]
        public Font Font
        {
            get { return font; }
            set { font = value; }
        }
        Color backColor = SystemColors.Control;
        /// <summary>
        /// 获取或设置对象背景颜色
        /// </summary>
        [Description("设置对象背景颜色"), Browsable(true)]
        public Color BackColor
        {
            get { return backColor; }
            set { backColor = value; }
        }
        Color foreColor = Color.Black;
        /// <summary>
        /// 获取或者设置对象前景颜色
        /// </summary>
        [Description("设置对象前景颜色"), Browsable(true)]
        public Color ForeColor
        {
            get { return foreColor; }
            set { foreColor = value; }
        }
        private string text="";
        /// <summary>
        /// 获取或设置对象的文本内容
        /// </summary>
        public string Text
        {
            get { return text; }
            set { text = value; }
        }
        
        Rectangle bounds = new Rectangle(0, 0, 110, 20);
        /// <summary>
        /// 获取或设置对象相对其容器的大小和位置
        /// </summary>
        [Browsable(false)]
        public Rectangle Bounds
        {
            get { return bounds; }
            set { if (bounds != value) { bounds = value; } }
        }
        bool visible = true;
        /// <summary>
        /// 获取或设置一个值，该值指示是否显示该对象
        /// </summary>
        public bool Visible
        {
            get { return visible; }
            set { visible = value; }
        }
        Control fatherControl;
        /// <summary>
        /// 父控件对象（捕捉键盘鼠标用）
        /// </summary>
        public Control FatherControl
        {
            get { return fatherControl; }
            set { fatherControl = value; }
        }
        /// <summary>
        /// 构造方法
        /// </summary>
        public MyLabel(Control control)
        {
            idIndex++;
            id = Hthc.Basic.sysCommon.BuildObjectId();
            text = "myLabel" + idIndex.ToString();
            fatherControl = control;
            FatherControl.Paint += new PaintEventHandler(FatherControl_Paint);
        }
        /// <summary>
        /// 主控件重绘时绘制本对象
        /// </summary>
        void FatherControl_Paint(object sender, PaintEventArgs e)
        {
            OnPaint(e);
        }
     
        /// <summary>
        /// 获得本对象位图
        /// </summary>
        /// <returns>位图</returns>
        public Bitmap DrawToBitmap(Bitmap image)
        {
            Graphics e = Graphics.FromImage(image);
            Rectangle rect = bounds;
            bounds = new Rectangle(0, 0, bounds.Width, bounds.Height);
            DrawMe(e);
            bounds = rect;
            return image;
        }
        /// <summary>
        /// 获得本对象位图
        /// </summary>
        /// <returns>位图</returns>
        public Bitmap DrawToBitmap()
        {
            Bitmap image = new Bitmap(bounds.Width, bounds.Height);
            Graphics e = Graphics.FromImage(image);
            Rectangle rect = bounds;
            bounds = new Rectangle(0, 0, bounds.Width, bounds.Height);
            DrawMe(e);
            bounds = rect;
            return image;
        }
        /// <summary>
        /// 对象重绘
        /// </summary>
        public void Invalidate()
        {
            OnPaint(new PaintEventArgs(FatherControl.CreateGraphics(),Bounds));
        }
        /// <summary>
        /// 绘制对象样式
        /// </summary>
        protected virtual void DrawMe(Graphics e)
        {
            if (!Visible)
                return;
            if (Text != "")
                e.DrawString(Text, this.Font, new SolidBrush(ForeColor), Bounds, AlignVertically);        }
        /// <summary>
        /// 绘制方法
        /// </summary>
        protected virtual void OnPaint(PaintEventArgs e) 
        {
            DrawMe(e.Graphics);
        }    }
}

Answer 12

万分感谢，呵呵　，上面的是吗？我邮箱：[email protected]