C# Tapcontrol中的自定义控件渲染

这是一个奇怪的例子，描述起来会有点长，所以请耐心听我说

我有一个为C4客户端配置文件制作的控件，名为ToggleSwitchTSW。这个开关的设计就像地铁开关一样，这是做得很出色。。。直到它被添加到点击控制/点击页面，然后：

渲染的行为很奇怪，没有正确绘制背景，并且开/关标签没有显示。这也会影响其他控件，就像整个窗体不会绘制一样

此外，VS 2010和2013 design Editor属性字段都冻结，因此我无法访问其他控件

如果保持正常，程序将无法生成。。。基本上崩溃了

但是，如果我将点击控制从“法线”更改为“flatbutton”或“button”，则它会停止并像往常一样平滑运行，这很好，但是我开始想为什么它不会以法线渲染

这就是我尝试过的

tsw扩展按钮库以实现可点击性。所以我将其更改为控制，然后在一个无限循环中调用OnPaint，这样做没有帮助，单击也不起作用，但这现在不那么重要了

我打开了按钮，没有任何帮助，仍然很奇怪

重写button和buttonbase中的每个方法，看看这是否仍然没有任何帮助

查看表单设计器后，我发现唯一更改的属性是UseVisualStyleBackColor当为false时有效，当为true时无效，因此我做了一个覆盖，强制它为false，但仍然无效：/

我甚至试图删除partial关键字

我花了半天的时间阅读关于点击和按钮控制的解除朋友关系的方法

甚至找到了一个自定义控件测试按钮的扩展，它工作得很好，但没有理由这样做，因为它与我看到的唯一不同之处是OnPaint中关于某些渲染的if语句

。。。。什么都不管用

以下是切换开关的整体：

public partial class ToggleSwith : ButtonBase
{
        object _Lock = new object();
        private Color _OffColor = SystemColors.ControlDarkDark;
        private Color _OnColor = Color.LimeGreen;
        private bool _ColorText = false;
        // private bool _BeenDrawn = false;
        private bool _Checked = false;

        [Browsable(false)]
        public override string Text { get { return null; } }
        [Browsable(false)]
        public override bool AutoSize{get{return false;}}
        [Browsable(false)]
        public override ContentAlignment TextAlign { get { return ContentAlignment.MiddleLeft; } }
        [Category("Appearance")]
        public virtual Color OffColor { get { return _OffColor; } set { _OffColor = value; Invalidate(); } }
        [Category("Appearance")]
        public virtual Color OnColor { get { return _OnColor; } set { _OnColor = value; Invalidate(); } }
        [Category("Appearance")]
        public virtual bool ColorText { get { return _ColorText; } set { _ColorText = value; Invalidate(); } }
        [Category("Appearance")]
        public virtual bool Checked { get { return _Checked; } set { _Checked = value; Invalidate(); } }
        new public bool UseVisualStyleBackColor { get { return false; } set{} }

        protected override Size DefaultSize { get { return new Size(80, 18); } }
        protected override Size DefaultMinimumSize { get { return new Size(40, 13); } }

        public event EventHandler ToggleChanged;

        public ToggleSwith()
        {
            this.Size = new Size(80, 18);
            InitializeComponent();
            this.Click += ToggleSwith_Click;
        }

        void ToggleSwith_Click(object sender, EventArgs e)
        {
            lock (_Lock)
            {
                if (_Checked) _Checked = false;
                else _Checked = true;
            }
            OnToggleChanged();            
        }

        private void OnToggleChanged()
        {
            if (ToggleChanged != null)
            {
                EventArgs ea = new EventArgs();
                ToggleChanged(this, ea);
            }
        }

        protected override void OnPaint(PaintEventArgs e)
        {
            this.Controls.Clear();
            int toggleblocsize=(int)this.Size.Width/8;
            int indent = 23;
            int labelx = 2;
            // Declare and instantiate a new pen.
            SolidBrush OffPen = new SolidBrush(this.OffColor);
            SolidBrush OnPen = new SolidBrush(this.OnColor);
            SolidBrush BackgroundPen = new SolidBrush(this.BackColor);
            SolidBrush BlackPen = new SolidBrush(SystemColors.ControlText);
            Pen ControlDarkPen = new Pen(SystemColors.ControlDark);
            Pen ControlPen = new Pen(SystemColors.Control);
            e.Graphics.FillRectangle(BackgroundPen,0, 0, this.Size.Width,this.Size.Height);
            e.Graphics.DrawRectangle(ControlDarkPen, indent, -0, this.Size.Width - (indent+1), this.Size.Height-1);
            Label l = new Label();
            l.Font = this.Font;
            l.Size = new Size((indent-labelx),this.Size.Height);

            // if(this.Size.Height <13)l.Location= new Point(labelx,-1);
            //  else l.Location = new Point(labelx, 0);

            l.TextAlign = TextAlign;
            l.ForeColor = this.ForeColor;

            if (this._Checked)
            {
                //ligth
                e.Graphics.FillRectangle(OnPen, (indent + 2), 2, this.Size.Width - (indent + 4), this.Size.Height - 4);
                //Toggle
                e.Graphics.DrawRectangle(ControlPen, this.Size.Width - (toggleblocsize+1), -0, this.Size.Width - (indent + 1), this.Size.Height - 1);
                e.Graphics.FillRectangle(BlackPen, this.Size.Width - (toggleblocsize), -1, this.Size.Width, this.Size.Height + 1);
                if (ColorText) l.ForeColor = OnColor;
                l.Text = "On";
            }
            else
            {
                //ligth
                e.Graphics.FillRectangle(OffPen, (indent + 2), 2, this.Size.Width - (indent + 4), this.Size.Height - 4);
                //Toggle
                e.Graphics.DrawRectangle(ControlPen, indent , -0, (toggleblocsize + 1), this.Size.Height - 1);
                e.Graphics.FillRectangle(BlackPen, (indent+1) , -1,(toggleblocsize), this.Size.Height + 1);
                if (ColorText) l.ForeColor = this.ForeColor;
                l.Text = "Off";
            }
            this.Controls.Add(l);
        }

        public override Size GetPreferredSize(Size proposedSize)
        {
            return new Size(80, 18);
        }
    }

这并不是说我不能生活在一个平面的tapcontrol它只是为什么它不工作，困扰我

如有任何帮助，将不胜感激：

最后，一些问题的可视化文档：

以下是它应该如何工作：

这是一个正常的水龙头

---

把它修好了，现在可以用了，结果是出了点问题

第一个基类是错误的，它应该是一个控件

   public class ToggleSwith : Control

油漆上的事件改成了这个

    protected override void OnPaint(PaintEventArgs e)
    {
        //this.Controls.Clear();
        int toggleblocsize = (int)this.Size.Width / 6;
        int indent = 23;
        int labelx = 2;
        // Declare and instantiate a new pen.
        SolidBrush OffPen = new SolidBrush(this.OffColor);
        SolidBrush OnPen = new SolidBrush(this.OnColor);
        Rectangle texttangle = new Rectangle(new Point(labelx, 0), new Size(indent - labelx, this.Size.Height));


        SolidBrush BackgroundBrush = new SolidBrush(this.Parent.BackColor);
        SolidBrush ToggleBrush = new SolidBrush(SystemColors.ControlText);
        SolidBrush TextBrush = new SolidBrush(SystemColors.ControlText);
        Pen ControlDarkPen = new Pen(SystemColors.ControlDark);
        Pen ControlPen = new Pen(SystemColors.Control);
        e.Graphics.FillRectangle(BackgroundBrush, 0, 0, this.Size.Width, this.Size.Height);
        e.Graphics.FillRectangle(new SolidBrush(BackColor), indent, 0, this.Size.Width - indent, this.Size.Height);
        e.Graphics.DrawRectangle(ControlDarkPen, indent, -0, this.Size.Width - (indent + 1), this.Size.Height - 1);
        if (!this.Enabled)
        {
            OffPen = new SolidBrush(SystemColors.Control);
            OnPen = new SolidBrush(SystemColors.Control);
            ToggleBrush = new SolidBrush(SystemColors.ControlDark);
            TextBrush = new SolidBrush(SystemColors.Control);
        }
        if (this._Checked)
        {
            //ligth
            e.Graphics.FillRectangle(OnPen, (indent + 2), 2, this.Size.Width - (indent + 4), this.Size.Height - 4);
            //Toggle
            e.Graphics.DrawRectangle(ControlPen, this.Size.Width - (toggleblocsize + 1), -0, this.Size.Width - (indent + 1), this.Size.Height - 1);
            e.Graphics.FillRectangle(ToggleBrush, this.Size.Width - (toggleblocsize), -1, this.Size.Width, this.Size.Height + 1);
            if (ColorText && this.Enabled) TextBrush = new SolidBrush(OnColor);//_label.ForeColor = OnColor;
            // _label.Text = "On";
            // Draw string to screen.
            TextRenderer.DrawText(e.Graphics, OnText, this.Font, texttangle, TextBrush.Color, this.Parent.BackColor,
                                TextFormatFlags.HorizontalCenter |
                                TextFormatFlags.VerticalCenter |
                                TextFormatFlags.GlyphOverhangPadding);
        }
        else
        {
            //ligth
            e.Graphics.FillRectangle(OffPen, (indent + 2), 2, this.Size.Width - (indent + 4), this.Size.Height - 4);
            //Toggle
            e.Graphics.DrawRectangle(ControlPen, indent, -0, (toggleblocsize + 1), this.Size.Height - 1);
            e.Graphics.FillRectangle(ToggleBrush, (indent + 1), -1, (toggleblocsize), this.Size.Height + 1);
            if (ColorText && this.Enabled) TextBrush = new SolidBrush(SystemColors.ControlText);
            // Draw string to screen.
            TextRenderer.DrawText(e.Graphics, OffText, this.Font, texttangle, TextBrush.Color, this.Parent.BackColor,
                            TextFormatFlags.HorizontalCenter |
                            TextFormatFlags.VerticalCenter |
                            TextFormatFlags.GlyphOverhangPadding);
        }

---

这就得到了我想要的图形效果。

感谢mark将其清理干净：