如何在C#中创建自定义控件?

如何在C#中创建自定义控件?,c#,winforms,controls,C#,Winforms,Controls,所以我正在开发一个C程序,它的功能类似于IDE。 问题是,我是通过一个富文本框来实现的,自定义语法高亮显示效率非常低 我想知道是否有一种方法可以使自定义控件类似于富文本框(甚至基于富文本框),然后以更简单的方式构建语法高亮显示 那么,如何创建自定义控件?如果你非常好,你会给我指出一个关于它的好教程的方向 很容易从基本控件派生 public class CustomRichTextBox:RichTextBox { public CustomRichTextBox() {

所以我正在开发一个C程序,它的功能类似于IDE。 问题是,我是通过一个富文本框来实现的,自定义语法高亮显示效率非常低

我想知道是否有一种方法可以使自定义控件类似于富文本框(甚至基于富文本框),然后以更简单的方式构建语法高亮显示


那么,如何创建自定义控件?如果你非常好,你会给我指出一个关于它的好教程的方向

很容易从基本控件派生

public class CustomRichTextBox:RichTextBox
{
    public CustomRichTextBox()
    {
        this.Multiline = true;
        this.WordWrap = false;
        this.AcceptsTab = true;
        //...
    }
}

我建议看一些教程,比如

正如上面NavidRahmani所说,您不必从头开始—您可以扩展现有控件或使用已从不同库生成的控件


例如telerik控件。

简单但功能强大的示例:

Windows窗体:

WPF:


不,工具箱中没有一个控件试图假装是一个好的编辑器控件。TextBox和RichTextBox有非常不同的设计目标。这个问题已经解决了很多次,就我所知,这个问题已经解决了。

我发现本教程非常有用。希望这将对你帮助最大

它很简单,只需调用图形方法并绘制与控件对应的形状

假设您想创建一个自定义按钮,您知道按钮在系统中是一个矩形,所以只需使用C#中的LinearGradientBrush或SolidBrush in Paint()方法使用按钮坐标(x、y、宽度、高度)填充矩形即可。C#提供了ClientRectangle方法来获取使用矩形的控件的所有坐标。有许多使用矩形的组件,如按钮、面板、复选框、选项卡控件等

我认为这些链接也很有用

这里是完整的源代码,如果链接表单被发现损坏

    using System;  
using System.Collections.Generic;  
using System.Text;  
using System.Drawing;  
using System.Data;  
using System.Windows.Forms;  
using System.Drawing.Drawing2D;  


namespace Custom_Controls_in_CS  
{  
    public class ButtonZ : System.Windows.Forms.Button  
    {  
        Color clr1, clr2;  
        private Color color1 = Color.DodgerBlue;  
        private Color color2 = Color.MidnightBlue;  
        private Color m_hovercolor1 = Color.Turquoise;  
        private Color m_hovercolor2 = Color.DarkSlateGray;  
        private int color1Transparent = 250;  
        private int color2Transparent = 250;  
        private Color clickcolor1 = Color.Yellow;  
        private Color clickcolor2 = Color.Red;  
        private int angle = 90;  
        private int textX = 100;  
        private int textY = 25;  
        private String text = "";  
        public Color buttonborder_1 = Color.FromArgb(220, 220, 220);  
        public Color buttonborder_2 = Color.FromArgb(150, 150, 150);  
        public Boolean showButtonText = true;  
        public int borderWidth = 2;  
        public Color borderColor = Color.Transparent;  

        public enum ButtonsShapes  
        {  
            Rect,  
            RoundRect,  
            Circle  
        }  

        ButtonsShapes buttonShape;  

        public ButtonsShapes ButtonShape  
        {  
            get { return buttonShape; }  
            set  
            {  
                buttonShape = value; Invalidate();  
            }  
        }  

        public String ButtonText  
        {  
            get { return text; }  
            set { text = value; Invalidate(); }  
        }  

        public int BorderWidth  
        {  
            get { return borderWidth; }  
            set { borderWidth = value; Invalidate(); }  
        }  


        void SetBorderColor(Color bdrColor)  
        {  
            int red = bdrColor.R - 40;  
            int green = bdrColor.G - 40;  
            int blue = bdrColor.B - 40;  
            if (red < 0)  
                red = 0;  
            if (green < 0)  
                green = 0;  
            if (blue < 0)  
                blue = 0;  

            buttonborder_1 = Color.FromArgb(red, green, blue);  
            buttonborder_2 = bdrColor;  
        }  


        public Color BorderColor  
        {  
            get { return borderColor; }  
            set  
            {  
                borderColor = value;  
                if (borderColor == Color.Transparent)  
                {  
                    buttonborder_1 = Color.FromArgb(220, 220, 220);  
                    buttonborder_2 = Color.FromArgb(150, 150, 150);  
                }  
                else  
                {  
                    SetBorderColor(borderColor);  
                }  

            }  
        }  

        public Color StartColor  
        {  
            get { return color1; }  
            set { color1 = value; Invalidate(); }  
        }  
        public Color EndColor  
        {  
            get { return color2; }  
            set { color2 = value; Invalidate(); }  
        }  
        public Color MouseHoverColor1  
        {  
            get { return m_hovercolor1; }  
            set { m_hovercolor1 = value; Invalidate(); }  
        }  
        public Color MouseHoverColor2  
        {  
            get { return m_hovercolor2; }  
            set { m_hovercolor2 = value; Invalidate(); }  
        }  
        public Color MouseClickColor1  
        {  
            get { return clickcolor1; }  
            set { clickcolor1 = value; Invalidate(); }  
        }  
        public Color MouseClickColor2  
        {  
            get { return clickcolor2; }  
            set { clickcolor2 = value; Invalidate(); }  
        }  

        public int Transparent1  
        {  
            get { return color1Transparent; }  
            set  
            {  
                color1Transparent = value;  
                if (color1Transparent > 255)  
                {  
                    color1Transparent = 255;  
                    Invalidate();  
                }  
                else  
                    Invalidate();  
            }  
        }  

        public int Transparent2  
        {  
            get { return color2Transparent; }  
            set  
            {  
                color2Transparent = value;  
                if (color2Transparent > 255)  
                {  
                    color2Transparent = 255;  
                    Invalidate();  
                }  
                else  
                    Invalidate();  
            }  
        }  

        public int GradientAngle  
        {  
            get { return angle; }  
            set { angle = value; Invalidate(); }  
        }  

        public int TextLocation_X  
        {  
            get { return textX; }  
            set { textX = value; Invalidate(); }  
        }  
        public int TextLocation_Y  
        {  
            get { return textY; }  
            set { textY = value; Invalidate(); }  
        }  

        public Boolean ShowButtontext  
        {  
            get { return showButtonText; }  
            set { showButtonText = value; Invalidate(); }  
        }  


        public ButtonZ()  
        {  
            this.Size = new Size(100, 40);  
            this.BackColor = Color.Transparent;  
            this.FlatStyle = FlatStyle.Flat;  
            this.FlatAppearance.BorderSize = 0;  
            this.FlatAppearance.MouseOverBackColor = Color.Transparent;  
            this.FlatAppearance.MouseDownBackColor = Color.Transparent;  
            text = this.Text;  
        }  


        //method mouse enter  
        protected override void OnMouseEnter(EventArgs e)  
        {  
            base.OnMouseEnter(e);  
            clr1 = color1;  
            clr2 = color2;  
            color1 = m_hovercolor1;  
            color2 = m_hovercolor2;  
        }  
        //method mouse leave  
        protected override void OnMouseLeave(EventArgs e)  
        {  
            base.OnMouseLeave(e);  
            color1 = clr1;  
            color2 = clr2;  
            SetBorderColor(borderColor);  
        }  

        protected override void OnMouseDown(MouseEventArgs mevent)  
        {  
            base.OnMouseDown(mevent);  
            color1 = clickcolor1;  
            color2 = clickcolor2;  

            int red = borderColor.R - 40;  
            int green = borderColor.G - 40;  
            int blue = borderColor.B - 40;  
            if (red < 0)  
                red = 0;  
            if (green < 0)  
                green = 0;  
            if (blue < 0)  
                blue = 0;  

            buttonborder_2 = Color.FromArgb(red, green, blue);  
            buttonborder_1 = borderColor;  
            this.Invalidate();  
        }  

        protected override void OnMouseUp(MouseEventArgs mevent)  
        {  
            base.OnMouseUp(mevent);  
            OnMouseLeave(mevent);  
            color1 = clr1;  
            color2 = clr2;  
            SetBorderColor(borderColor);  
            this.Invalidate();  
        }  

        protected override void OnLostFocus(EventArgs e)  
        {  
            base.OnLostFocus(e);  
            color1 = clr1;  
            color2 = clr2;  
            this.Invalidate();  
        }  

        protected override void OnResize(EventArgs e)  
        {  
            base.OnResize(e);  
            textX = (int)((this.Width / 3) - 1);  
            textY = (int)((this.Height / 3) + 5);  
        }  


        //draw circular button function  
        void DrawCircularButton(Graphics g)  
        {  
            Color c1 = Color.FromArgb(color1Transparent, color1);  
            Color c2 = Color.FromArgb(color2Transparent, color2);  


            Brush b = new System.Drawing.Drawing2D.LinearGradientBrush(ClientRectangle, c1, c2, angle);  
            g.FillEllipse(b, 5, 5, this.Width - 10, this.Height - 10);  


            for (int i = 0; i < borderWidth; i++)  
            {  
                g.DrawArc(new Pen(new SolidBrush(buttonborder_1)), 5 + i, 5, this.Width - 10, this.Height - 10, 120, 180);  
                g.DrawArc(new Pen(new SolidBrush(buttonborder_2)), 5, 5, this.Width - (10 + i), this.Height - 10, 300, 180);  
            }  




            if (showButtonText)  
            {  
                Point p = new Point(textX, textY);  
                SolidBrush frcolor = new SolidBrush(this.ForeColor);  
                g.DrawString(text, this.Font, frcolor, p);  
            }  

            b.Dispose();  
        }  

        //draw rectangular button function  
        void DrawRectangularButton(Graphics g)  
        {  
            Color c1 = Color.FromArgb(color1Transparent, color1);  
            Color c2 = Color.FromArgb(color2Transparent, color2);  


            Brush b = new System.Drawing.Drawing2D.LinearGradientBrush(ClientRectangle, c1, c2, angle);  
            g.FillRectangle(b, 0, 0, this.Width, this.Height);  


            for (int i = 0; i < borderWidth; i++)  
            {  
                g.DrawLine(new Pen(new SolidBrush(buttonborder_1)), this.Width - i, 0, this.Width - i, this.Height);  
                g.DrawLine(new Pen(new SolidBrush(buttonborder_1)), 0, this.Height - i, this.Width, this.Height - i);  

                g.DrawLine(new Pen(new SolidBrush(buttonborder_2)), 0 + i, 0, 0 + i, this.Height);  
                g.DrawLine(new Pen(new SolidBrush(buttonborder_2)), 0, 0 + i, this.Width, i);  
            }  



            if (showButtonText)  
            {  
                Point p = new Point(textX, textY);  
                SolidBrush frcolor = new SolidBrush(this.ForeColor);  
                g.DrawString(text, this.Font, frcolor, p);  
            }  

            b.Dispose();  
        }  


        //draw round rectangular button function  
        void DrawRoundRectangularButton(Graphics g)  
        {  
            Color c1 = Color.FromArgb(color1Transparent, color1);  
            Color c2 = Color.FromArgb(color2Transparent, color2);  


            Brush b = new System.Drawing.Drawing2D.LinearGradientBrush(ClientRectangle, c1, c2, angle);  

            Region region = new System.Drawing.Region(new Rectangle(5, 5, this.Width, this.Height));  

            GraphicsPath grp = new GraphicsPath();  
            grp.AddArc(5, 5, 40, 40, 180, 90);  
            grp.AddLine(25, 5, this.Width - 25, 5);  
            grp.AddArc(this.Width - 45, 5, 40, 40, 270, 90);  
            grp.AddLine(this.Width - 5, 25, this.Width - 5, this.Height - 25);  
            grp.AddArc(this.Width - 45, this.Height - 45, 40, 40, 0, 90);  
            grp.AddLine(25, this.Height - 5, this.Width - 25, this.Height - 5);  
            grp.AddArc(5, this.Height - 45, 40, 40, 90, 90);  
            grp.AddLine(5, 25, 5, this.Height - 25);  

            region.Intersect(grp);  

            g.FillRegion(b, region);  

            for (int i = 0; i < borderWidth; i++)  
            {  
                g.DrawArc(new Pen(buttonborder_1), 5 + i, 5 + i, 40, 40, 180, 90);  
                g.DrawLine(new Pen(buttonborder_1), 25, 5 + i, this.Width - 25, 5 + i);  
                g.DrawArc(new Pen(buttonborder_1), this.Width - 45 - i, 5 + i, 40, 40, 270, 90);  
                g.DrawLine(new Pen(buttonborder_1), 5 + i, 25, 5 + i, this.Height - 25);  


                g.DrawLine(new Pen(buttonborder_2), this.Width - 5 - i, 25, this.Width - 5 - i, this.Height - 25);  
                g.DrawArc(new Pen(buttonborder_2), this.Width - 45 - i, this.Height - 45 - i, 40, 40, 0, 90);  
                g.DrawLine(new Pen(buttonborder_2), 25, this.Height - 5 - i, this.Width - 25, this.Height - 5 - i);  
                g.DrawArc(new Pen(buttonborder_2), 5 + i, this.Height - 45 - i, 40, 40, 90, 90);  

            }  



            if (showButtonText)  
            {  
                Point p = new Point(textX, textY);  
                SolidBrush frcolor = new SolidBrush(this.ForeColor);  
                g.DrawString(text, this.Font, frcolor, p);  
            }  

            b.Dispose();  
        }  


        protected override void OnPaint(PaintEventArgs e)  
        {  
            base.OnPaint(e);  

            switch (buttonShape)  
            {  
                case ButtonsShapes.Circle:  
                    this.DrawCircularButton(e.Graphics);  
                    break;  

                case ButtonsShapes.Rect:  
                    this.DrawRectangularButton(e.Graphics);  
                    break;  

                case ButtonsShapes.RoundRect:  
                    this.DrawRoundRectangularButton(e.Graphics);  
                    break;  
            }  
        }  


    }  
}   
使用系统;
使用System.Collections.Generic;
使用系统文本;
使用系统图;
使用系统数据;
使用System.Windows.Forms;
使用System.Drawing.Drawing2D;
命名空间自定义\u控件\u在\u CS中
{  
公共类按钮nz:System.Windows.Forms.Button
{  
颜色clr1,clr2;
专用颜色color1=Color.DodgerBlue;
专用颜色color2=Color.MidnightBlue;
私有颜色m_hovercolor1=颜色。绿松石色;
私有颜色m_hovercolor2=Color.DarkSlateGray;
私有int color1Transparent=250;
私有int color2Transparent=250;
私有颜色clickcolor1=Color.Yellow;
私有颜色clickcolor2=Color.Red;
私人内角=90;
私有int textX=100;
私有int textY=25;
私有字符串text=“”;
公共颜色按钮顺序_1=Color.FromArgb(220,220,220);
公共颜色按钮顺序_2=Color.FromArgb(150150150);
公共布尔值showButtonText=true;
公共int-borderWidth=2;
公共颜色边框颜色=颜色。透明;
公共枚举按钮形状
{  
直肠,
RoundRect,
圆圈
}  
钮扣形状钮扣形状;
公共按钮形状按钮形状
{  
获取{return buttonShape;}
设置
{  
buttonShape=值;无效();
}  
}  
公共字符串按钮文本
{  
获取{返回文本;}
设置{text=value;Invalidate();}
}  
公共整数边框宽度
{  
获取{return borderWidth;}
设置{borderWidth=value;Invalidate();}
}  
无效颜色(颜色bdrColor)
{  
int red=bdrColor.R-40;
int绿色=bdrColor.G-40;
int blue=bdrColor.B-40;
如果(红色<0)
红色=0;
如果(绿色<0)
绿色=0;
如果(蓝色<0)
蓝色=0;
ButtonOrder_1=颜色。来自argb(红色、绿色、蓝色);
按钮顺序_2=BDR颜色;
}  
公共颜色边框颜色
{  
获取{return borderColor;}
设置
{  
边框颜色=值;
if(borderColor==Color.Transparent)
{  
ButtonOrder_1=颜色。来自argb(220、220、220);
ButtonOrder_2=颜色。来自argb(150、150、150);
}  
其他的
{  
颜色(边框颜色);
}  
}  
}  
公共色星色
{  
获取{return color1;}
设置{color1=value;Invalidate();}
}  
公共色底色
{  
获取{return color2;}
设置{color2=value;Invalidate();}
}  
公共颜色鼠标套颜色1
{  
获取{return m_hovercolor1;}
设置{m_hovercolor1=value;Invalidate();}
}  
公共颜色鼠标套颜色2
{  
获取{return m_hovercolor2;}
设置{m_hovercolor2=value;使无效();}
}  
公共色鼠标颜色1
{  
获取{return clickcolor1;}
设置{clickcolor1=value;无效();}
}  
公共色鼠标颜色2
{  
获取{return clickcolor2;}
设置{clickcolor2=值;无效();}
}  
公共int透明1
{  
获取{return color1Transparent;}
设置
{  
Color1透明度=数值;
如果(颜色1透明度>255)
{  
彩色1透明