Вопрос Кто может дать нормальное округления кнопок c#

[aeghed]

короче нашел округления но они прям ужас могли бы вы дать округления или ссылку на нее

 

[ZazaSASASAS]

Актуально?
Winforms or WPF?

 

[aeghed]

Актуально?
Winforms or WPF?

Winforms

 

[ZazaSASASAS]

попробуй 2 этих скрипта
(проверял, но почему-то toolbox не находил)

using System;
using System.Drawing;
using System.Drawing.Drawing2D;
using System.Windows.Forms;

public class RoundButton : Control
{
    private int _cornerRadius = 50;
    public int CornerRadius
    {
        get { return _cornerRadius; }
        set { _cornerRadius = value; this.Invalidate(); }
    }

    private SmoothingMode _smoothingMode = SmoothingMode.AntiAlias;
    public SmoothingMode SmoothingMode
    {
        get { return _smoothingMode; }
        set { _smoothingMode = value; this.Invalidate(); }
    }

    GraphicsPath GetRoundPath(RectangleF Rect, int radius)
    {
        float r2 = radius / 2f;
        GraphicsPath GraphPath = new GraphicsPath();

        GraphPath.AddArc(Rect.X, Rect.Y, radius, radius, 180, 90);
        GraphPath.AddLine(Rect.X + r2, Rect.Y, Rect.Width - r2, Rect.Y);
        GraphPath.AddArc(Rect.X + Rect.Width - radius, Rect.Y, radius, radius, 270, 90);
        GraphPath.AddLine(Rect.Width, Rect.Y + r2, Rect.Width, Rect.Height - r2);
        GraphPath.AddArc(Rect.X + Rect.Width - radius,
                            Rect.Y + Rect.Height - radius, radius, radius, 0, 90);
        GraphPath.AddLine(Rect.Width - r2, Rect.Height, Rect.X + r2, Rect.Height);
        GraphPath.AddArc(Rect.X, Rect.Y + Rect.Height - radius, radius, radius, 90, 90);
        GraphPath.AddLine(Rect.X, Rect.Height - r2, Rect.X, Rect.Y + r2);

        GraphPath.CloseFigure();
        return GraphPath;
    }

    protected override void OnPaint(PaintEventArgs e)
    {
        base.OnPaint(e);
        e.Graphics.SmoothingMode = _smoothingMode;

        RectangleF Rect = new RectangleF(0, 0, this.Width, this.Height);
        GraphicsPath GraphPath = GetRoundPath(Rect, _cornerRadius);

        this.Region = new Region(GraphPath);
        using (Pen pen = new Pen(Color.Lime, 1.75f))
        {
            pen.Alignment = PenAlignment.Inset;
            e.Graphics.DrawPath(pen, GraphPath);
        }
    }
}

using System;
using System.Drawing;
using System.Windows.Forms;

namespace ePOSOne.btnProduct
{
    public class Button_WOC : Button
    {
        private Color _borderColor = Color.Silver;
        private Color _onHoverBorderColor = Color.Gray;
        private Color _buttonColor = Color.Red;
        private Color _onHoverButtonColor = Color.Yellow;
        private Color _textColor = Color.White;
        private Color _onHoverTextColor = Color.Gray;

        private bool _isHovering;
        private int _borderThickness = 6;
        private int _borderThicknessByTwo = 3;


        public Button_WOC()
        {
            DoubleBuffered = true;
            MouseEnter += (sender, e) =>
            {
                _isHovering = true;
                Invalidate();
            };
            MouseLeave += (sender, e) =>
            {
                _isHovering = false;
                Invalidate();
            };
        }


        protected override void OnPaint(PaintEventArgs e)
        {
            base.OnPaint(e);
            Graphics g = e.Graphics;
            g.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.AntiAlias;
            Brush brush = new SolidBrush(_isHovering ? _onHoverBorderColor : _borderColor);

            //Border
            g.FillEllipse(brush, 0, 0, Height, Height);
            g.FillEllipse(brush, Width - Height, 0, Height, Height);
            g.FillRectangle(brush, Height / 2, 0, Width - Height, Height);

            brush.Dispose();
            brush = new SolidBrush(_isHovering ? _onHoverButtonColor : _buttonColor);

            //Inner part. Button itself
            g.FillEllipse(brush, _borderThicknessByTwo, _borderThicknessByTwo, Height - _borderThickness,
                Height - _borderThickness);
            g.FillEllipse(brush, (Width - Height) + _borderThicknessByTwo, _borderThicknessByTwo,
                Height - _borderThickness, Height - _borderThickness);
            g.FillRectangle(brush, Height / 2 + _borderThicknessByTwo, _borderThicknessByTwo,
                Width - Height - _borderThickness, Height - _borderThickness);

            brush.Dispose();
            brush = new SolidBrush(_isHovering ? _onHoverTextColor : _textColor);

            //Button Text
            SizeF stringSize = g.MeasureString(Text, Font);
            g.DrawString(Text, Font, brush, (Width - stringSize.Width) / 2, (Height - stringSize.Height) / 2);
        }


        public Color BorderColor
        {
            get => _borderColor;
            set
            {
                _borderColor = value;
                Invalidate();
            }
        }

        public Color OnHoverBorderColor
        {
            get => _onHoverBorderColor;
            set
            {
                _onHoverBorderColor = value;
                Invalidate();
            }
        }

        public Color ButtonColor
        {
            get => _buttonColor;
            set
            {
                _buttonColor = value;
                Invalidate();
            }
        }

        public Color OnHoverButtonColor
        {
            get => _onHoverButtonColor;
            set
            {
                _onHoverButtonColor = value;
                Invalidate();
            }
        }

        public Color TextColor
        {
            get => _textColor;
            set
            {
                _textColor = value;
                Invalidate();
            }
        }

        public Color OnHoverTextColor
        {
            get => _onHoverTextColor;
            set
            {
                _onHoverTextColor = value;
                Invalidate();
            }
        }
    }
}

просто создай скрипт cs и вставь из двух
и нажми ctrl+shift+b или build (сборка) -> Build Solution(собрать решение)
2 вариант
просто скачать кряк bunifu или guna 2 чтоб не мучаться с другими компонентами

 

[aeghed]

попробуй 2 этих скрипта
(проверял, но почему-то toolbox не находил)

using System;
using System.Drawing;
using System.Drawing.Drawing2D;
using System.Windows.Forms;

public class RoundButton : Control
{
    private int _cornerRadius = 50;
    public int CornerRadius
    {
        get { return _cornerRadius; }
        set { _cornerRadius = value; this.Invalidate(); }
    }

    private SmoothingMode _smoothingMode = SmoothingMode.AntiAlias;
    public SmoothingMode SmoothingMode
    {
        get { return _smoothingMode; }
        set { _smoothingMode = value; this.Invalidate(); }
    }

    GraphicsPath GetRoundPath(RectangleF Rect, int radius)
    {
        float r2 = radius / 2f;
        GraphicsPath GraphPath = new GraphicsPath();

        GraphPath.AddArc(Rect.X, Rect.Y, radius, radius, 180, 90);
        GraphPath.AddLine(Rect.X + r2, Rect.Y, Rect.Width - r2, Rect.Y);
        GraphPath.AddArc(Rect.X + Rect.Width - radius, Rect.Y, radius, radius, 270, 90);
        GraphPath.AddLine(Rect.Width, Rect.Y + r2, Rect.Width, Rect.Height - r2);
        GraphPath.AddArc(Rect.X + Rect.Width - radius,
                            Rect.Y + Rect.Height - radius, radius, radius, 0, 90);
        GraphPath.AddLine(Rect.Width - r2, Rect.Height, Rect.X + r2, Rect.Height);
        GraphPath.AddArc(Rect.X, Rect.Y + Rect.Height - radius, radius, radius, 90, 90);
        GraphPath.AddLine(Rect.X, Rect.Height - r2, Rect.X, Rect.Y + r2);

        GraphPath.CloseFigure();
        return GraphPath;
    }

    protected override void OnPaint(PaintEventArgs e)
    {
        base.OnPaint(e);
        e.Graphics.SmoothingMode = _smoothingMode;

        RectangleF Rect = new RectangleF(0, 0, this.Width, this.Height);
        GraphicsPath GraphPath = GetRoundPath(Rect, _cornerRadius);

        this.Region = new Region(GraphPath);
        using (Pen pen = new Pen(Color.Lime, 1.75f))
        {
            pen.Alignment = PenAlignment.Inset;
            e.Graphics.DrawPath(pen, GraphPath);
        }
    }
}

using System;
using System.Drawing;
using System.Windows.Forms;

namespace ePOSOne.btnProduct
{
    public class Button_WOC : Button
    {
        private Color _borderColor = Color.Silver;
        private Color _onHoverBorderColor = Color.Gray;
        private Color _buttonColor = Color.Red;
        private Color _onHoverButtonColor = Color.Yellow;
        private Color _textColor = Color.White;
        private Color _onHoverTextColor = Color.Gray;

        private bool _isHovering;
        private int _borderThickness = 6;
        private int _borderThicknessByTwo = 3;


        public Button_WOC()
        {
            DoubleBuffered = true;
            MouseEnter += (sender, e) =>
            {
                _isHovering = true;
                Invalidate();
            };
            MouseLeave += (sender, e) =>
            {
                _isHovering = false;
                Invalidate();
            };
        }


        protected override void OnPaint(PaintEventArgs e)
        {
            base.OnPaint(e);
            Graphics g = e.Graphics;
            g.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.AntiAlias;
            Brush brush = new SolidBrush(_isHovering ? _onHoverBorderColor : _borderColor);

            //Border
            g.FillEllipse(brush, 0, 0, Height, Height);
            g.FillEllipse(brush, Width - Height, 0, Height, Height);
            g.FillRectangle(brush, Height / 2, 0, Width - Height, Height);

            brush.Dispose();
            brush = new SolidBrush(_isHovering ? _onHoverButtonColor : _buttonColor);

            //Inner part. Button itself
            g.FillEllipse(brush, _borderThicknessByTwo, _borderThicknessByTwo, Height - _borderThickness,
                Height - _borderThickness);
            g.FillEllipse(brush, (Width - Height) + _borderThicknessByTwo, _borderThicknessByTwo,
                Height - _borderThickness, Height - _borderThickness);
            g.FillRectangle(brush, Height / 2 + _borderThicknessByTwo, _borderThicknessByTwo,
                Width - Height - _borderThickness, Height - _borderThickness);

            brush.Dispose();
            brush = new SolidBrush(_isHovering ? _onHoverTextColor : _textColor);

            //Button Text
            SizeF stringSize = g.MeasureString(Text, Font);
            g.DrawString(Text, Font, brush, (Width - stringSize.Width) / 2, (Height - stringSize.Height) / 2);
        }


        public Color BorderColor
        {
            get => _borderColor;
            set
            {
                _borderColor = value;
                Invalidate();
            }
        }

        public Color OnHoverBorderColor
        {
            get => _onHoverBorderColor;
            set
            {
                _onHoverBorderColor = value;
                Invalidate();
            }
        }

        public Color ButtonColor
        {
            get => _buttonColor;
            set
            {
                _buttonColor = value;
                Invalidate();
            }
        }

        public Color OnHoverButtonColor
        {
            get => _onHoverButtonColor;
            set
            {
                _onHoverButtonColor = value;
                Invalidate();
            }
        }

        public Color TextColor
        {
            get => _textColor;
            set
            {
                _textColor = value;
                Invalidate();
            }
        }

        public Color OnHoverTextColor
        {
            get => _onHoverTextColor;
            set
            {
                _onHoverTextColor = value;
                Invalidate();
            }
        }
    }
}

просто создай скрипт cs и вставь из двух
и нажми ctrl+shift+b или build (сборка) -> Build Solution(собрать решение)
2 вариант
просто скачать кряк bunifu или guna 2 чтоб не мучаться с другими компонентами

у меня есть guna

попробуй 2 этих скрипта
(проверял, но почему-то toolbox не находил)

using System;
using System.Drawing;
using System.Drawing.Drawing2D;
using System.Windows.Forms;

public class RoundButton : Control
{
    private int _cornerRadius = 50;
    public int CornerRadius
    {
        get { return _cornerRadius; }
        set { _cornerRadius = value; this.Invalidate(); }
    }

    private SmoothingMode _smoothingMode = SmoothingMode.AntiAlias;
    public SmoothingMode SmoothingMode
    {
        get { return _smoothingMode; }
        set { _smoothingMode = value; this.Invalidate(); }
    }

    GraphicsPath GetRoundPath(RectangleF Rect, int radius)
    {
        float r2 = radius / 2f;
        GraphicsPath GraphPath = new GraphicsPath();

        GraphPath.AddArc(Rect.X, Rect.Y, radius, radius, 180, 90);
        GraphPath.AddLine(Rect.X + r2, Rect.Y, Rect.Width - r2, Rect.Y);
        GraphPath.AddArc(Rect.X + Rect.Width - radius, Rect.Y, radius, radius, 270, 90);
        GraphPath.AddLine(Rect.Width, Rect.Y + r2, Rect.Width, Rect.Height - r2);
        GraphPath.AddArc(Rect.X + Rect.Width - radius,
                            Rect.Y + Rect.Height - radius, radius, radius, 0, 90);
        GraphPath.AddLine(Rect.Width - r2, Rect.Height, Rect.X + r2, Rect.Height);
        GraphPath.AddArc(Rect.X, Rect.Y + Rect.Height - radius, radius, radius, 90, 90);
        GraphPath.AddLine(Rect.X, Rect.Height - r2, Rect.X, Rect.Y + r2);

        GraphPath.CloseFigure();
        return GraphPath;
    }

    protected override void OnPaint(PaintEventArgs e)
    {
        base.OnPaint(e);
        e.Graphics.SmoothingMode = _smoothingMode;

        RectangleF Rect = new RectangleF(0, 0, this.Width, this.Height);
        GraphicsPath GraphPath = GetRoundPath(Rect, _cornerRadius);

        this.Region = new Region(GraphPath);
        using (Pen pen = new Pen(Color.Lime, 1.75f))
        {
            pen.Alignment = PenAlignment.Inset;
            e.Graphics.DrawPath(pen, GraphPath);
        }
    }
}

using System;
using System.Drawing;
using System.Windows.Forms;

namespace ePOSOne.btnProduct
{
    public class Button_WOC : Button
    {
        private Color _borderColor = Color.Silver;
        private Color _onHoverBorderColor = Color.Gray;
        private Color _buttonColor = Color.Red;
        private Color _onHoverButtonColor = Color.Yellow;
        private Color _textColor = Color.White;
        private Color _onHoverTextColor = Color.Gray;

        private bool _isHovering;
        private int _borderThickness = 6;
        private int _borderThicknessByTwo = 3;


        public Button_WOC()
        {
            DoubleBuffered = true;
            MouseEnter += (sender, e) =>
            {
                _isHovering = true;
                Invalidate();
            };
            MouseLeave += (sender, e) =>
            {
                _isHovering = false;
                Invalidate();
            };
        }


        protected override void OnPaint(PaintEventArgs e)
        {
            base.OnPaint(e);
            Graphics g = e.Graphics;
            g.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.AntiAlias;
            Brush brush = new SolidBrush(_isHovering ? _onHoverBorderColor : _borderColor);

            //Border
            g.FillEllipse(brush, 0, 0, Height, Height);
            g.FillEllipse(brush, Width - Height, 0, Height, Height);
            g.FillRectangle(brush, Height / 2, 0, Width - Height, Height);

            brush.Dispose();
            brush = new SolidBrush(_isHovering ? _onHoverButtonColor : _buttonColor);

            //Inner part. Button itself
            g.FillEllipse(brush, _borderThicknessByTwo, _borderThicknessByTwo, Height - _borderThickness,
                Height - _borderThickness);
            g.FillEllipse(brush, (Width - Height) + _borderThicknessByTwo, _borderThicknessByTwo,
                Height - _borderThickness, Height - _borderThickness);
            g.FillRectangle(brush, Height / 2 + _borderThicknessByTwo, _borderThicknessByTwo,
                Width - Height - _borderThickness, Height - _borderThickness);

            brush.Dispose();
            brush = new SolidBrush(_isHovering ? _onHoverTextColor : _textColor);

            //Button Text
            SizeF stringSize = g.MeasureString(Text, Font);
            g.DrawString(Text, Font, brush, (Width - stringSize.Width) / 2, (Height - stringSize.Height) / 2);
        }


        public Color BorderColor
        {
            get => _borderColor;
            set
            {
                _borderColor = value;
                Invalidate();
            }
        }

        public Color OnHoverBorderColor
        {
            get => _onHoverBorderColor;
            set
            {
                _onHoverBorderColor = value;
                Invalidate();
            }
        }

        public Color ButtonColor
        {
            get => _buttonColor;
            set
            {
                _buttonColor = value;
                Invalidate();
            }
        }

        public Color OnHoverButtonColor
        {
            get => _onHoverButtonColor;
            set
            {
                _onHoverButtonColor = value;
                Invalidate();
            }
        }

        public Color TextColor
        {
            get => _textColor;
            set
            {
                _textColor = value;
                Invalidate();
            }
        }

        public Color OnHoverTextColor
        {
            get => _onHoverTextColor;
            set
            {
                _onHoverTextColor = value;
                Invalidate();
            }
        }
    }
}

просто создай скрипт cs и вставь из двух
и нажми ctrl+shift+b или build (сборка) -> Build Solution(собрать решение)
2 вариант
просто скачать кряк bunifu или guna 2 чтоб не мучаться с другими компонентами

вроде ты не поставил namespace

public class RoundButton : Control
{
    private int _cornerRadius = 50;
    public int CornerRadius
    {
        get { return _cornerRadius; }
        set { _cornerRadius = value; this.Invalidate(); }
    }

    private SmoothingMode _smoothingMode = SmoothingMode.AntiAlias;
    public SmoothingMode SmoothingMode
    {
        get { return _smoothingMode; }
        set { _smoothingMode = value; this.Invalidate(); }
    }

    GraphicsPath GetRoundPath(RectangleF Rect, int radius)
    {
        float r2 = radius / 2f;
        GraphicsPath GraphPath = new GraphicsPath();

        GraphPath.AddArc(Rect.X, Rect.Y, radius, radius, 180, 90);
        GraphPath.AddLine(Rect.X + r2, Rect.Y, Rect.Width - r2, Rect.Y);
        GraphPath.AddArc(Rect.X + Rect.Width - radius, Rect.Y, radius, radius, 270, 90);
        GraphPath.AddLine(Rect.Width, Rect.Y + r2, Rect.Width, Rect.Height - r2);
        GraphPath.AddArc(Rect.X + Rect.Width - radius,
                            Rect.Y + Rect.Height - radius, radius, radius, 0, 90);
        GraphPath.AddLine(Rect.Width - r2, Rect.Height, Rect.X + r2, Rect.Height);
        GraphPath.AddArc(Rect.X, Rect.Y + Rect.Height - radius, radius, radius, 90, 90);
        GraphPath.AddLine(Rect.X, Rect.Height - r2, Rect.X, Rect.Y + r2);

        GraphPath.CloseFigure();
        return GraphPath;
    }

    protected override void OnPaint(PaintEventArgs e)
    {
        base.OnPaint(e);
        e.Graphics.SmoothingMode = _smoothingMode;

        RectangleF Rect = new RectangleF(0, 0, this.Width, this.Height);
        GraphicsPath GraphPath = GetRoundPath(Rect, _cornerRadius);

        this.Region = new Region(GraphPath);
        using (Pen pen = new Pen(Color.Lime, 1.75f))
        {
            pen.Alignment = PenAlignment.Inset;
            e.Graphics.DrawPath(pen, GraphPath);
        }
    }
}

попробуй 2 этих скрипта
(проверял, но почему-то toolbox не находил)

using System;
using System.Drawing;
using System.Drawing.Drawing2D;
using System.Windows.Forms;

public class RoundButton : Control
{
    private int _cornerRadius = 50;
    public int CornerRadius
    {
        get { return _cornerRadius; }
        set { _cornerRadius = value; this.Invalidate(); }
    }

    private SmoothingMode _smoothingMode = SmoothingMode.AntiAlias;
    public SmoothingMode SmoothingMode
    {
        get { return _smoothingMode; }
        set { _smoothingMode = value; this.Invalidate(); }
    }

    GraphicsPath GetRoundPath(RectangleF Rect, int radius)
    {
        float r2 = radius / 2f;
        GraphicsPath GraphPath = new GraphicsPath();

        GraphPath.AddArc(Rect.X, Rect.Y, radius, radius, 180, 90);
        GraphPath.AddLine(Rect.X + r2, Rect.Y, Rect.Width - r2, Rect.Y);
        GraphPath.AddArc(Rect.X + Rect.Width - radius, Rect.Y, radius, radius, 270, 90);
        GraphPath.AddLine(Rect.Width, Rect.Y + r2, Rect.Width, Rect.Height - r2);
        GraphPath.AddArc(Rect.X + Rect.Width - radius,
                            Rect.Y + Rect.Height - radius, radius, radius, 0, 90);
        GraphPath.AddLine(Rect.Width - r2, Rect.Height, Rect.X + r2, Rect.Height);
        GraphPath.AddArc(Rect.X, Rect.Y + Rect.Height - radius, radius, radius, 90, 90);
        GraphPath.AddLine(Rect.X, Rect.Height - r2, Rect.X, Rect.Y + r2);

        GraphPath.CloseFigure();
        return GraphPath;
    }

    protected override void OnPaint(PaintEventArgs e)
    {
        base.OnPaint(e);
        e.Graphics.SmoothingMode = _smoothingMode;

        RectangleF Rect = new RectangleF(0, 0, this.Width, this.Height);
        GraphicsPath GraphPath = GetRoundPath(Rect, _cornerRadius);

        this.Region = new Region(GraphPath);
        using (Pen pen = new Pen(Color.Lime, 1.75f))
        {
            pen.Alignment = PenAlignment.Inset;
            e.Graphics.DrawPath(pen, GraphPath);
        }
    }
}

using System;
using System.Drawing;
using System.Windows.Forms;

namespace ePOSOne.btnProduct
{
    public class Button_WOC : Button
    {
        private Color _borderColor = Color.Silver;
        private Color _onHoverBorderColor = Color.Gray;
        private Color _buttonColor = Color.Red;
        private Color _onHoverButtonColor = Color.Yellow;
        private Color _textColor = Color.White;
        private Color _onHoverTextColor = Color.Gray;

        private bool _isHovering;
        private int _borderThickness = 6;
        private int _borderThicknessByTwo = 3;


        public Button_WOC()
        {
            DoubleBuffered = true;
            MouseEnter += (sender, e) =>
            {
                _isHovering = true;
                Invalidate();
            };
            MouseLeave += (sender, e) =>
            {
                _isHovering = false;
                Invalidate();
            };
        }


        protected override void OnPaint(PaintEventArgs e)
        {
            base.OnPaint(e);
            Graphics g = e.Graphics;
            g.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.AntiAlias;
            Brush brush = new SolidBrush(_isHovering ? _onHoverBorderColor : _borderColor);

            //Border
            g.FillEllipse(brush, 0, 0, Height, Height);
            g.FillEllipse(brush, Width - Height, 0, Height, Height);
            g.FillRectangle(brush, Height / 2, 0, Width - Height, Height);

            brush.Dispose();
            brush = new SolidBrush(_isHovering ? _onHoverButtonColor : _buttonColor);

            //Inner part. Button itself
            g.FillEllipse(brush, _borderThicknessByTwo, _borderThicknessByTwo, Height - _borderThickness,
                Height - _borderThickness);
            g.FillEllipse(brush, (Width - Height) + _borderThicknessByTwo, _borderThicknessByTwo,
                Height - _borderThickness, Height - _borderThickness);
            g.FillRectangle(brush, Height / 2 + _borderThicknessByTwo, _borderThicknessByTwo,
                Width - Height - _borderThickness, Height - _borderThickness);

            brush.Dispose();
            brush = new SolidBrush(_isHovering ? _onHoverTextColor : _textColor);

            //Button Text
            SizeF stringSize = g.MeasureString(Text, Font);
            g.DrawString(Text, Font, brush, (Width - stringSize.Width) / 2, (Height - stringSize.Height) / 2);
        }


        public Color BorderColor
        {
            get => _borderColor;
            set
            {
                _borderColor = value;
                Invalidate();
            }
        }

        public Color OnHoverBorderColor
        {
            get => _onHoverBorderColor;
            set
            {
                _onHoverBorderColor = value;
                Invalidate();
            }
        }

        public Color ButtonColor
        {
            get => _buttonColor;
            set
            {
                _buttonColor = value;
                Invalidate();
            }
        }

        public Color OnHoverButtonColor
        {
            get => _onHoverButtonColor;
            set
            {
                _onHoverButtonColor = value;
                Invalidate();
            }
        }

        public Color TextColor
        {
            get => _textColor;
            set
            {
                _textColor = value;
                Invalidate();
            }
        }

        public Color OnHoverTextColor
        {
            get => _onHoverTextColor;
            set
            {
                _onHoverTextColor = value;
                Invalidate();
            }
        }
    }
}

просто создай скрипт cs и вставь из двух
и нажми ctrl+shift+b или build (сборка) -> Build Solution(собрать решение)
2 вариант
просто скачать кряк bunifu или guna 2 чтоб не мучаться с другими компонентами

у меня есть guna

вроде ты не поставил namespace

public class RoundButton : Control
{
    private int _cornerRadius = 50;
    public int CornerRadius
    {
        get { return _cornerRadius; }
        set { _cornerRadius = value; this.Invalidate(); }
    }

    private SmoothingMode _smoothingMode = SmoothingMode.AntiAlias;
    public SmoothingMode SmoothingMode
    {
        get { return _smoothingMode; }
        set { _smoothingMode = value; this.Invalidate(); }
    }

    GraphicsPath GetRoundPath(RectangleF Rect, int radius)
    {
        float r2 = radius / 2f;
        GraphicsPath GraphPath = new GraphicsPath();

        GraphPath.AddArc(Rect.X, Rect.Y, radius, radius, 180, 90);
        GraphPath.AddLine(Rect.X + r2, Rect.Y, Rect.Width - r2, Rect.Y);
        GraphPath.AddArc(Rect.X + Rect.Width - radius, Rect.Y, radius, radius, 270, 90);
        GraphPath.AddLine(Rect.Width, Rect.Y + r2, Rect.Width, Rect.Height - r2);
        GraphPath.AddArc(Rect.X + Rect.Width - radius,
                            Rect.Y + Rect.Height - radius, radius, radius, 0, 90);
        GraphPath.AddLine(Rect.Width - r2, Rect.Height, Rect.X + r2, Rect.Height);
        GraphPath.AddArc(Rect.X, Rect.Y + Rect.Height - radius, radius, radius, 90, 90);
        GraphPath.AddLine(Rect.X, Rect.Height - r2, Rect.X, Rect.Y + r2);

        GraphPath.CloseFigure();
        return GraphPath;
    }

    protected override void OnPaint(PaintEventArgs e)
    {
        base.OnPaint(e);
        e.Graphics.SmoothingMode = _smoothingMode;

        RectangleF Rect = new RectangleF(0, 0, this.Width, this.Height);
        GraphicsPath GraphPath = GetRoundPath(Rect, _cornerRadius);

        this.Region = new Region(GraphPath);
        using (Pen pen = new Pen(Color.Lime, 1.75f))
        {
            pen.Alignment = PenAlignment.Inset;
            e.Graphics.DrawPath(pen, GraphPath);
        }
    }
}

прост создать класс нада было и вставить уже этот код не удалять namespace