官网
前提
入行已经7,8年了，一直想做一套漂亮点的自定义控件，于是就有了本系列文章。
GitHub：https://github.com/kwwwvagaa/NetWinformControl
码云：https://gitee.com/kwwwvagaa/net_winform_custom_control.git
如果觉得写的还行，请点个 star 支持一下吧
欢迎前来交流探讨： 企鹅群568015492 
NuGet
Install-Package HZH_Controls
目录
https://www.cnblogs.com/bfyx/p/11364884.html
用处及效果
准备工作
这个是基于（四十一）c#Winform自定义控件-进度条 扩展的，如果你还没有了解，请先移步了解一下
开始
添加一个用户控件，命名UCProcessLineExt
属性
[Description("值变更事件"), Category("自定义")]
public event EventHandler ValueChanged;
[Description("当前属性"), Category("自定义")]
public int Value
{
set
{
ucProcessLine1.Value = value;
Refresh();
}
get
{
return ucProcessLine1.Value;
}
}
[Description("最大值"), Category("自定义")]
public int MaxValue
{
get { return ucProcessLine1.MaxValue; }
set
{
ucProcessLine1.MaxValue = value;
Refresh();
}
}
[Description("值进度条颜色"), Category("自定义")]
public Color ValueColor
{
get { return ucProcessLine1.ValueColor; }
set
{
ucProcessLine1.ValueColor = value;
Refresh();
}
}
[Description("值背景色"), Category("自定义")]
public Color ValueBGColor
{
get { return ucProcessLine1.ValueBGColor; }
set
{
ucProcessLine1.ValueBGColor = value;
Refresh();
}
}
[Description("边框颜色"), Category("自定义")]
public Color BorderColor
{
get { return ucProcessLine1.BorderColor; }
set
{
ucProcessLine1.BorderColor = value;
Refresh();
}
}
[Description("值字体"), Category("自定义")]
public override Font Font
{
get
{
return ucProcessLine1.Font;
}
set
{
ucProcessLine1.Font = value;
Refresh();
}
}
[Description("值块颜色"), Category("自定义")]
public override System.Drawing.Color ForeColor
{
get
{
return base.ForeColor;
}
set
{
base.ForeColor = value;
Refresh();
}
}
重绘
protected override void OnPaint(PaintEventArgs e)
{
base.OnPaint(e);
e.Graphics.SetGDIHigh();
float fltIndex = (float)this.ucProcessLine1.Value / (float)this.ucProcessLine1.MaxValue; int x = (int)(fltIndex * this.ucProcessLine1.Width + this.ucProcessLine1.Location.X - ) - ;
GraphicsPath path = new GraphicsPath();
Rectangle rect = new Rectangle(x, , , );
int cornerRadius = ;
path.AddArc(rect.X, rect.Y, cornerRadius * , cornerRadius * , , );
path.AddLine(rect.X + cornerRadius, rect.Y, rect.Right - cornerRadius * , rect.Y);
path.AddArc(rect.X + rect.Width - cornerRadius * , rect.Y, cornerRadius * , cornerRadius * , , );
path.AddLine(rect.Right, rect.Y + cornerRadius * , rect.Right, rect.Y + rect.Height - cornerRadius * );
path.AddArc(rect.X + rect.Width - cornerRadius * , rect.Y + rect.Height - cornerRadius * , cornerRadius * , cornerRadius * , , );
path.AddLine(rect.Right - cornerRadius * , rect.Bottom, rect.Right - cornerRadius * - , rect.Bottom);//下
path.AddLine(rect.Right - cornerRadius * - , , x + , ucProcessLine1.Location.Y);
path.AddLine(x + , ucProcessLine1.Location.Y, rect.X + cornerRadius * + , );
path.AddLine(rect.X + cornerRadius * + , , rect.X + cornerRadius * , rect.Bottom);//下
path.AddArc(rect.X, rect.Bottom - cornerRadius * , cornerRadius * , cornerRadius * , , );
path.AddLine(rect.X, rect.Bottom - cornerRadius * , rect.X, rect.Y + cornerRadius * );//上
path.CloseFigure(); e.Graphics.FillPath(new SolidBrush(ForeColor), path); string strValue = ((float)Value / (float)MaxValue).ToString("0%");
System.Drawing.SizeF sizeF = e.Graphics.MeasureString(strValue, Font);
e.Graphics.DrawString(strValue, Font, new SolidBrush(Color.White), new PointF(x + ( - sizeF.Width) / +, ( - sizeF.Height) / + ));
}
全部代码
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Drawing;
using System.Data;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.Drawing.Drawing2D; namespace HZH_Controls.Controls
{
public partial class UCProcessLineExt : UserControl
{
[Description("值变更事件"), Category("自定义")]
public event EventHandler ValueChanged; [Description("当前属性"), Category("自定义")]
public int Value
{
set
{
ucProcessLine1.Value = value;
Refresh();
}
get
{
return ucProcessLine1.Value;
}
} [Description("最大值"), Category("自定义")]
public int MaxValue
{
get { return ucProcessLine1.MaxValue; }
set
{
ucProcessLine1.MaxValue = value;
Refresh();
}
} [Description("值进度条颜色"), Category("自定义")]
public Color ValueColor
{
get { return ucProcessLine1.ValueColor; }
set
{
ucProcessLine1.ValueColor = value;
Refresh();
}
} [Description("值背景色"), Category("自定义")]
public Color ValueBGColor
{
get { return ucProcessLine1.ValueBGColor; }
set
{
ucProcessLine1.ValueBGColor = value;
Refresh();
}
} [Description("边框颜色"), Category("自定义")]
public Color BorderColor
{
get { return ucProcessLine1.BorderColor; }
set
{
ucProcessLine1.BorderColor = value;
Refresh();
}
} [Description("值字体"), Category("自定义")]
public override Font Font
{
get
{
return ucProcessLine1.Font;
}
set
{
ucProcessLine1.Font = value;
Refresh();
}
} [Description("值块颜色"), Category("自定义")]
public override System.Drawing.Color ForeColor
{
get
{
return base.ForeColor;
}
set
{
base.ForeColor = value;
Refresh();
}
} public UCProcessLineExt()
{
InitializeComponent();
this.SetStyle(ControlStyles.AllPaintingInWmPaint, true);
this.SetStyle(ControlStyles.DoubleBuffer, true);
this.SetStyle(ControlStyles.ResizeRedraw, true);
this.SetStyle(ControlStyles.Selectable, true);
this.SetStyle(ControlStyles.SupportsTransparentBackColor, true);
this.SetStyle(ControlStyles.UserPaint, true);
ucProcessLine1.ValueChanged += ucProcessLine1_ValueChanged;
} void ucProcessLine1_ValueChanged(object sender, EventArgs e)
{
if (ValueChanged != null)
{
ValueChanged(this, e);
}
} protected override void OnPaint(PaintEventArgs e)
{
base.OnPaint(e);
e.Graphics.SetGDIHigh();
float fltIndex = (float)this.ucProcessLine1.Value / (float)this.ucProcessLine1.MaxValue; int x = (int)(fltIndex * this.ucProcessLine1.Width + this.ucProcessLine1.Location.X - ) - ;
GraphicsPath path = new GraphicsPath();
Rectangle rect = new Rectangle(x, , , );
int cornerRadius = ;
path.AddArc(rect.X, rect.Y, cornerRadius * , cornerRadius * , , );
path.AddLine(rect.X + cornerRadius, rect.Y, rect.Right - cornerRadius * , rect.Y);
path.AddArc(rect.X + rect.Width - cornerRadius * , rect.Y, cornerRadius * , cornerRadius * , , );
path.AddLine(rect.Right, rect.Y + cornerRadius * , rect.Right, rect.Y + rect.Height - cornerRadius * );
path.AddArc(rect.X + rect.Width - cornerRadius * , rect.Y + rect.Height - cornerRadius * , cornerRadius * , cornerRadius * , , );
path.AddLine(rect.Right - cornerRadius * , rect.Bottom, rect.Right - cornerRadius * - , rect.Bottom);//下
path.AddLine(rect.Right - cornerRadius * - , , x + , ucProcessLine1.Location.Y);
path.AddLine(x + , ucProcessLine1.Location.Y, rect.X + cornerRadius * + , );
path.AddLine(rect.X + cornerRadius * + , , rect.X + cornerRadius * , rect.Bottom);//下
path.AddArc(rect.X, rect.Bottom - cornerRadius * , cornerRadius * , cornerRadius * , , );
path.AddLine(rect.X, rect.Bottom - cornerRadius * , rect.X, rect.Y + cornerRadius * );//上
path.CloseFigure(); e.Graphics.FillPath(new SolidBrush(ForeColor), path); string strValue = ((float)Value / (float)MaxValue).ToString("0%");
System.Drawing.SizeF sizeF = e.Graphics.MeasureString(strValue, Font);
e.Graphics.DrawString(strValue, Font, new SolidBrush(Color.White), new PointF(x + ( - sizeF.Width) / +, ( - sizeF.Height) / + ));
}
}
}
namespace HZH_Controls.Controls
{
partial class UCProcessLineExt
{
/// <summary>
/// 必需的设计器变量。
/// </summary>
private System.ComponentModel.IContainer components = null; /// <summary>
/// 清理所有正在使用的资源。
/// </summary>
/// <param name="disposing">如果应释放托管资源，为 true；否则为 false。</param>
protected override void Dispose(bool disposing)
{
if (disposing && (components != null))
{
components.Dispose();
}
base.Dispose(disposing);
} #region 组件设计器生成的代码 /// <summary>
/// 设计器支持所需的方法 - 不要
/// 使用代码编辑器修改此方法的内容。
/// </summary>
private void InitializeComponent()
{
this.ucProcessLine1 = new HZH_Controls.Controls.UCProcessLine();
this.SuspendLayout();
//
// ucProcessLine1
//
this.ucProcessLine1.Anchor = ((System.Windows.Forms.AnchorStyles)((((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Bottom)
| System.Windows.Forms.AnchorStyles.Left)
| System.Windows.Forms.AnchorStyles.Right)));
this.ucProcessLine1.BorderColor = System.Drawing.Color.FromArgb(((int)(((byte)()))), ((int)(((byte)()))), ((int)(((byte)()))));
this.ucProcessLine1.Font = new System.Drawing.Font("Arial Unicode MS", 10F);
this.ucProcessLine1.ForeColor = System.Drawing.Color.FromArgb(((int)(((byte)()))), ((int)(((byte)()))), ((int)(((byte)()))));
this.ucProcessLine1.Location = new System.Drawing.Point(, );
this.ucProcessLine1.MaxValue = ;
this.ucProcessLine1.Name = "ucProcessLine1";
this.ucProcessLine1.Size = new System.Drawing.Size(, );
this.ucProcessLine1.TabIndex = ;
this.ucProcessLine1.Text = "ucProcessLine1";
this.ucProcessLine1.Value = ;
this.ucProcessLine1.ValueBGColor = System.Drawing.Color.White;
this.ucProcessLine1.ValueColor = System.Drawing.Color.FromArgb(((int)(((byte)()))), ((int)(((byte)()))), ((int)(((byte)()))));
this.ucProcessLine1.ValueTextType = HZH_Controls.Controls.ValueTextType.None;
//
// UCProcessLineExt
//
this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.None;
this.BackColor = System.Drawing.Color.Transparent;
this.Controls.Add(this.ucProcessLine1);
this.Name = "UCProcessLineExt";
this.Size = new System.Drawing.Size(, );
this.ResumeLayout(false); } #endregion private UCProcessLine ucProcessLine1;
}
}
最后的话
如果你喜欢的话，请到 https://gitee.com/kwwwvagaa/net_winform_custom_control 点个星星吧