using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Drawing;
using System.Data;
using System.Text;
using System.Windows.Forms;
using System.Drawing.Drawing2D;
namespace WindowsApplication1
{
public partial class GroupBox : UserControl
{
public GroupBox()
{
InitializeComponent();
InitializeStyles();
InitializeGroupBox();
}
/// <summary>This method will initialize the controls custom styles.</summary>
private void InitializeStyles()
{
//Set the control styles----------------------------------
this.SetStyle(ControlStyles.DoubleBuffer, true);
this.SetStyle(ControlStyles.AllPaintingInWmPaint, true);
this.SetStyle(ControlStyles.UserPaint, true);
this.SetStyle(ControlStyles.SupportsTransparentBackColor, true);
//--------------------------------------------------------
}
/// <summary>This method will initialize the GroupBox control.</summary>
private void InitializeGroupBox()
{
components = new System.ComponentModel.Container();
this.Resize += new EventHandler(GroupBox_Resize);
this.DockPadding.All = 20;
this.Name = "GroupBox";
this.Size = new System.Drawing.Size(368, 288);
}
protected override void OnPaint(PaintEventArgs e)
{
//PaintBack(e.Graphics);
Test(e.Graphics);
}
public void Test(Graphics g)
{
g.SmoothingMode = SmoothingMode.AntiAlias;
int ArcX2 = (this.ShadowControl) ? (this.Width - (15)) - this.ShadowThickness : this.Width - (15);
int ArcY2 = (this.ShadowControl) ? (this.Height - (15)) - this.ShadowThickness : this.Height - (15);
System.Drawing.Drawing2D.GraphicsPath path = new System.Drawing.Drawing2D.GraphicsPath();
System.Drawing.Brush BorderBrush = new SolidBrush(Color.FromArgb(224, 224, 224));
System.Drawing.Pen BorderPen = new Pen(BorderBrush, 1);
// System.Drawing.Drawing2D.LinearGradientBrush BackgroundGradientBrush = null;
// System.Drawing.Brush BackgroundBrush = new SolidBrush(this.BackgroundColor);
// System.Drawing.SolidBrush ShadowBrush = null;
// System.Drawing.Drawing2D.GraphicsPath ShadowPath = null;
//Create Rounded Rectangle Path------
path.AddArc(0, 10, 14, 14, 180, GroupBoxConstants.SweepAngle); // Top Left
path.AddArc(ArcX2, 10, 14, 14, 270, GroupBoxConstants.SweepAngle); //Top Right
path.AddArc(ArcX2, ArcY2, 14, 14, 360, GroupBoxConstants.SweepAngle); //Bottom Right
path.AddArc(0, ArcY2, 14, 14, 90, GroupBoxConstants.SweepAngle); //Bottom Left
path.CloseAllFigures();
//-----------------------------------
Check if Gradient Mode is enabled--
//if (this.BackgroundGradientMode == GroupBoxGradientMode.None)
//{
// //Paint Rounded Rectangle------------
// g.FillPath(BackgroundBrush, path);
// //-----------------------------------
//}
//else
//{
// BackgroundGradientBrush = new LinearGradientBrush(new Rectangle(0, 0, this.Width, this.Height), this.BackgroundColor, this.BackgroundGradientColor, (LinearGradientMode)this.BackgroundGradientMode);
// //Paint Rounded Rectangle------------
// g.FillPath(BackgroundGradientBrush, path);
// //-----------------------------------
//}
-----------------------------------
//Paint Borded-----------------------
g.DrawPath(BorderPen, path);
//-----------------------------------
}
private int V_RoundCorners = 10;
/// <summary>This feature will round the corners of the control.</summary>
[Category("Appearance"), Description("This feature will round the corners of the control.")]
public int RoundCorners
{
get { return V_RoundCorners; }
set
{
if (value > 25)
{
V_RoundCorners = 25;
}
else
{
if (value < 1) { V_RoundCorners = 1; }
else { V_RoundCorners = value; }
}
this.Refresh();
}
}
/// <summary>This feature will allow you to turn on control shadowing.</summary>
[Category("Appearance"), Description("This feature will allow you to turn on control shadowing.")]
public bool ShadowControl { get { return V_ShadowControl; } set { V_ShadowControl = value; this.Refresh(); } }
private bool V_ShadowControl = false;
/// <summary>This feature will change the size of the shadow border.</summary>
[Category("Appearance"), Description("This feature will change the size of the shadow border.")]
public int ShadowThickness
{
get { return V_ShadowThickness; }
set
{
if (value > 10)
{
V_ShadowThickness = 10;
}
else
{
if (value < 1) { V_ShadowThickness = 1; }
else { V_ShadowThickness = value; }
}
this.Refresh();
}
}
private int V_ShadowThickness = 3;
private System.Drawing.Color V_BorderColor = Color.Black;
/// <summary>This feature will change the group control color. This color can also be used in combination with BackgroundGradientColor for a gradient paint.</summary>
[Category("Appearance"), Description("This feature will change the group control color. This color can also be used in combination with BackgroundGradientColor for a gradient paint.")]
public System.Drawing.Color BackgroundColor { get { return V_BackgroundColor; } set { V_BackgroundColor = value; this.Refresh(); } }
private System.Drawing.Color V_BackgroundColor = Color.White;
/// <summary>This class holds all GroupBox constants.</summary>
public class GroupBoxConstants
{
#region Constants
/// <summary>The sweep angle of the arc.</summary>
public const int SweepAngle = 90;
/// <summary>The minimum control height.</summary>
public const int MinControlHeight = 32;
/// <summary>The minimum control width.</summary>
public const int MinControlWidth = 96;
#endregion
}
/// <summary>This feature turns on background gradient painting.</summary>
[Category("Appearance"), Description("This feature turns on background gradient painting.")]
public GroupBoxGradientMode BackgroundGradientMode { get { return V_BackgroundGradientMode; } set { V_BackgroundGradientMode = value; this.Refresh(); } }
private GroupBoxGradientMode V_BackgroundGradientMode = GroupBoxGradientMode.None;
/// <summary>A special gradient enumeration.</summary>
public enum GroupBoxGradientMode
{
/// <summary>Specifies no gradient mode.</summary>
None = 4,
/// <summary>Specifies a gradient from upper right to lower left.</summary>
BackwardDiagonal = 3,
/// <summary>Specifies a gradient from upper left to lower right.</summary>
ForwardDiagonal = 2,
/// <summary>Specifies a gradient from left to right.</summary>
Horizontal = 0,
/// <summary>Specifies a gradient from top to bottom.</summary>
Vertical = 1
}
/// <summary>This feature will allow you to change the color of the control's border.</summary>
[Category("Appearance"), Description("This feature will allow you to change the color of the control's border.")]
public System.Drawing.Color BorderColor { get { return V_BorderColor; } set { V_BorderColor = value; this.Refresh(); } }
/// <summary>This feature will allow you to set the control's border size.</summary>
[Category("Appearance"), Description("This feature will allow you to set the control's border size.")]
public float BorderThickness
{
get { return V_BorderThickness; }
set
{
if (value > 3)
{
V_BorderThickness = 3;
}
else
{
if (value < 1) { V_BorderThickness = 1; }
else { V_BorderThickness = value; }
}
this.Refresh();
}
}
private float V_BorderThickness = 1;
/// <summary>This feature will change the control's shadow color.</summary>
[Category("Appearance"), Description("This feature will change the control's shadow color.")]
public System.Drawing.Color ShadowColor { get { return V_ShadowColor; } set { V_ShadowColor = value; this.Refresh(); } }
private System.Drawing.Color V_ShadowColor = Color.DarkGray;
/// <summary>This feature can be used in combination with BackgroundColor to create a gradient background.</summary>
[Category("Appearance"), Description("This feature can be used in combination with BackgroundColor to create a gradient background.")]
public System.Drawing.Color BackgroundGradientColor { get { return V_BackgroundGradientColor; } set { V_BackgroundGradientColor = value; this.Refresh(); } }
private System.Drawing.Color V_BackgroundGradientColor = Color.White;
/// <summary>This method will paint the control.</summary>
/// <param name="g">The paint event graphics object.</param>
private void PaintBack(System.Drawing.Graphics g)
{
//Set Graphics smoothing mode to Anit-Alias--
g.SmoothingMode = SmoothingMode.AntiAlias;
//-------------------------------------------
//Declare Variables------------------
int ArcWidth = this.RoundCorners * 2;
int ArcHeight = this.RoundCorners * 2;
int ArcX1 = 0;
int ArcX2 = (this.ShadowControl) ? (this.Width - (ArcWidth + 1)) - this.ShadowThickness : this.Width - (ArcWidth + 1);
int ArcY1 = 10;
int ArcY2 = (this.ShadowControl) ? (this.Height - (ArcHeight + 1)) - this.ShadowThickness : this.Height - (ArcHeight + 1);
System.Drawing.Drawing2D.GraphicsPath path = new System.Drawing.Drawing2D.GraphicsPath();
System.Drawing.Brush BorderBrush = new SolidBrush(this.BorderColor);
System.Drawing.Pen BorderPen = new Pen(BorderBrush, this.BorderThickness);
System.Drawing.Drawing2D.LinearGradientBrush BackgroundGradientBrush = null;
System.Drawing.Brush BackgroundBrush = new SolidBrush(this.BackgroundColor);
System.Drawing.SolidBrush ShadowBrush = null;
System.Drawing.Drawing2D.GraphicsPath ShadowPath = null;
//-----------------------------------
//Check if shadow is needed----------
if (this.ShadowControl)
{
ShadowBrush = new SolidBrush(this.ShadowColor);
ShadowPath = new System.Drawing.Drawing2D.GraphicsPath();
ShadowPath.AddArc(ArcX1 + this.ShadowThickness, ArcY1 + this.ShadowThickness, ArcWidth, ArcHeight, 180, GroupBoxConstants.SweepAngle); // Top Left
ShadowPath.AddArc(ArcX2 + this.ShadowThickness, ArcY1 + this.ShadowThickness, ArcWidth, ArcHeight, 270, GroupBoxConstants.SweepAngle); //Top Right
ShadowPath.AddArc(ArcX2 + this.ShadowThickness, ArcY2 + this.ShadowThickness, ArcWidth, ArcHeight, 360, GroupBoxConstants.SweepAngle); //Bottom Right
ShadowPath.AddArc(ArcX1 + this.ShadowThickness, ArcY2 + this.ShadowThickness, ArcWidth, ArcHeight, 90, GroupBoxConstants.SweepAngle); //Bottom Left
ShadowPath.CloseAllFigures();
//Paint Rounded Rectangle------------
g.FillPath(ShadowBrush, ShadowPath);
//-----------------------------------
}
//-----------------------------------
//Create Rounded Rectangle Path------
path.AddArc(ArcX1, ArcY1, ArcWidth, ArcHeight, 180, GroupBoxConstants.SweepAngle); // Top Left
path.AddArc(ArcX2, ArcY1, ArcWidth, ArcHeight, 270, GroupBoxConstants.SweepAngle); //Top Right
path.AddArc(ArcX2, ArcY2, ArcWidth, ArcHeight, 360, GroupBoxConstants.SweepAngle); //Bottom Right
path.AddArc(ArcX1, ArcY2, ArcWidth, ArcHeight, 90, GroupBoxConstants.SweepAngle); //Bottom Left
path.CloseAllFigures();
//-----------------------------------
//Check if Gradient Mode is enabled--
if (this.BackgroundGradientMode == GroupBoxGradientMode.None)
{
//Paint Rounded Rectangle------------
g.FillPath(BackgroundBrush, path);
//-----------------------------------
}
else
{
BackgroundGradientBrush = new LinearGradientBrush(new Rectangle(0, 0, this.Width, this.Height), this.BackgroundColor, this.BackgroundGradientColor, (LinearGradientMode)this.BackgroundGradientMode);
//Paint Rounded Rectangle------------
g.FillPath(BackgroundGradientBrush, path);
//-----------------------------------
}
//-----------------------------------
//Paint Borded-----------------------
g.DrawPath(BorderPen, path);
//-----------------------------------
//Destroy Graphic Objects------------
if (path != null) { path.Dispose(); }
if (BorderBrush != null) { BorderBrush.Dispose(); }
if (BorderPen != null) { BorderPen.Dispose(); }
if (BackgroundGradientBrush != null) { BackgroundGradientBrush.Dispose(); }
if (BackgroundBrush != null) { BackgroundBrush.Dispose(); }
if (ShadowBrush != null) { ShadowBrush.Dispose(); }
if (ShadowPath != null) { ShadowPath.Dispose(); }
//-----------------------------------
}
private void GroupBox_Resize(object sender, EventArgs e)
{
this.Invalidate(false);
}
}
}
編譯後在工具箱生成控件直接拖到窗體上使用就行。
忘了修改哪裡的代碼了。應該是codeproject上面的、
另外一種：
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Drawing;
using System.Data;
using System.Text;
using System.Windows.Forms;
using System.Drawing.Drawing2D;
namespace WindowsApplication1
{
public partial class UserControl2 : UserControl
{
public UserControl2()
{
InitializeComponent();
InitializeStyles();
}
/// <summary>This method will initialize the controls custom styles.</summary>
private void InitializeStyles()
{
//Set the control styles----------------------------------
this.SetStyle(ControlStyles.DoubleBuffer, true);
this.SetStyle(ControlStyles.AllPaintingInWmPaint, true);
this.SetStyle(ControlStyles.UserPaint, true);
this.SetStyle(ControlStyles.SupportsTransparentBackColor, true);
//--------------------------------------------------------
}
protected override void OnPaint(PaintEventArgs e)
{
//PaintBack(e.Graphics);
Test(e.Graphics);
}
public void Test(Graphics g)
{
g.SmoothingMode = SmoothingMode.AntiAlias;
System.Drawing.Drawing2D.GraphicsPath path = new System.Drawing.Drawing2D.GraphicsPath();
System.Drawing.Brush BorderBrush = new SolidBrush(Color.FromArgb(224, 224, 224));
System.Drawing.Pen BorderPen = new Pen(BorderBrush, 1);
//Create Rounded Rectangle Path------
path.AddArc(0, 10, 14, 14, 180, 90); // Top Left
path.AddArc(this.Width - (15), 10, 14, 14, 270, 90); //Top Right
path.AddArc(this.Width - (15), this.Height - (15), 14, 14, 360, 90); //Bottom Right
path.AddArc(0, this.Height - (15), 14, 14, 90, 90); //Bottom Left
path.CloseAllFigures();
//-----------------------------------
//Paint Borded-----------------------
g.DrawPath(BorderPen, path);
//-----------------------------------
//Destroy Graphic Objects------------
if (path != null) { path.Dispose(); }
if (BorderBrush != null) { BorderBrush.Dispose(); }
if (BorderPen != null) { BorderPen.Dispose(); }
//-----------------------------------
}
private void UserControl2_Resize(object sender, EventArgs e)
{
this.Invalidate(false);
}
}
}
![在DOS下運作不了ipconfig指令[圖]](data:image/gif;base64,R0lGODlhAQABAIAAAP///wAAACwAAAAAAQABAAACAkQBADs=)