很多时候进度条都是横向的，但是表示一些数量时，柱状体的进度条好一些，本文将介绍一下竖版的自定义进度条制作。
先说一下自定义进度条的原理。初始化一个30，150大小的自定义控件。然后赋值一个底色，然后对高度值自增，通过自增的高度值来画一个矩形，这个矩形颜色用其它颜色表示，这个不断变小的矩形，就会露出下边底色的矩形。给人的感觉就是进度条再走。不多说了，上代码，已测试过。
按暂停间效果。
自定义控件:UserControls.cs
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Drawing;
using System.Data;
using System.Text;
using System.Windows.Forms;
namespace UserProgressBar
{
public partial class UserProgressBar : UserControl
{
private int min;//最小值
private int max;//最大值
private int val;//进度值
private Color BarColor;//初始化颜色
public UserProgressBar(int min, int max, int val, Color BackColor)
{
InitializeComponent();
this.Min = min;
this.Max = max;
this.Val = val;
this.ProgressBarColor = BackColor;
}
public Color ProgressBarColor
{
get
{
return BarColor;
}
set
{
BarColor = value;
}
}
public int Min
{
get
{
return min;
}
set
{
min = value;
this.Invalidate();
}
}
public int Max
{
get
{
return max;
}
set
{
max = value;
this.Invalidate();
}
}
public int Val
{
get
{
return val;
}
set
{
int oldValue = val;
if(value < min)
{
val = min;
}
else
{
val = value;
}
float percent;
Rectangle newValueRect = this.ClientRectangle;
Rectangle oldValueRect = this.ClientRectangle;
percent = 1.0f - (float)(val - min) / (float)(max - min);
newValueRect.Height = (int)((float)newValueRect.Height * percent);
percent = 1.0f - (float)(oldValue - min) / (float)(max - min);
oldValueRect.Height = (int)((float)oldValueRect.Height * percent);
Rectangle updateRect = new Rectangle();
if (newValueRect.Height > oldValueRect.Height)
{
updateRect.Y = oldValueRect.Size.Height;
updateRect.Height = newValueRect.Height - oldValueRect.Height;
}
else
{
updateRect.Y = newValueRect.Size.Height;
updateRect.Height = oldValueRect.Height - newValueRect.Height;
}
updateRect.Width = this.Width;
this.Invalidate(updateRect);
}
}
protected override void OnPaint(PaintEventArgs e)
{
Graphics g = e.Graphics;
SolidBrush brush = new SolidBrush(BarColor);
float percent = 1.0f - (float)(val - min) / (float)(max - min);
Rectangle rect = this.ClientRectangle;
rect.Height = (int)((float)rect.Height * percent);
Console.WriteLine("高度:{0}", rect.Height);
g.FillRectangle(brush, rect);
brush.Dispose();
g.Dispose();
}
}
}
自定义控件UserControls.Designer.cs
namespace UserProgressBar
{
partial class UserProgressBar
{
/// <summary>
/// Required designer variable.
/// </summary>
private System.ComponentModel.IContainer components = null;
/// <summary>
/// Clean up any resources being used.
/// </summary>
/// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>
protected override void Dispose(bool disposing)
{
if (disposing && (components != null))
{
components.Dispose();
}
base.Dispose(disposing);
}
#region Component Designer generated code
/// <summary>
/// Required method for Designer support - do not modify
/// the contents of this method with the code editor.
/// </summary>
private void InitializeComponent()
{
components = new System.ComponentModel.Container();
this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 12F);
this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
this.Name = "UserProgressBar";
this.Size = new System.Drawing.Size(30, 150);
this.ResumeLayout(false);
}
#endregion
}
}
测试工程:Form1.cs 记得添加自定义控件引用，这里就不再说明了。
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using System.Runtime.InteropServices;
namespace TestProject
{
public partial class Form1 : Form
{
[DllImport("kernel32.dll")]
public static extern bool AllocConsole();
//free console
[DllImport("kernel32.dll")]
public static extern bool FreeConsole();
public Form1()
{
InitializeComponent();
AllocConsole();
Console.BackgroundColor = ConsoleColor.Black;
Console.ForegroundColor = ConsoleColor.Yellow;
}
private void timer1_Tick(object sender, EventArgs e)
{
if (this.userProgressBar1.Val >= 0)
{
this.userProgressBar1.Val++;
this.userProgressBar2.Val++;
}
else
{
this.timer1.Enabled = false;
}
}
private void button1_Click(object sender, EventArgs e)
{
this.userProgressBar1.Val = 0;
this.userProgressBar2.Val = 0;
this.timer1.Interval = 1;
this.timer1.Enabled = true;
}
private void button2_Click(object sender, EventArgs e)
{
if (this.button2.Text == "暂停")
{
this.button2.Text = "继续";
this.timer1.Enabled = false;
}
else
{
this.button2.Text = "暂停";
this.timer1.Enabled = true;
}
}
}
}
Form1.Designer.cs 两个按钮，两个自定义控件，一个Timer计时器控件。
namespace TestProject
{
partial class Form1
{
/// <summary>
/// Required designer variable.
/// </summary>
private System.ComponentModel.IContainer components = null;
/// <summary>
/// Clean up any resources being used.
/// </summary>
/// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>
protected override void Dispose(bool disposing)
{
if (disposing && (components != null))
{
components.Dispose();
}
base.Dispose(disposing);
}
#region Windows Form Designer generated code
/// <summary>
/// Required method for Designer support - do not modify
/// the contents of this method with the code editor.
/// </summary>
private void InitializeComponent()
{
this.components = new System.ComponentModel.Container();
this.timer1 = new System.Windows.Forms.Timer(this.components);
this.userProgressBar1 = new UserProgressBar.UserProgressBar(0, 200, 0, System.Drawing.Color.MediumSpringGreen);
this.userProgressBar2 = new UserProgressBar.UserProgressBar(0, 100, 0, System.Drawing.Color.MediumSpringGreen);
this.button1 = new System.Windows.Forms.Button();
this.button2 = new System.Windows.Forms.Button();
this.SuspendLayout();
//
// timer1
//
this.timer1.Tick += new System.EventHandler(this.timer1_Tick);
//
// button1
//
this.button1.Location = new System.Drawing.Point(61, 82);
this.button1.Name = "button1";
this.button1.Size = new System.Drawing.Size(75, 23);
this.button1.TabIndex = 1;
this.button1.Text = "开始";
this.button1.UseVisualStyleBackColor = true;
this.button1.Click += new System.EventHandler(this.button1_Click);
//
// userProgressBar1
//
this.userProgressBar1.BackColor = System.Drawing.Color.Red;
this.userProgressBar1.Location = new System.Drawing.Point(218, 37);
this.userProgressBar1.Name = "userProgressBar1";
this.userProgressBar1.ProgressBarColor = System.Drawing.Color.Blue;
this.userProgressBar1.Size = new System.Drawing.Size(30, 150);
this.userProgressBar1.TabIndex = 0;
this.userProgressBar1.Val = 0;
//
// userProgressBar2
//
this.userProgressBar2.BackColor = System.Drawing.Color.Red;
this.userProgressBar2.Location = new System.Drawing.Point(152, 39);
this.userProgressBar2.Name = "userProgressBar2";
this.userProgressBar2.ProgressBarColor = System.Drawing.Color.MediumSpringGreen;
this.userProgressBar2.Size = new System.Drawing.Size(30, 150);
this.userProgressBar2.TabIndex = 2;
this.userProgressBar2.Val = 0;
//
// button2
//
this.button2.Location = new System.Drawing.Point(61, 125);
this.button2.Name = "button2";
this.button2.Size = new System.Drawing.Size(75, 23);
this.button2.TabIndex = 3;
this.button2.Text = "暂停";
this.button2.UseVisualStyleBackColor = true;
this.button2.Click += new System.EventHandler(this.button2_Click);
//
// Form1
//
this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 12F);
this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
this.ClientSize = new System.Drawing.Size(284, 261);
this.Controls.Add(this.button2);
this.Controls.Add(this.userProgressBar2);
this.Controls.Add(this.button1);
this.Controls.Add(this.userProgressBar1);
this.Name = "Form1";
this.Text = "向上进度条演示";
this.ResumeLayout(false);
}
#endregion
private UserProgressBar.UserProgressBar userProgressBar1;
private System.Windows.Forms.Timer timer1;
private System.Windows.Forms.Button button1;
private UserProgressBar.UserProgressBar userProgressBar2;
private System.Windows.Forms.Button button2;
}
}