winForm 实现加栽窗体显示进度条或者显示"数据加栽中....."

Question

我知道这个控件可以实现，但是我想看看具体的  代码

Answer 1

using System;
using System.Collections.Generic;
using System.Text;
using System.Windows.Forms;
using System.Threading;
namespace WindowsApplication1
{
    public class Form1 : Form
    {
        private System.ComponentModel.BackgroundWorker backgroundWorker1;
        private StatusStrip statusStrip1;
        private ToolStripProgressBar toolStripProgressBar1;
        private ToolStripStatusLabel toolStripStatusLabel1;
        private Button button2;
        private Button button1;        public Form1() : base() { InitializeComponent(); }        private void InitializeComponent()
        {
            this.button1 = new System.Windows.Forms.Button();
            this.backgroundWorker1 = new System.ComponentModel.BackgroundWorker();
            this.statusStrip1 = new System.Windows.Forms.StatusStrip();
            this.toolStripProgressBar1 = new System.Windows.Forms.ToolStripProgressBar();
            this.toolStripStatusLabel1 = new System.Windows.Forms.ToolStripStatusLabel();
            this.button2 = new System.Windows.Forms.Button();
            this.statusStrip1.SuspendLayout();
            this.SuspendLayout();
            // 
            // button1
            // 
            this.button1.Location = new System.Drawing.Point(12, 12);
            this.button1.Name = "button1";
            this.button1.Size = new System.Drawing.Size(75, 23);
            this.button1.TabIndex = 0;
            this.button1.Text = "Load";
            this.button1.UseVisualStyleBackColor = true;
            this.button1.Click += new System.EventHandler(this.button1_Click);
            // 
            // backgroundWorker1
            // 
            this.backgroundWorker1.WorkerReportsProgress = true;
            this.backgroundWorker1.WorkerSupportsCancellation = true;
            this.backgroundWorker1.DoWork += new System.ComponentModel.DoWorkEventHandler(this.backgroundWorker1_DoWork);
            this.backgroundWorker1.RunWorkerCompleted += new System.ComponentModel.RunWorkerCompletedEventHandler(this.backgroundWorker1_RunWorkerCompleted);
            this.backgroundWorker1.ProgressChanged += new System.ComponentModel.ProgressChangedEventHandler(this.backgroundWorker1_ProgressChanged);
            // 
            // statusStrip1
            // 
            this.statusStrip1.Items.AddRange(new System.Windows.Forms.ToolStripItem[] {
            this.toolStripProgressBar1,
            this.toolStripStatusLabel1});
            this.statusStrip1.Location = new System.Drawing.Point(0, 244);
            this.statusStrip1.Name = "statusStrip1";
            this.statusStrip1.Size = new System.Drawing.Size(292, 22);
            this.statusStrip1.TabIndex = 1;
            this.statusStrip1.Text = "statusStrip1";
            // 
            // toolStripProgressBar1
            // 
            this.toolStripProgressBar1.Name = "toolStripProgressBar1";
            this.toolStripProgressBar1.Size = new System.Drawing.Size(100, 16);
            // 
            // toolStripStatusLabel1
            // 
            this.toolStripStatusLabel1.Name = "toolStripStatusLabel1";
            this.toolStripStatusLabel1.Size = new System.Drawing.Size(175, 17);
            this.toolStripStatusLabel1.Spring = true;
            // 
            // button2
            // 
            this.button2.Location = new System.Drawing.Point(134, 12);
            this.button2.Name = "button2";
            this.button2.Size = new System.Drawing.Size(75, 23);
            this.button2.TabIndex = 2;
            this.button2.Text = "Cancel";
            this.button2.UseVisualStyleBackColor = true;
            this.button2.Click += new System.EventHandler(this.button2_Click);
            // 
            // Form1
            // 
            this.ClientSize = new System.Drawing.Size(292, 266);
            this.Controls.Add(this.button2);
            this.Controls.Add(this.statusStrip1);
            this.Controls.Add(this.button1);
            this.Name = "Form1";
            this.statusStrip1.ResumeLayout(false);
            this.statusStrip1.PerformLayout();
            this.ResumeLayout(false);
            this.PerformLayout();        }        private void backgroundWorker1_DoWork(object sender, System.ComponentModel.DoWorkEventArgs e)
        {
            toolStripStatusLabel1.Text = "Please wait ............";
            for (int index = 1; index < 100; index++)
            {
                Thread.Sleep(100);                
                if (backgroundWorker1.CancellationPending)
                {
                    e.Cancel = true;
                    break;
                }
                backgroundWorker1.ReportProgress(index);
            }
        }        private void backgroundWorker1_ProgressChanged(object sender, System.ComponentModel.ProgressChangedEventArgs e)
        {
            try
            {
                toolStripProgressBar1.Value = e.ProgressPercentage;
            }
            catch (Exception ) {  }
        }        private void backgroundWorker1_RunWorkerCompleted(object sender, System.ComponentModel.RunWorkerCompletedEventArgs e)
        {
            toolStripProgressBar1.Value = 0;
            toolStripStatusLabel1.Text = string.Empty;
        }        private void button1_Click(object sender, EventArgs e)
        {
            backgroundWorker1.RunWorkerAsync();
        }        private void button2_Click(object sender, EventArgs e)
        {
            if (backgroundWorker1.IsBusy) //check backgroundWorker state
            {
                backgroundWorker1.CancelAsync();
            }
        }
    }
}