窗体上有一textBox,和一button控件,当点击button时,系统执行某一耗时任务,这里我用
sleep(5000)代替,在这行这个5秒钟的任务期间,textBox 显示Processing......这样的
动态提示,代码如下,但我执行结果是在这5秒过程中没有显示Processing....,最后直接
显示Complete,请帮忙看看那得问题
using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using System.Data;
using System.Threading;namespace test2
{
/// <summary>
/// Form1 的摘要说明。
/// </summary>
public class Form1 : System.Windows.Forms.Form
{
private System.Windows.Forms.TextBox textBox1;
private System.Windows.Forms.Button button1;
/// <summary>
/// 必需的设计器变量。
/// </summary>
private System.ComponentModel.Container components = null; public Form1()
{
//
// Windows 窗体设计器支持所必需的
//
InitializeComponent(); //
// TODO: 在 InitializeComponent 调用后添加任何构造函数代码
//
} /// <summary>
/// 清理所有正在使用的资源。
/// </summary>
protected override void Dispose( bool disposing )
{
if( disposing )
{
if (components != null)
{
components.Dispose();
}
}
base.Dispose( disposing );
} #region Windows 窗体设计器生成的代码
/// <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.textBox1 = new System.Windows.Forms.TextBox();
this.button1 = new System.Windows.Forms.Button();
this.SuspendLayout();
//
// textBox1
//
this.textBox1.Location = new System.Drawing.Point(60, 52);
this.textBox1.Name = "textBox1";
this.textBox1.Size = new System.Drawing.Size(164, 21);
this.textBox1.TabIndex = 0;
this.textBox1.Text = "textBox1";
//
// button1
//
this.button1.Location = new System.Drawing.Point(104, 164);
this.button1.Name = "button1";
this.button1.TabIndex = 1;
this.button1.Text = "button1";
this.button1.Click += new System.EventHandler(this.button1_Click);
//
// Form1
//
this.AutoScaleBaseSize = new System.Drawing.Size(6, 14);
this.ClientSize = new System.Drawing.Size(292, 273);
this.Controls.Add(this.button1);
this.Controls.Add(this.textBox1);
this.Name = "Form1";
this.Text = "Form1";
this.ResumeLayout(false); }
#endregion /// <summary>
/// 应用程序的主入口点。
/// </summary>
[STAThread]
static void Main()
{
Application.Run(new Form1());
} private void button1_Click(object sender, System.EventArgs e)
{
textBox1.Text ="Processing";
Thread thread = new Thread (new ThreadStart (ThreadFunc));
thread.Start();
System.Threading.Thread.Sleep(5000);
thread.Abort();
textBox1.Text ="Complete";
} private void ThreadFunc()
{
bool bflag=true;
while (bflag)
{
if (textBox1.Text.IndexOf("Processing")!=-1)
{
if (textBox1.Text !="Processing......")
{
textBox1.Text+=".";
}
else
{
textBox1.Text ="Processing";
}
}
else
{
bflag=false;
}
}
}
}
}
sleep(5000)代替,在这行这个5秒钟的任务期间,textBox 显示Processing......这样的
动态提示,代码如下,但我执行结果是在这5秒过程中没有显示Processing....,最后直接
显示Complete,请帮忙看看那得问题
using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using System.Data;
using System.Threading;namespace test2
{
/// <summary>
/// Form1 的摘要说明。
/// </summary>
public class Form1 : System.Windows.Forms.Form
{
private System.Windows.Forms.TextBox textBox1;
private System.Windows.Forms.Button button1;
/// <summary>
/// 必需的设计器变量。
/// </summary>
private System.ComponentModel.Container components = null; public Form1()
{
//
// Windows 窗体设计器支持所必需的
//
InitializeComponent(); //
// TODO: 在 InitializeComponent 调用后添加任何构造函数代码
//
} /// <summary>
/// 清理所有正在使用的资源。
/// </summary>
protected override void Dispose( bool disposing )
{
if( disposing )
{
if (components != null)
{
components.Dispose();
}
}
base.Dispose( disposing );
} #region Windows 窗体设计器生成的代码
/// <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.textBox1 = new System.Windows.Forms.TextBox();
this.button1 = new System.Windows.Forms.Button();
this.SuspendLayout();
//
// textBox1
//
this.textBox1.Location = new System.Drawing.Point(60, 52);
this.textBox1.Name = "textBox1";
this.textBox1.Size = new System.Drawing.Size(164, 21);
this.textBox1.TabIndex = 0;
this.textBox1.Text = "textBox1";
//
// button1
//
this.button1.Location = new System.Drawing.Point(104, 164);
this.button1.Name = "button1";
this.button1.TabIndex = 1;
this.button1.Text = "button1";
this.button1.Click += new System.EventHandler(this.button1_Click);
//
// Form1
//
this.AutoScaleBaseSize = new System.Drawing.Size(6, 14);
this.ClientSize = new System.Drawing.Size(292, 273);
this.Controls.Add(this.button1);
this.Controls.Add(this.textBox1);
this.Name = "Form1";
this.Text = "Form1";
this.ResumeLayout(false); }
#endregion /// <summary>
/// 应用程序的主入口点。
/// </summary>
[STAThread]
static void Main()
{
Application.Run(new Form1());
} private void button1_Click(object sender, System.EventArgs e)
{
textBox1.Text ="Processing";
Thread thread = new Thread (new ThreadStart (ThreadFunc));
thread.Start();
System.Threading.Thread.Sleep(5000);
thread.Abort();
textBox1.Text ="Complete";
} private void ThreadFunc()
{
bool bflag=true;
while (bflag)
{
if (textBox1.Text.IndexOf("Processing")!=-1)
{
if (textBox1.Text !="Processing......")
{
textBox1.Text+=".";
}
else
{
textBox1.Text ="Processing";
}
}
else
{
bflag=false;
}
}
}
}
}
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