public partial class Form1 : Form
{
/*
* 界面上有一个button,和一个textbox，点击button1时，开始一个新线程，新线程中有一个方法，从0开始计数
* 并累加，且将每一个新的数字显示到textbox1中去
* */
public Form1()
{
InitializeComponent();
}
public delegate void SetTextDelegate(int text);
private void button1_Click(object sender, EventArgs e)
{
Thread th = new Thread(new ThreadStart(SetText));
th.Start();
}
private void SetText()
{
for (int a=0;a<1000000;a++)
{
if (textBox1.InvokeRequired)
{
textBox1.Invoke(new SetTextDelegate(SetTextDo), a);
}
}
}
public void SetTextDo(int i)
{
textBox1.Text = i.ToString();
}
}
#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.button1 = new System.Windows.Forms.Button();
this.textBox1 = new System.Windows.Forms.TextBox();
this.SuspendLayout();
//
// button1
//
this.button1.Location = new System.Drawing.Point(13, 23);
this.button1.Name = "button1";
this.button1.Size = new System.Drawing.Size(75, 23);
this.button1.TabIndex = 0;
this.button1.Text = "button1";
this.button1.UseVisualStyleBackColor = true;
this.button1.Click += new System.EventHandler(this.button1_Click);
//
// textBox1
//
this.textBox1.Location = new System.Drawing.Point(145, 23);
this.textBox1.Name = "textBox1";
this.textBox1.Size = new System.Drawing.Size(100, 21);
this.textBox1.TabIndex = 1;
//
// Form1
//
this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 12F);
this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
this.ClientSize = new System.Drawing.Size(284, 262);
this.Controls.Add(this.textBox1);
this.Controls.Add(this.button1);
this.Name = "Form1";
this.Text = "Form1";
this.ResumeLayout(false);
this.PerformLayout();
}