c# 控件,线程间操作(设置主窗体控件数据)
2011-09-30 17:21
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1、子线程设置主窗体控件的值,以TextBox为例
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using System.Threading;
namespace WindowsApplication1
{
public partial class Form1 : Form
{
private System.Windows.Forms.TextBox textBox1;
private System.Windows.Forms.Button button1;
public Form1()
{
InitializeComponent();
}
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(111, 44);
this.textBox1.Name = "textBox1";
this.textBox1.Size = new System.Drawing.Size(194, 21);
this.textBox1.TabIndex = 0;
//
// button1
//
this.button1.Location = new System.Drawing.Point(325, 34);
this.button1.Name = "button1";
this.button1.Size = new System.Drawing.Size(87, 30);
this.button1.TabIndex = 1;
this.button1.Text = "button1";
this.button1.UseVisualStyleBackColor = true;
this.button1.Click += new System.EventHandler(this.button1_Click);
//
// Form1
//
this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 12F);
this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
this.ClientSize = new System.Drawing.Size(471, 353);
this.Controls.Add(this.button1);
this.Controls.Add(this.textBox1);
this.Name = "Form1";
this.Text = "Form1";
this.ResumeLayout(false);
this.PerformLayout();
}
private void button1_Click(object sender, EventArgs e)
{
Thread t = new Thread(ThreadStart);
t.Start();
}
private void ThreadStart()
{
for (int i = 0; i<100000; i++)
{
SetTextBoxText(i.ToString());
}
}
private delegate void SetTextBoxTextDelegate(string str);
private void SetTextBoxText(string str)
{
if (this.textBox1.InvokeRequired)
{
this.Invoke(new SetTextBoxTextDelegate(SetTextBoxText), str);
}
else
{
this.textBox1.Text = str;
}
}
}
}
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using System.Threading;
namespace WindowsApplication1
{
public partial class Form1 : Form
{
private System.Windows.Forms.TextBox textBox1;
private System.Windows.Forms.Button button1;
public Form1()
{
InitializeComponent();
}
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(111, 44);
this.textBox1.Name = "textBox1";
this.textBox1.Size = new System.Drawing.Size(194, 21);
this.textBox1.TabIndex = 0;
//
// button1
//
this.button1.Location = new System.Drawing.Point(325, 34);
this.button1.Name = "button1";
this.button1.Size = new System.Drawing.Size(87, 30);
this.button1.TabIndex = 1;
this.button1.Text = "button1";
this.button1.UseVisualStyleBackColor = true;
this.button1.Click += new System.EventHandler(this.button1_Click);
//
// Form1
//
this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 12F);
this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
this.ClientSize = new System.Drawing.Size(471, 353);
this.Controls.Add(this.button1);
this.Controls.Add(this.textBox1);
this.Name = "Form1";
this.Text = "Form1";
this.ResumeLayout(false);
this.PerformLayout();
}
private void button1_Click(object sender, EventArgs e)
{
Thread t = new Thread(ThreadStart);
t.Start();
}
private void ThreadStart()
{
for (int i = 0; i<100000; i++)
{
SetTextBoxText(i.ToString());
}
}
private delegate void SetTextBoxTextDelegate(string str);
private void SetTextBoxText(string str)
{
if (this.textBox1.InvokeRequired)
{
this.Invoke(new SetTextBoxTextDelegate(SetTextBoxText), str);
}
else
{
this.textBox1.Text = str;
}
}
}
}
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