C# 多线程 画面假死问题
子线程开始,主画面假死,使用Application.DoEvents()试了试,但是子线程无法终止,能不能不用Application.DoEvents()解决画面假死的问题,代码如下,
using System;using System.Collections.Generic;using System.ComponentModel;using System.Data;using System.Drawing;using System.Text;using System.Windows.Forms;using System.Data.SqlClient;using System.Threading;namespace BWTest{ public partial class Form1 : Form { public delegate void AddListItem(); public AddListItem myDelegate; private Thread my; public Form1() { InitializeComponent(); } /// <summary> /// start /// </summary> /// <param name="sender"></param> /// <param name="e"></param> private void button1_Click(object sender, EventArgs e) { my = new Thread(new ThreadStart(Run)); my.Start(); } /// <summary> /// cancel /// </summary> /// <param name="sender"></param> /// <param name="e"></param> private void button2_Click(object sender, EventArgs e) { if (my.ThreadState != ThreadState.Stopped) my.Abort(); } private void Form1_Load(object sender, EventArgs e) { myDelegate = new AddListItem(AddListItemMethod); } public void AddListItemMethod() { String myItem; for (int i = 0; i < 6000; i++) { myItem = "MyListItem"+i.ToString(); this.richTextBox1.AppendText(myItem+"\r\n"); this.richTextBox1.Update(); } } public void Run() { this.richTextBox1.Invoke(myDelegate); } }}
namespace BWTest{ partial class Form1 { /// <summary> /// 必要なデザイナ変数です。 /// </summary> private System.ComponentModel.IContainer components = null; /// <summary> /// 使用中のリソースをすべてクリーンアップします。 /// </summary> /// <param name="disposing">マネージ リソースが破棄される場合 true、破棄されない場合は false です。</param> protected override void Dispose(bool disposing) { if (disposing && (components != null)) { components.Dispose(); } base.Dispose(disposing); } #region Windows フォーム デザイナで生成されたコード /// <summary> /// デザイナ サポートに必要なメソッドです。このメソッドの内容を /// コード エディタで変更しないでください。 /// </summary> private void InitializeComponent() { this.richTextBox1 = new System.Windows.Forms.RichTextBox(); this.button1 = new System.Windows.Forms.Button(); this.button2 = new System.Windows.Forms.Button(); this.SuspendLayout(); // // richTextBox1 // this.richTextBox1.Location = new System.Drawing.Point(12, 12); this.richTextBox1.Name = "richTextBox1"; this.richTextBox1.Size = new System.Drawing.Size(609, 446); this.richTextBox1.TabIndex = 0; this.richTextBox1.Text = ""; // // button1 // this.button1.Location = new System.Drawing.Point(37, 487); this.button1.Name = "button1"; this.button1.Size = new System.Drawing.Size(75, 23); this.button1.TabIndex = 1; this.button1.Text = "Start"; this.button1.UseVisualStyleBackColor = true; this.button1.Click += new System.EventHandler(this.button1_Click); // // button2 // this.button2.Location = new System.Drawing.Point(169, 487); this.button2.Name = "button2"; this.button2.Size = new System.Drawing.Size(75, 23); this.button2.TabIndex = 1; this.button2.Text = "Cancel"; 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(643, 533); this.Controls.Add(this.button2); this.Controls.Add(this.button1); this.Controls.Add(this.richTextBox1); this.Name = "Form1"; this.Text = "Form1"; this.Load += new System.EventHandler(this.Form1_Load); this.ResumeLayout(false); } #endregion private System.Windows.Forms.RichTextBox richTextBox1; private System.Windows.Forms.Button button1; private System.Windows.Forms.Button button2; }}