WebBrowser 简单操作
Form 代码
1 public partial class Form1 : Form 2 { 3 public Form1() 4 { 5 InitializeComponent(); 6 } 7 8 private void textBox1_KeyPress(object sender, KeyPressEventArgs e) 9 { 10 if (e.KeyChar == (char)13) 11 { 12 webBrowser1.Navigate(textBox1.Text); 13 } 14 } 15 16 private void Form1_Load(object sender, EventArgs e) 17 { 18 buttonBack.Enabled = false; 19 buttonForward.Enabled = false; 20 buttonStop.Enabled = false; 21 22 this.webBrowser1.CanGoBackChanged += (s, k) => { if (webBrowser1.CanGoBack) buttonBack.Enabled = true; else buttonBack.Enabled = false; }; 23 this.webBrowser1.CanGoForwardChanged += (s, k) => { if (webBrowser1.CanGoForward) buttonForward.Enabled = true; else buttonForward.Enabled = false; }; 24 this.webBrowser1.DocumentTitleChanged += (s, k) => { this.Text = webBrowser1.DocumentTitle.ToString(); }; 25 } 26 27 private void buttonBack_Click(object sender, EventArgs e) 28 { 29 webBrowser1.GoBack(); 30 textBox1.Text = webBrowser1.Url.ToString(); 31 } 32 33 private void buttonForward_Click(object sender, EventArgs e) 34 { 35 webBrowser1.GoForward(); 36 textBox1.Text = webBrowser1.Url.ToString(); 37 } 38 39 private void webBrowser1_Navigated(object sender, WebBrowserNavigatedEventArgs e) 40 { 41 this.Text = webBrowser1.DocumentTitle.ToString(); 42 textBox1.Text = webBrowser1.Url.ToString(); 43 } 44 45 private void buttonStop_Click(object sender, EventArgs e) 46 { 47 webBrowser1.Stop(); 48 } 49 50 private void buttonHome_Click(object sender, EventArgs e) 51 { 52 webBrowser1.GoHome(); 53 textBox1.Text = webBrowser1.Url == null ? "" : webBrowser1.Url.ToString(); 54 } 55 56 private void buttonRefresh_Click(object sender, EventArgs e) 57 { 58 webBrowser1.Refresh(); 59 } 60 61 private void buttonSubmit_Click(object sender, EventArgs e) 62 { 63 webBrowser1.Navigate(textBox1.Text); 64 } 65 66 private void webBrowser1_Navigating(object sender, WebBrowserNavigatingEventArgs e) 67 { 68 buttonStop.Enabled = true; 69 } 70 71 private void webBrowser1_DocumentCompleted(object sender, WebBrowserDocumentCompletedEventArgs e) 72 { 73 textBox2.Text = webBrowser1.DocumentText; 74 buttonStop.Enabled = false; 75 if (webBrowser1.CanGoBack) 76 buttonBack.Enabled = true; 77 else 78 buttonBack.Enabled = false; 79 80 if (webBrowser1.CanGoForward) 81 buttonForward.Enabled = true; 82 else 83 buttonForward.Enabled = false; 84 } 85 86 private void button1_Click(object sender, EventArgs e) 87 { 88 webBrowser1.Print(); 89 } 90 }
Designer 代码
1 partial class Form1 2 { 3 /// <summary> 4 /// Required designer variable. 5 /// </summary> 6 private System.ComponentModel.IContainer components = null; 7 8 /// <summary> 9 /// Clean up any resources being used. 10 /// </summary> 11 /// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param> 12 protected override void Dispose(bool disposing) 13 { 14 if (disposing && (components != null)) 15 { 16 components.Dispose(); 17 } 18 base.Dispose(disposing); 19 } 20 21 #region Windows Form Designer generated code 22 23 /// <summary> 24 /// Required method for Designer support - do not modify 25 /// the contents of this method with the code editor. 26 /// </summary> 27 private void InitializeComponent() 28 { 29 this.textBox1 = new System.Windows.Forms.TextBox(); 30 this.buttonSubmit = new System.Windows.Forms.Button(); 31 this.buttonRefresh = new System.Windows.Forms.Button(); 32 this.buttonHome = new System.Windows.Forms.Button(); 33 this.buttonStop = new System.Windows.Forms.Button(); 34 this.buttonForward = new System.Windows.Forms.Button(); 35 this.buttonBack = new System.Windows.Forms.Button(); 36 this.webBrowser1 = new System.Windows.Forms.WebBrowser(); 37 this.textBox2 = new System.Windows.Forms.TextBox(); 38 this.button1 = new System.Windows.Forms.Button(); 39 this.SuspendLayout(); 40 // 41 // textBox1 42 // 43 this.textBox1.Location = new System.Drawing.Point(14, 43); 44 this.textBox1.Name = "textBox1"; 45 this.textBox1.Size = new System.Drawing.Size(480, 21); 46 this.textBox1.TabIndex = 14; 47 this.textBox1.KeyPress += new System.Windows.Forms.KeyPressEventHandler(this.textBox1_KeyPress); 48 // 49 // buttonSubmit 50 // 51 this.buttonSubmit.Location = new System.Drawing.Point(513, 17); 52 this.buttonSubmit.Name = "buttonSubmit"; 53 this.buttonSubmit.Size = new System.Drawing.Size(75, 45); 54 this.buttonSubmit.TabIndex = 13; 55 this.buttonSubmit.Text = "Submit"; 56 this.buttonSubmit.UseVisualStyleBackColor = true; 57 this.buttonSubmit.Click += new System.EventHandler(this.buttonSubmit_Click); 58 // 59 // buttonRefresh 60 // 61 this.buttonRefresh.Location = new System.Drawing.Point(338, 17); 62 this.buttonRefresh.Name = "buttonRefresh"; 63 this.buttonRefresh.Size = new System.Drawing.Size(75, 21); 64 this.buttonRefresh.TabIndex = 12; 65 this.buttonRefresh.Text = "Refresh"; 66 this.buttonRefresh.UseVisualStyleBackColor = true; 67 this.buttonRefresh.Click += new System.EventHandler(this.buttonRefresh_Click); 68 // 69 // buttonHome 70 // 71 this.buttonHome.Location = new System.Drawing.Point(257, 17); 72 this.buttonHome.Name = "buttonHome"; 73 this.buttonHome.Size = new System.Drawing.Size(75, 21); 74 this.buttonHome.TabIndex = 11; 75 this.buttonHome.Text = "Home"; 76 this.buttonHome.UseVisualStyleBackColor = true; 77 this.buttonHome.Click += new System.EventHandler(this.buttonHome_Click); 78 // 79 // buttonStop 80 // 81 this.buttonStop.Location = new System.Drawing.Point(176, 17); 82 this.buttonStop.Name = "buttonStop"; 83 this.buttonStop.Size = new System.Drawing.Size(75, 21); 84 this.buttonStop.TabIndex = 10; 85 this.buttonStop.Text = "Stop"; 86 this.buttonStop.UseVisualStyleBackColor = true; 87 this.buttonStop.Click += new System.EventHandler(this.buttonStop_Click); 88 // 89 // buttonForward 90 // 91 this.buttonForward.Location = new System.Drawing.Point(95, 17); 92 this.buttonForward.Name = "buttonForward"; 93 this.buttonForward.Size = new System.Drawing.Size(75, 21); 94 this.buttonForward.TabIndex = 9; 95 this.buttonForward.Text = "Forward"; 96 this.buttonForward.UseVisualStyleBackColor = true; 97 this.buttonForward.Click += new System.EventHandler(this.buttonForward_Click); 98 // 99 // buttonBack 100 // 101 this.buttonBack.Location = new System.Drawing.Point(14, 17); 102 this.buttonBack.Name = "buttonBack"; 103 this.buttonBack.Size = new System.Drawing.Size(75, 21); 104 this.buttonBack.TabIndex = 8; 105 this.buttonBack.Text = "Back"; 106 this.buttonBack.UseVisualStyleBackColor = true; 107 this.buttonBack.Click += new System.EventHandler(this.buttonBack_Click); 108 // 109 // webBrowser1 110 // 111 this.webBrowser1.Location = new System.Drawing.Point(0, 67); 112 this.webBrowser1.MinimumSize = new System.Drawing.Size(20, 18); 113 this.webBrowser1.Name = "webBrowser1"; 114 this.webBrowser1.Size = new System.Drawing.Size(815, 312); 115 this.webBrowser1.TabIndex = 15; 116 this.webBrowser1.DocumentCompleted += new System.Windows.Forms.WebBrowserDocumentCompletedEventHandler(this.webBrowser1_DocumentCompleted); 117 this.webBrowser1.Navigated += new System.Windows.Forms.WebBrowserNavigatedEventHandler(this.webBrowser1_Navigated); 118 this.webBrowser1.Navigating += new System.Windows.Forms.WebBrowserNavigatingEventHandler(this.webBrowser1_Navigating); 119 // 120 // textBox2 121 // 122 this.textBox2.Location = new System.Drawing.Point(0, 386); 123 this.textBox2.Multiline = true; 124 this.textBox2.Name = "textBox2"; 125 this.textBox2.Size = new System.Drawing.Size(807, 223); 126 this.textBox2.TabIndex = 16; 127 // 128 // button1 129 // 130 this.button1.Location = new System.Drawing.Point(419, 17); 131 this.button1.Name = "button1"; 132 this.button1.Size = new System.Drawing.Size(75, 21); 133 this.button1.TabIndex = 12; 134 this.button1.Text = "Print"; 135 this.button1.UseVisualStyleBackColor = true; 136 this.button1.Click += new System.EventHandler(this.button1_Click); 137 // 138 // Form1 139 // 140 this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 12F); 141 this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font; 142 this.ClientSize = new System.Drawing.Size(819, 619); 143 this.Controls.Add(this.textBox2); 144 this.Controls.Add(this.webBrowser1); 145 this.Controls.Add(this.textBox1); 146 this.Controls.Add(this.buttonSubmit); 147 this.Controls.Add(this.button1); 148 this.Controls.Add(this.buttonRefresh); 149 this.Controls.Add(this.buttonHome); 150 this.Controls.Add(this.buttonStop); 151 this.Controls.Add(this.buttonForward); 152 this.Controls.Add(this.buttonBack); 153 this.Name = "Form1"; 154 this.Text = "Form1"; 155 this.Load += new System.EventHandler(this.Form1_Load); 156 this.ResumeLayout(false); 157 this.PerformLayout(); 158 159 } 160 161 #endregion 162 163 private System.Windows.Forms.TextBox textBox1; 164 private System.Windows.Forms.Button buttonSubmit; 165 private System.Windows.Forms.Button buttonRefresh; 166 private System.Windows.Forms.Button buttonHome; 167 private System.Windows.Forms.Button buttonStop; 168 private System.Windows.Forms.Button buttonForward; 169 private System.Windows.Forms.Button buttonBack; 170 private System.Windows.Forms.WebBrowser webBrowser1; 171 private System.Windows.Forms.TextBox textBox2; 172 private System.Windows.Forms.Button button1; 173 } 174 }
通过流 读取页面源代码
1 WebClient client = new WebClient(); 2 Stream str= client.OpenRead("http://www.baidu.com"); 3 StreamReader sr = new StreamReader(str); 4 5 string line; 6 while ((line=sr.ReadLine())!=null) 7 { 8 listBox1.Items.Add(line); 9 } 10 str.Close();
打印方法
1 webBrowser1.Print();