C# WebBrowser.Url屬性代碼示例

// Navigates to the URL in the address box when 
// the ENTER key is pressed while the ToolStripTextBox has focus.
private void toolStripTextBox1_KeyDown(object sender, KeyEventArgs e)
{
    if (e.KeyCode == Keys.Enter)
    {
        Navigate(toolStripTextBox1.Text);
    }
}

// Navigates to the URL in the address box when 
// the Go button is clicked.
private void goButton_Click(object sender, EventArgs e)
{
    Navigate(toolStripTextBox1.Text);
}

// Navigates to the given URL if it is valid.
private void Navigate(String address)
{
    if (String.IsNullOrEmpty(address)) return;
    if (address.Equals("about:blank")) return;
    if (!address.StartsWith("http://") &&
        !address.StartsWith("https://"))
    {
        address = "http://" + address;
    }
    try
    {
        webBrowser1.Navigate(new Uri(address));
    }
    catch (System.UriFormatException)
    {
        return;
    }
}

// Updates the URL in TextBoxAddress upon navigation.
private void webBrowser1_Navigated(object sender,
    WebBrowserNavigatedEventArgs e)
{
    toolStripTextBox1.Text = webBrowser1.Url.ToString();
}

//引入命名空間
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
    public class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private void webBrowser1_DocumentTitleChanged(object sender, EventArgs e)
        {
            this.Text = webBrowser1.DocumentTitle.ToString();
        }

        private void textBox1_KeyPress(object sender, KeyPressEventArgs e)
        {
            if (e.KeyChar == (char)13)
            {
                webBrowser1.Navigate(textBox1.Text);
            }
        }

        private void webBrowser1_Navigated(object sender,
           WebBrowserNavigatedEventArgs e)
        {
            textBox1.Text = webBrowser1.Url.ToString();
        }

        private void Form1_Load(object sender, EventArgs e)
        {
            buttonBack.Enabled = false;
            buttonForward.Enabled = false;
            buttonStop.Enabled = false;
        }

        private void buttonBack_Click(object sender, EventArgs e)
        {
            webBrowser1.GoBack();
            textBox1.Text = webBrowser1.Url.ToString();
        }

        private void buttonForward_Click(object sender, EventArgs e)
        {
            webBrowser1.GoForward();
            textBox1.Text = webBrowser1.Url.ToString();
        }

        private void buttonStop_Click(object sender, EventArgs e)
        {
            webBrowser1.Stop();
        }

        private void buttonHome_Click(object sender, EventArgs e)
        {
            webBrowser1.GoHome();
            textBox1.Text = webBrowser1.Url.ToString();
        }

        private void buttonRefresh_Click(object sender, EventArgs e)
        {
            webBrowser1.Refresh();
        }

        private void buttonSubmit_Click(object sender, EventArgs e)
        {
            webBrowser1.Navigate(textBox1.Text);
        }

        private void webBrowser1_CanGoBackChanged(object sender, EventArgs e)
        {
            if (webBrowser1.CanGoBack == true)
            {
                buttonBack.Enabled = true;
            }
            else
            {
                buttonBack.Enabled = false;
            }
        }

        private void webBrowser1_CanGoForwardChanged(object sender, EventArgs e)
        {
            if (webBrowser1.CanGoForward == true)
            {
                buttonForward.Enabled = true;
            }
            else
            {
                buttonForward.Enabled = false;
            }
        }

        private void webBrowser1_Navigating(object sender,
           WebBrowserNavigatingEventArgs e)
        {
            buttonStop.Enabled = true;
        }

        private void webBrowser1_DocumentCompleted(object sender,
           WebBrowserDocumentCompletedEventArgs e)
        {
            buttonStop.Enabled = false;
        }

        private void InitializeComponent()
        {
            this.webBrowser1 = new System.Windows.Forms.WebBrowser();
            this.textBox1 = new System.Windows.Forms.TextBox();
            this.buttonSubmit = new System.Windows.Forms.Button();
            this.buttonRefresh = new System.Windows.Forms.Button();
            this.buttonHome = new System.Windows.Forms.Button();
            this.buttonStop = new System.Windows.Forms.Button();
            this.buttonForward = new System.Windows.Forms.Button();
            this.buttonBack = new System.Windows.Forms.Button();
            this.SuspendLayout();

            this.webBrowser1.Anchor = ((System.Windows.Forms.AnchorStyles)((((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Bottom)
                        | System.Windows.Forms.AnchorStyles.Left)
                        | System.Windows.Forms.AnchorStyles.Right)));
            this.webBrowser1.Location = new System.Drawing.Point(15, 74);
            this.webBrowser1.MinimumSize = new System.Drawing.Size(20, 20);
            this.webBrowser1.Size = new System.Drawing.Size(700, 339);
            this.webBrowser1.DocumentCompleted += new System.Windows.Forms.WebBrowserDocumentCompletedEventHandler(this.webBrowser1_DocumentCompleted);

            this.textBox1.Location = new System.Drawing.Point(14, 47);
            this.textBox1.Size = new System.Drawing.Size(399, 20);
            this.textBox1.KeyPress += new System.Windows.Forms.KeyPressEventHandler(this.textBox1_KeyPress);

            this.buttonSubmit.Location = new System.Drawing.Point(419, 18);
            this.buttonSubmit.Size = new System.Drawing.Size(75, 49);
            this.buttonSubmit.Text = "Submit";
            this.buttonSubmit.UseVisualStyleBackColor = true;
            this.buttonSubmit.Click += new System.EventHandler(this.buttonSubmit_Click);

            this.buttonRefresh.Location = new System.Drawing.Point(338, 18);
            this.buttonRefresh.Size = new System.Drawing.Size(75, 23);
            this.buttonRefresh.Text = "Refresh";
            this.buttonRefresh.UseVisualStyleBackColor = true;
            this.buttonRefresh.Click += new System.EventHandler(this.buttonRefresh_Click);

            this.buttonHome.Location = new System.Drawing.Point(257, 18);
            this.buttonHome.Size = new System.Drawing.Size(75, 23);
            this.buttonHome.Text = "Home";
            this.buttonHome.UseVisualStyleBackColor = true;
            this.buttonHome.Click += new System.EventHandler(this.buttonHome_Click);

            this.buttonStop.Location = new System.Drawing.Point(176, 18);
            this.buttonStop.Size = new System.Drawing.Size(75, 23);
            this.buttonStop.Text = "Stop";
            this.buttonStop.UseVisualStyleBackColor = true;
            this.buttonStop.Click += new System.EventHandler(this.buttonStop_Click);

            this.buttonForward.Location = new System.Drawing.Point(95, 18);
            this.buttonForward.Size = new System.Drawing.Size(75, 23);
            this.buttonForward.Text = "Forward";
            this.buttonForward.UseVisualStyleBackColor = true;
            this.buttonForward.Click += new System.EventHandler(this.buttonForward_Click);

            this.buttonBack.Location = new System.Drawing.Point(14, 18);
            this.buttonBack.Size = new System.Drawing.Size(75, 23);
            this.buttonBack.Text = "Back";
            this.buttonBack.UseVisualStyleBackColor = true;
            this.buttonBack.Click += new System.EventHandler(this.buttonBack_Click);

            this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F);
            this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
            this.ClientSize = new System.Drawing.Size(728, 430);
            this.Controls.Add(this.webBrowser1);
            this.Controls.Add(this.textBox1);
            this.Controls.Add(this.buttonSubmit);
            this.Controls.Add(this.buttonRefresh);
            this.Controls.Add(this.buttonHome);
            this.Controls.Add(this.buttonStop);
            this.Controls.Add(this.buttonForward);
            this.Controls.Add(this.buttonBack);
            this.ResumeLayout(false);
            this.PerformLayout();
        }
        private System.Windows.Forms.WebBrowser webBrowser1;
        private System.Windows.Forms.TextBox textBox1;
        private System.Windows.Forms.Button buttonSubmit;
        private System.Windows.Forms.Button buttonRefresh;
        private System.Windows.Forms.Button buttonHome;
        private System.Windows.Forms.Button buttonStop;
        private System.Windows.Forms.Button buttonForward;
        private System.Windows.Forms.Button buttonBack;
        [STAThread]
        static void Main()
        {
            Application.EnableVisualStyles();
            Application.SetCompatibleTextRenderingDefault(false);
            Application.Run(new Form1());
        }
    }