如何在C＃中的Web浏览器控件中设置滚动

Question

I want to set the position of the webpage in a web browser control. the application size is smaller than the webpage. I want to set it in the middle of it.

Answer 1

This gets you most of the way there

Note that the main form is set AutoSize = true and AutoSizeMode = GrowAndShrink

When the html document is navigated to, a check is made is to see if either scrollbar is present. If either scrollbar is present, the size of the webbrowser is set to the scroll rectangle, ie, the web browser will grow to the minimum size needed to display the webpage. Since main form is AutoSize , it will resize to fit the webbrowser

Form1.cs

using System;
using System.Drawing;
using System.Windows.Forms;

namespace WindowsFormsApp1
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private void Button1_Click(object sender, EventArgs e)
        {
            //comment out one of these for testing

            webBrowser1.Navigate(@"C:\foo\minimumWebPage.htm");
            //webBrowser1.Navigate(@"C:\foo\bigWebPage.htm");
        }

        private void WebBrowser1_DocumentCompleted(object sender, WebBrowserDocumentCompletedEventArgs e)
        {
            if (IsHorizontalScrollbarPresent() || IsVerticalScrollbarPresent())
            {
                webBrowser1.Size = new Size(webBrowser1.Document.Body.ScrollRectangle.Width, webBrowser1.Document.Body.ScrollRectangle.Height);
            }
        }

        public bool IsHorizontalScrollbarPresent()
        {
            return webBrowser1.Document.Body.ScrollRectangle.Width > webBrowser1.Document.Window.Size.Width;
        }

        public bool IsVerticalScrollbarPresent()
        {
            return webBrowser1.Document.Body.ScrollRectangle.Height > webBrowser1.Document.Window.Size.Height;
        }
    }
}

Form1.Designer.cs

namespace WindowsFormsApp1
{
    partial class Form1
    {
        /// <summary>
        /// Required designer variable.
        /// </summary>
        private System.ComponentModel.IContainer components = null;

        /// <summary>
        /// Clean up any resources being used.
        /// </summary>
        /// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>
        protected override void Dispose(bool disposing)
        {
            if (disposing && (components != null))
            {
                components.Dispose();
            }
            base.Dispose(disposing);
        }

        #region Windows Form Designer generated code

        /// <summary>
        /// Required method for Designer support - do not modify
        /// the contents of this method with the code editor.
        /// </summary>
        private void InitializeComponent()
        {
            this.button1 = new System.Windows.Forms.Button();
            this.webBrowser1 = new System.Windows.Forms.WebBrowser();
            this.SuspendLayout();
            // 
            // button1
            // 
            this.button1.Location = new System.Drawing.Point(12, 12);
            this.button1.Name = "button1";
            this.button1.Size = new System.Drawing.Size(75, 23);
            this.button1.TabIndex = 0;
            this.button1.Text = "Go";
            this.button1.UseVisualStyleBackColor = true;
            this.button1.Click += new System.EventHandler(this.Button1_Click);
            // 
            // webBrowser1
            // 
            this.webBrowser1.Location = new System.Drawing.Point(11, 66);
            this.webBrowser1.Margin = new System.Windows.Forms.Padding(10);
            this.webBrowser1.MinimumSize = new System.Drawing.Size(20, 20);
            this.webBrowser1.Name = "webBrowser1";
            this.webBrowser1.Size = new System.Drawing.Size(330, 138);
            this.webBrowser1.TabIndex = 1;
            this.webBrowser1.DocumentCompleted += new System.Windows.Forms.WebBrowserDocumentCompletedEventHandler(this.WebBrowser1_DocumentCompleted);
            // 
            // Form1
            // 
            this.AutoScaleDimensions = new System.Drawing.SizeF(8F, 16F);
            this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
            this.AutoSize = true;
            this.AutoSizeMode = System.Windows.Forms.AutoSizeMode.GrowAndShrink;
            this.ClientSize = new System.Drawing.Size(475, 222);
            this.Controls.Add(this.webBrowser1);
            this.Controls.Add(this.button1);
            this.FormBorderStyle = System.Windows.Forms.FormBorderStyle.FixedDialog;
            this.Name = "Form1";
            this.Text = "Show Get-NetConnectionProfile Output";
            this.ResumeLayout(false);

        }

        #endregion

        private System.Windows.Forms.Button button1;
        private System.Windows.Forms.WebBrowser webBrowser1;
    }
}

**Output for minimum html file

**Output for big html file