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   源码介绍

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using System;
using System.Windows.Forms;

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

            LoadHtml(this, EventArgs.Empty);
            styleComboBox.SelectedIndex = 0;
        }

        private void UpdateButtons(object sender, EventArgs e)
        {
            bold.Checked = htmlEditor.SelectionBold;
            italic.Checked = htmlEditor.SelectionItalic;
            underline.Checked = htmlEditor.SelectionUnderline;
            subscript.Checked = htmlEditor.SelectionSubscript;
            superscript.Checked = htmlEditor.SelectionSuperscript;
            if (!string.IsNullOrEmpty(htmlEditor.SelectionFontName))
            fontComboBox.Text = htmlEditor.SelectionFontName;
            if(htmlEditor.SelectionFontSize>0)
            fontSize.Value = htmlEditor.SelectionFontSize;


            bUL.Checked = htmlEditor.SelectionBullets;
            bOL.Checked= htmlEditor.SelectionNumbering;

            toolStripStatusLabel1.Text = string.Format("SelectionStart: {0} SelectionLength: {1}",
                                                       htmlEditor.SelectionStart, htmlEditor.SelectionLength);
        }

        private void LoadHtml(object sender, EventArgs e)
        {
            htmlEditor.BodyHTML =
                @"
    <h1>Hello World!</h1>
    <h2>This is a subtitle</h2>
    <p>
        <strong><sup>H</sup><sub>T</sub>ML</strong> <u>example</u>
        <ul>
        <li>List element 1</li>
        <li>List element 2</li>
        <li>List element 3</li>
        </ul>
    </p>";
        }

        private void ShowHtml(object sender, EventArgs e)
        {
            MessageBox.Show(htmlEditor.BodyHTML);
        }

        private void bold_CheckedChanged(object sender, EventArgs e)
        {
            htmlEditor.SelectionBold = bold.Checked;
        }

        private void italic_CheckedChanged(object sender, EventArgs e)
        {
            htmlEditor.SelectionItalic = italic.Checked;
        }

        private void underline_CheckedChanged(object sender, EventArgs e)
        {
            htmlEditor.SelectionUnderline = underline.Checked;
        }

        private void subscript_CheckedChanged(object sender, EventArgs e)
        {
            htmlEditor.SelectionSubscript = subscript.Checked;
        }

        private void superscript_CheckedChanged(object sender, EventArgs e)
        {
            htmlEditor.SelectionSuperscript = superscript.Checked;
        }

        private void FindString(object sender, EventArgs e)
        {
            htmlEditor.FindString("HTML",true,true);
        }

        private void bUndo_Click(object sender, EventArgs e)
        {
            htmlEditor.Undo();
        }

        private void bRedo_Click(object sender, EventArgs e)
        {
            htmlEditor.Redo();
        }
        
        private void fontSize_ValueChanged(object sender, EventArgs e)
        {
            htmlEditor.SelectionFontSize =(int) fontSize.Value;
        }

        private void fontComboBox_Validated(object sender, EventArgs e)
        {
            htmlEditor.SelectionFontName = fontComboBox.Text;
        }

        private void fontComboBox_SelectedIndexChanged(object sender, EventArgs e)
        {
            if (fontComboBox.SelectedItem!=null)
            htmlEditor.SelectionFontName = fontComboBox.SelectedItem.ToString();
        }

        private void styleComboBox_SelectedIndexChanged(object sender, EventArgs e)
        {
            string css;
            switch (styleComboBox.SelectedIndex)
            {
                case 1://Word 2007
                    css = global::HtmlEditor.Properties.Resources.Office2007;
                    break;

                case 2://Office 2003
                    css = global::HtmlEditor.Properties.Resources.Office2003;
                    break;

                case 3://Wikipedia
                    css = global::HtmlEditor.Properties.Resources.Wikipedia;
                    break;

                case 4://Google
                    css = global::HtmlEditor.Properties.Resources.Google;
                    break;

                default:
                    css= string.Empty;
                    break;
            }
            htmlEditor.Style =global::HtmlEditor.Properties.Resources.Common  css;
        }

        private void bOL_CheckedChanged(object sender, EventArgs e)
        {


            htmlEditor.SelectionNumbering = bOL.Checked;
        }

        private void bUL_CheckedChanged(object sender, EventArgs e)
        {

            htmlEditor.SelectionBullets = bUL.Checked;
        }
    }
}