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AngleSharp

, 3 Jul 2013 BSD 64.8K 2.2K 134
Bringing the DOM to C# with a HTML5/CSS3 parser written in C#.
Demo.zip
AngleSharp
Css
Tokens
DOM
Collections
Css
Properties
Rules
Selector
Values
Enums
Exception
Html
Basic
Formatting
Forms
Frames
Head
Lists
Media
Objects
Semantic
Tables
Interfaces
Mathml
Objects
Svg
Various
Xml
Foundation
Attributes
Helpers
Mutations
Html
Tokens
Properties
Stream
Xml
Tokens
packages
ModernUI.WPF.1.0.4
lib
net40
FirstFloor.ModernUI.dll
Microsoft.Windows.Shell.dll
net45
FirstFloor.ModernUI.dll
ModernUI.WPF.1.0.4.nupkg
ModernUI.WPF.1.0.4.nuspec
OxyPlot.Core.2013.1.49.1
lib
portable-net4+sl4+wp71+win8
OxyPlot.dll
OxyPlot.Core.2013.1.49.1.nupkg
OxyPlot.Core.2013.1.49.1.nuspec
OxyPlot.Wpf.2013.1.49.1
lib
NET40
OxyPlot.Wpf.dll
OxyPlot.Xps.dll
NET45
OxyPlot.Wpf.dll
OxyPlot.Xps.dll
OxyPlot.Wpf.2013.1.49.1.nupkg
OxyPlot.Wpf.2013.1.49.1.nuspec
Samples
Logo.ico
Pages
Properties
Settings.settings
ViewModels
Source.zip
Documents
using AngleSharp.Css;
using AngleSharp.DOM.Collections;
using System;
using System.Text;

namespace AngleSharp.DOM.Css
{
    /// <summary>
    /// Represents a CSS Stylesheet.
    /// </summary>
    [DOM("CSSStyleSheet")]
    public sealed class CSSStyleSheet : StyleSheet, ICSSObject
    {
        #region Members

        CSSRuleList _cssRules;
        CSSRule _ownerRule;

        #endregion

        #region ctor

        /// <summary>
        /// Creates a new CSS Stylesheet.
        /// </summary>
        internal CSSStyleSheet()
        {
            _cssRules = new CSSRuleList();
        }

        #endregion

        #region Properties

        /// <summary>
        /// Gets a CSSRuleList of the CSS rules in the style sheet.
        /// </summary>
        [DOM("cssRules")]
        public CSSRuleList CssRules
        {
            get { return _cssRules; }
        }

        /// <summary>
        /// Gets the @import rule if the stylesheet was importated otherwise it returns null.
        /// </summary>
        [DOM("ownerRule")]
        public CSSRule OwnerRule
        {
            get { return _ownerRule; }
            internal set { _ownerRule = value; }
        }

        #endregion

        #region Methods

        /// <summary>
        /// Removes a style rule from the current style sheet object.
        /// </summary>
        /// <param name="index">The index representing the position to be removed.</param>
        /// <returns>The current stylesheet.</returns>
        [DOM("deleteRule")]
        public CSSStyleSheet DeleteRule(Int32 index)
        {
            if (index >= 0 && index < _cssRules.Length)
                _cssRules.RemoveAt(index);

            return this;
        }

        /// <summary>
        /// Inserts a new style rule into the current style sheet.
        /// </summary>
        /// <param name="rule">A string containing the rule to be inserted (selector and declaration).</param>
        /// <param name="index">The index representing the position to be inserted.</param>
        /// <returns>The current stylesheet.</returns>
        [DOM("insertRule")]
        public CSSStyleSheet InsertRule(String rule, Int32 index)
        {
            if (index >= 0 && index <= _cssRules.Length)
            {
                var value = CssParser.ParseRule(rule);
                _cssRules.InsertAt(index, value);
            }

            return this;
        }

        #endregion

        #region String representation

        /// <summary>
        /// Returns a CSS code representation of the stylesheet.
        /// </summary>
        /// <returns>A string that contains the code.</returns>
        public String ToCss()
        {
            var sb = new StringBuilder();

            foreach (var rule in _cssRules)
                sb.AppendLine(rule.ToCss());

            return sb.ToString();
        }

        #endregion
    }
}

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License

This article, along with any associated source code and files, is licensed under The BSD License

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About the Author

Florian Rappl
Chief Technology Officer
Germany Germany
Florian is from Regensburg, Germany. He started his programming career with Perl. After programming C/C++ for some years he discovered his favorite programming language C#. He did work at Siemens as a programmer until he decided to study Physics. During his studies he worked as an IT consultant for various companies.

Florian is also giving lectures in C#, HTML5 with CSS3 and JavaScript, and other topics. Having graduated from University with a Master's degree in theoretical physics he is currently busy doing his PhD in the field of High Performance Computing.

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