html_agility | C# Online Compiler

html_agility by StrictTangent

// @nuget: HtmlAgilityPack

using System;
using System.Xml;
using HtmlAgilityPack;
using System.Collections.Generic;
using System.Linq;
using System.Xml.Xsl;
					
public class Program
{
	public static void Main()
	{
		var originalFullTextAsString =
        @"<body>
            <h1>This is <b>bold</b> heading</h1>
			<div class='embeddedVideo' id='ev_alextest.mp4'>
			<!-- BrightCove embedded player -->
			</div>
            <p>This is <u>underlined</u> paragraph</p>
        </body>";

		
		string embeddedVideos = originalFullTextAsString;
		HtmlDocument document = new HtmlDocument();
		document.LoadHtml(embeddedVideos);
		
		var htmlBody = document.DocumentNode.SelectSingleNode("//body");
		//DisplayNode(htmlBody);
		
		// Look for the placeholder nodes that were created via XSLT
		// ex: <div class='embeddedVideos' id='ev_{xlink:href}'></div>
		var inlineVideos = document.DocumentNode.SelectNodes("//div[@class='embeddedVideo']");
		if (inlineVideos != null)
		{
			foreach (HtmlNode video in inlineVideos.ToList())
			{
				HtmlNode originalNode = HtmlNode.CreateNode(video.OuterHtml.ToString());
				string videoTarget = video.Id.Substring(3); //SubstringAfter("ev_"); // use this later once I get player embedding to work
				string innerText = "<div style=\"height:100px; width:100%; background-color:red;\"></div>"; // TODO: later call in the displayvideo content partial
				//DisplayNode(video.ParentNode);
				DisplayNode(video);
				HtmlNode newNode = HtmlNode.CreateNode(video.InnerHtml += innerText);
				
				DisplayNode(video);
				//video.ParentNode.ReplaceChild(newNode, video);
				//DisplayNode(video.ParentNode);
				
				//DisplayNode(video);
				//DisplayNode(newNode);
				
				//HtmlNode thisnode = document.DocumentNode.SelectSingleNode(newNode.XPath);//.InsertAfter(originalNode, video);
				
				//document.DocumentNode.SelectSingleNode(video.ToString()).ReplaceChild(originalNode, video); // currently breaks because it can't find original node
			}
		}
		
		//var htmlBody = document.DocumentNode.SelectSingleNode("//body");
		DisplayNode(htmlBody);
		
		/*
        var htmlDoc = new HtmlDocument();
        htmlDoc.LoadHtml(html);

        var htmlBody = htmlDoc.DocumentNode.SelectSingleNode("//body");
		
		HtmlNode refChild = htmlBody.ChildNodes[1];
            
        HtmlNode newChild = HtmlNode.CreateNode("<p> This is inserted after node paragraph</p>");
		
		DisplayNode(htmlBody);
		
		htmlBody.InsertAfter(newChild, refChild);
	
        Console.WriteLine("\n****Node inserted after first child****\n");
		
		DisplayNode(htmlBody);
		*/
	}
	
	static void DisplayNode(HtmlNode node)
    {
		Console.WriteLine("Node Name: " + node.Name);
		Console.WriteLine(node.OuterHtml);
		Console.Write("\n" + node.Name + " children:\n");
		
		DisplayChildNodes(node);
	}
	
	static void DisplayChildNodes(HtmlNode nodeElement)
    {
        HtmlNodeCollection childNodes = nodeElement.ChildNodes;
		
		if (childNodes.Count == 0)
		{
			Console.WriteLine(nodeElement.Name + " has no children");
		}
		else
		{

        	foreach (var node in childNodes)
        	{
            	if (node.NodeType == HtmlNodeType.Element)
				{
					Console.WriteLine(node.OuterHtml);
				}
        	}
		}
    }
}

​x
 
// @nuget: HtmlAgilityPack
​
using System;
using System.Xml;
using HtmlAgilityPack;
using System.Collections.Generic;
using System.Linq;
using System.Xml.Xsl;
                    
public class Program
{
    public static void Main()
    {
        var originalFullTextAsString =
        @"<body>
            <h1>This is <b>bold</b> heading</h1>
            <div class='embeddedVideo' id='ev_alextest.mp4'>
            <!-- BrightCove embedded player -->
            </div>
            <p>This is <u>underlined</u> paragraph</p>
        </body>";
​
        
        string embeddedVideos = originalFullTextAsString;
        HtmlDocument document = new HtmlDocument();
        document.LoadHtml(embeddedVideos);
        
        var htmlBody = document.DocumentNode.SelectSingleNode("//body");
        //DisplayNode(htmlBody);
        
        // Look for the placeholder nodes that were created via XSLT
        // ex: <div class='embeddedVideos' id='ev_{xlink:href}'></div>
        var inlineVideos = document.DocumentNode.SelectNodes("//div[@class='embeddedVideo']");
        if (inlineVideos != null)
        {
            foreach (HtmlNode video in inlineVideos.ToList())
            {
                HtmlNode originalNode = HtmlNode.CreateNode(video.OuterHtml.ToString());
                string videoTarget = video.Id.Substring(3); //SubstringAfter("ev_"); // use this later once I get player embedding to work
                string innerText = "<div style=\"height:100px; width:100%; background-color:red;\"></div>"; // TODO: later call in the displayvideo content partial
                //DisplayNode(video.ParentNode);
                DisplayNode(video);
                HtmlNode newNode = HtmlNode.CreateNode(video.InnerHtml += innerText);
                
                DisplayNode(video);
                //video.ParentNode.ReplaceChild(newNode, video);
                //DisplayNode(video.ParentNode);
                
                //DisplayNode(video);
                //DisplayNode(newNode);
                
                //HtmlNode thisnode = document.DocumentNode.SelectSingleNode(newNode.XPath);//.InsertAfter(originalNode, video);
                
                //document.DocumentNode.SelectSingleNode(video.ToString()).ReplaceChild(originalNode, video); // currently breaks because it can't find original node
            }
        }
        
        //var htmlBody = document.DocumentNode.SelectSingleNode("//body");
        DisplayNode(htmlBody);
        
        /*
        var htmlDoc = new HtmlDocument();
        htmlDoc.LoadHtml(html);
​
        var htmlBody = htmlDoc.DocumentNode.SelectSingleNode("//body");
        
        HtmlNode refChild = htmlBody.ChildNodes[1];
            
        HtmlNode newChild = HtmlNode.CreateNode("<p> This is inserted after node paragraph</p>");
        
        DisplayNode(htmlBody);
        
        htmlBody.InsertAfter(newChild, refChild);
    
        Console.WriteLine("\n****Node inserted after first child****\n");
        
        DisplayNode(htmlBody);
        */
    }
    
    static void DisplayNode(HtmlNode node)
    {
        Console.WriteLine("Node Name: " + node.Name);
        Console.WriteLine(node.OuterHtml);
        Console.Write("\n" + node.Name + " children:\n");
        
        DisplayChildNodes(node);
    }
    
    static void DisplayChildNodes(HtmlNode nodeElement)
    {
        HtmlNodeCollection childNodes = nodeElement.ChildNodes;
        
        if (childNodes.Count == 0)
        {
            Console.WriteLine(nodeElement.Name + " has no children");
        }
        else
        {
​
            foreach (var node in childNodes)
            {
                if (node.NodeType == HtmlNodeType.Element)
                {
                    Console.WriteLine(node.OuterHtml);
                }
            }
        }
    }
}

Node Name: div
<div class='embeddedVideo' id='ev_alextest.mp4'>
            
            </div>

div children:
Node Name: div
<div class='embeddedVideo' id='ev_alextest.mp4'>
            
            <div style="height:100px; width:100%; background-color:red;"></div></div>

div children:
<div style="height:100px; width:100%; background-color:red;"></div>
Node Name: body
<body>
            <h1>This is <b>bold</b> heading</h1>
            <div class='embeddedVideo' id='ev_alextest.mp4'>
            
            <div style="height:100px; width:100%; background-color:red;"></div></div>
            <p>This is <u>underlined</u> paragraph</p>
        </body>

body children:
<h1>This is <b>bold</b> heading</h1>
<div class='embeddedVideo' id='ev_alextest.mp4'>
            
            <div style="height:100px; width:100%; background-color:red;"></div></div>
<p>This is <u>underlined</u> paragraph</p>

Cached Result
Last Run:	6:07:08 am
Compile:	0.244s
Execute:	0.098s
Memory:	505.15kb
CPU:	0.188s

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