Using LINQ to exctract all hidden inputs from an HTML using C# -


hello have following html webclient code

<body onload="window.focus()"> <form name="form1" method="post" action="/www/www.do"> <input type="hidden" name="value1" value="aaaa"> <input type="hidden" name="value2" value="bbbb"> <input type="hidden" name="value3" value="cccc"> <input type="hidden" name="value4" value="dddd"> <input type="hidden" name="value5" value="eeee">  more html.....  </body> 

how can extract names , values input type hidden using c# linq or string functios?

using htmlagilitypack, can following:

var doc = new htmlweb().load("http://www.mywebsite.com"); var nodes = doc.documentnode.selectnodes("//input[@type='hidden' , @name , @value]"); foreach (var node in nodes) {     var inputname = node.attributes["name"].value;     var inputvalue = node.attributes["value"].value;     console.writeline("name: {0}, value: {1}", inputname, inputvalue); } 

if want load document text file instead of url, can do:

var doc = new htmldocument(); doc.load(@"c:\file.html"); 

if still want use linq purpose, selectnodes returns htmlnodecollection ienumerable<node>, can do:

var query = f in doc.documentnode.descendantnodes()             f.name == "input" && f.getattributevalue("type", "") != ""                     && f.attributes.contains("name") && f.attributes.contains("value")             select new                         {                             f.attributes["value"].value,                             f.attributes["name"].name                         };  foreach (var q in query) {     console.writeline("name: {0}, value: {1}", q.name, q.value); } 

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