using System;
using System.Text.RegularExpressions;
public class Example
{
public static void Main()
{
string pattern = @"<(?!\/*strong\W|\/*h1\W|\/*input\W|\/*b\W).*?>";
string input = @"<form action=""#"" method=""post"">
<div>
<label for=""name"">Text Input:</label>
<input type=""text"" name=""name"" id=""name"" value="" tabindex=""1"" />
</div>
<div>
<h4>Radio Button Choice</h4>
<label for=""radio-choice-1"">Choice 1</label>
<input type=""radio"" name=""radio-choice-1"" id=""radio-choice-1"" tabindex=""2"" value=""choice-1"" />
<label for=""radio-choice-2"">Choice 2</label>
<input type=""radio"" name=""radio-choice-2"" id=""radio-choice-2"" tabindex=""3"" value=""choice-2"" />
</div>
<div>
<label for=""select-choice"">Select Dropdown Choice:</label>
<select name=""select-choice"" id=""select-choice"">
<option value=""Choice 1"">Choice 1</option>
<option value=""Choice 2"">Choice 2</option>
<option value=""Choice 3"">Choice 3</option>
</select>
</div>
<div>
<label for=""textarea"">Textarea:</label>
<textarea cols=""40"" rows=""8"" name=""textarea"" id=""textarea""></textarea>
</div>
<div>
<label for=""checkbox"">Checkbox:</label>
<input type=""checkbox"" name=""checkbox"" id=""checkbox"" />
</div>
<div>
<input type=""submit"" value=""Submit"" />
</div>
</form>";
RegexOptions options = RegexOptions.Multiline;
foreach (Match m in Regex.Matches(input, pattern, options))
{
Console.WriteLine("'{0}' found at index {1}.", m.Value, m.Index);
}
}
}
Please keep in mind that these code samples are automatically generated and are not guaranteed to work. If you find any syntax errors, feel free to submit a bug report. For a full regex reference for C#, please visit: https://msdn.microsoft.com/en-us/library/system.text.regularexpressions.regex(v=vs.110).aspx