ASP.NET/C#: Check if number inside HTML is less than 5

I use the following code to test if a website contains the text: "xyz":
String strResult;
WebResponse objResponse;
WebRequest objRequest = HttpWebRequest.Create("http://example.com/");
objResponse = objRequest.GetResponse();
using (StreamReader sr = new StreamReader(objResponse.GetResponseStream()))
{
    strResult = sr.ReadToEnd();
    sr.Close();
}
if (strResult.Contains("xyz"))
{
    //
}
else {

}

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How can I test if this block of code contains a number that is less than 5?
<li><span class="floatLeft">Views:</span><span class="floatNone">0</span></li>

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skijAsked:
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anarki_jimbelSenior DeveloperCommented:
Not sure if I understand your question.

You need to parse your string and check the value. E.g., something like below.
I didn't do all required checks etc, this is just a sample.

        static void Main(string[] args)
        {

            string block = "<li><span class=\"floatLeft\">Views:</span><span class=\"floatNone\">0</span></li>";

            int spanOpenStartIndex = -1;
            int spanOpenEndIndex = -1;
            int spanCloseStartIndex = -1;
            string value = null;


            spanOpenStartIndex = block.LastIndexOf("<span");
            spanOpenEndIndex = block.IndexOf(">", spanOpenStartIndex);
            spanCloseStartIndex = block.LastIndexOf("</span>");
            value = block.Substring(spanOpenEndIndex + 1, spanCloseStartIndex - spanOpenEndIndex-1);

            try
            {
                int result = int.Parse(value);
                if (result < 5)
                    Console.WriteLine("The result '" + result + "' is less than 5");
                else
                    Console.WriteLine("The result '" + result + "' is greater than 5");
            }

            catch 
            {
                Console.WriteLine("Unable to parse '{0}'", value);
            }

            Console.Read();  

        }

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