private IHTMLMetaElement GetElement(string metaDataName)
{
metaDataName = metaDataName.ToUpper(CultureInfo.InvariantCulture);
if (!m_metaElementsGenerated)
{
// Get the meta tags
IEnumerator tagEnumerator = MetaDataElements.GetEnumerator();
// Go through all the tags in the head and pull out the meta tags
while (tagEnumerator.MoveNext())
{
IHTMLMetaElement thisTag = (IHTMLMetaElement)tagEnumerator.Current;
if (thisTag.name != null)
{
if (!m_metaElements.ContainsKey(thisTag.name))
{
m_metaElements.Add(thisTag.name.ToUpper(CultureInfo.InvariantCulture), thisTag);
}
}
else if (thisTag.httpEquiv != null)
{
if (!m_metaElements.ContainsKey(thisTag.httpEquiv))
{
m_metaElements.Add(thisTag.httpEquiv.ToUpper(CultureInfo.InvariantCulture), thisTag);
}
}
}
m_metaTableGenerated = true;
}
return((IHTMLMetaElement)m_metaElements[metaDataName]);
}
/// <summary>
/// Gets a particular metadata tag's value. Return null if the meta tag doesn't exist
/// in this document.
/// </summary>
/// <param name="metaDataName">The name of the metadata element to retrieve</param>
/// <returns>The value</returns>
private string GetMetaDataValue(string metaDataName)
{
if (!m_metaTableGenerated)
{
// Get the meta tags
IEnumerator tagEnumerator = MetaDataElements.GetEnumerator();
// Go through all the tags in the head and pull out the meta tags
while (tagEnumerator.MoveNext())
{
IHTMLElement thisTag = (IHTMLElement)tagEnumerator.Current;
// in the meta tags, grab the attributes and put them in the table
foreach (string nameAttribute in NAME_ATTRIBUTES)
{
string name = (string)thisTag.getAttribute(nameAttribute, 0);
if (name != null)
{
name = name.ToUpper(CultureInfo.InvariantCulture); // for case insensitive comparison
string content = (string)thisTag.getAttribute("CONTENT", 0);
if (!m_metaTags.ContainsKey(name))
{
m_metaTags.Add(name, content);
break;
}
}
}
}
m_metaTableGenerated = true;
}
if (m_metaTags.Contains(metaDataName))
{
return((string)m_metaTags[metaDataName]);
}
else
{
return(null);
}
}
