public T ClassName(string className)
{
var list = ElementClassNames.ToList();
list.Add(className);
ElementClassNames = list;
return((T)this);
}
/// <summary>
/// Combines the attributes, id and classnames into an HTML string.
/// </summary>
public virtual string FormatAttributes()
{
var attributes = ElementAttributes
.Guard()
.ChainSet("id", ElementId)
.ChainSet("class", string.Join(" ", ElementClassNames.Guard()))
.Where(kvp => !string.IsNullOrEmpty(kvp.Value))
.Select(kvp => $"{EscapeString(kvp.Key)}=\"{EscapeString(kvp.Value)}\"");
return(string.Join(" ", attributes));
}
