public object this[object key]
{
get
{
if (key is string)
{
return(st.GetAttribute((string)key));
}
return(null);
}
set
{
if (key is string)
{
st.RemoveAttribute((string)key);
st.SetAttribute((string)key, value);
}
else
{
throw new InvalidOperationException();
}
}
}
