public static void SetAttribute(this StageElement parent, string name, object value)
{
bool flag = value == null;
StageAttribute str = parent.Attribute(name);
if (str != null)
{
if (flag)
{
str.Remove();
return;
}
if (str.isText && !(value is string))
{
throw new InvalidOperationException("Use SetTextAttribute to set text attributes.");
}
str.@value = SerializationMaster.ToString(value);
}
else if (!flag)
{
parent.Add(SerializationMaster.ToStageAttribute(name, value));
return;
}
}