// set difference
private DataTableLocal Minus(DataTableLocal other)
{
if (!this.Heading.Equals(other.Heading))
{
throw new EvaluatorException("tables have different headings");
}
var newtable = DataTableLocal.Create(this.Heading);
foreach (var row in this.GetRows()) //TODO:Enumerable
{
if (!other.Contains(row))
{
newtable.AddRow(row);
}
}
Logger.WriteLine(4, "[Minus={0}]", newtable);
return(newtable);
}