private void Subscride(OperationFunction function, double interval)
{
var timer = new System.Timers.Timer(interval);
timer.Elapsed += (source, e) => { function(); };
timer.AutoReset = true;
timer.Enabled = true;
}
public IComparable CheckOperation(SqlRow row)
{
IComparable leftOperationCheck = LeftChild.CheckOperation(row);
IComparable rightOperationCheck = RightChild.CheckOperation(row);
if (leftOperationCheck != null && rightOperationCheck != null)
{
return(OperationFunction?.Invoke(leftOperationCheck, rightOperationCheck));
}
return(null);
}