I have a DE which has a tickbox field with boolean value of true set all the time.Now i want to get the total no of rowcount of my de by using this defaul value set@neededNumber=RowCount(LookupRows("TableName","TickBox","true"))

But it doesnt seem to be working.Is there some syntax error here and also is there any other way of getting the no of rows of your data ,I need in a landing page to make a incremental id.Thank you.