SSRS is not returning data to display.

I have the following situation is to extract a field called ManagerTotal which brings all the total earnings of a manager of a month when TransacID=226. However I have ran the query and displays the data for this field perfect in sql studio mgmt. But when running this SSRS report in VS2010, it does not return the data after seeing it work in SQL Mgmt Studio. What am I doing wrong?

Here is what I got for the textbox expression:

FormatCurrency(Fields!ManagerTotal.Value)