Rtrim
Use the Rtrim expression type to trim trailing characters from a string (on the right side).
Use parameters that follow this form: rtrim(Dimension,"0")
where you specify both the dimension and the character to trim. For example, to trim all trailing "0 " characters when the source is "123000", specify: rtrim(Dimension, "0")
as the expression. In this example, the result is: 123.