>I have tried putting a variable containing a picture clause like "99,99,999.99". This variable I put in Format and the variable name is printed rather than the format it contains for the numeric value.
>
>In Screen it is possible using #ITSEXPRESSION ~ but for report writer ?
>
>Thanks in advance

You can use TRANSFORM() function

m.pict = "99,99,999.99"  
* text object
TRANSFORM(field1, m.pict)