Parameter fields position problem

Dear all,

I have 4 parameter fields in Crystal repport, and the fields type is numeric. When I pass double typed values from

C# .net to the parameter fields. The horizontal display of the values is not aligned. some aligns to left and some aligns to right.

And the horizontal position of the field is moved to left or right too. Can I fix it by settting the type of the parameter filed to string?

And can I pass double typed values to string parameter fields in crystal report?

Thanks.