problem in ZF13 and ZF3A

hi gurus,

there is a problem in bkpf-belnr field.

while the user is entering the document number for 1 entry the program is executing correctly.

while the enduser is entering for multiple selections from highest number to lowest number,here first number is displayed is the smallest and then the highest values is displayed.

but if we are selecting highest number also it is picking up from lowest number.

but here user wants what ever he has selected.

pls give me an interim solution.

urs

pradeep.r