Regarding decimal entry in table control

Hi,

i am using one screen which is containing a table control. In that one field is called value(Local Currency value)

Before that i have created one table called zuvrate.

In zuvrate , i have declared 'value'(one field of my table) as dmbtr data type(currency with 13 , 2 ) and

reference field is t001-waers.

My problem is, if i enter decimal value in that particular column in my table control, 'please enter numeric value ' error is coming.

for example if i give 23.34 then error is coming

elseif i give 23 then ok no error.

How to enter decimal value in my table control?