How to set boundry value in dynamic rows in datagrid

hi friends,
I am new to flex.i want to add dynamic rows to datagrid that means.once i enter the first record i want to press tab button then it will automatically go to the second row.and update the record continuously.once it reach the maximum value means the next row will not be edit.
mxkimum value =10000
from value            to value        percentage
0.01                        2000             10
2000                         8000           20
8000                        10000               30
after it reach 10000 next row will not edit,this is i want how i do this please help.
If any suggession tel
thanks
B.venkatesan

Hi,
As Armin said use the following:
wdContext.nodeXXX().currentXXXElement().setAttributeValue("attributeName", value)
Here you give the value as value of simpleType and not its description.
thanks & regards,
Manoj

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