actionscript-3 - datagrid as3 - 編集したセルを変数に保存する方法

Question

プロセスの早い段階で取得した変数から情報を取得するデータグリッドに取り組んでいます。overpaidAmount 列を編集できるようにする必要があります。ユーザーからの入力が必要な列を除くすべての列をロックダウンしましたが、情報が追加されたら、それを変数に戻すにはどうすればよいですか? オンラインであらゆる場所を調べましたが、この特定の問題について何も見つかりませんでした。

import fl.controls.DataGrid;
import fl.controls.ScrollPolicy;
import fl.data.DataProvider;
import fl.controls.dataGridClasses.DataGridColumn;

var col1:DataGridColumn = new DataGridColumn("Line");
var col2:DataGridColumn = new DataGridColumn("ServiceCode");
var col3:DataGridColumn = new DataGridColumn("BilledCharge");
var col4:DataGridColumn = new DataGridColumn("Paid");
var col5:DataGridColumn = new DataGridColumn("OverpaidAmount");

datagrid.addColumn(col1);
datagrid.addColumn(col2);
datagrid.addColumn(col3);
datagrid.addColumn(col4);
datagrid.addColumn(col5);

col1.editable = false;
col2.editable = false;
col3.editable = false;
col4.editable = false;

col1.minWidth = 40;
col2.minWidth = 80;
col3.minWidth = 80;
col4.minWidth = 80;
col5.minWidth = 130;

var myData:Array;

if ((majorPercentage1 == "---") || (majorPercentage1 == "000") || (majorPercentage1 == "   "))
{
    myData =  
    [
        {Line:"1", ServiceCode: cpt1, BilledCharge: charge1, Paid: basicPaid1, OverpaidAmount: overpaidAmount1},
        {Line:"2", ServiceCode: cpt2, BilledCharge: charge2, Paid: basicPaid2, OverpaidAmount: overpaidAmount2},
        {Line:"3", ServiceCode: cpt3, BilledCharge: charge3, Paid: basicPaid3, OverpaidAmount: overpaidAmount3},
        {Line:"4", ServiceCode: cpt4, BilledCharge: charge4, Paid: basicPaid4, OverpaidAmount: overpaidAmount4},
        {Line:"5", ServiceCode: cpt5, BilledCharge: charge5, Paid: basicPaid5, OverpaidAmount: overpaidAmount5}
    ];
}
else
{
    myData =  
    [
        {Line:"1", ServiceCode: cpt1, BilledCharge: charge1, Paid: majorPaid1, OverpaidAmount: overpaidAmount1},
        {Line:"2", ServiceCode: cpt2, BilledCharge: charge2, Paid: majorPaid2, OverpaidAmount: overpaidAmount2},
        {Line:"3", ServiceCode: cpt3, BilledCharge: charge3, Paid: majorPaid3, OverpaidAmount: overpaidAmount3},
        {Line:"4", ServiceCode: cpt4, BilledCharge: charge4, Paid: majorPaid4, OverpaidAmount: overpaidAmount4},
        {Line:"5", ServiceCode: cpt5, BilledCharge: charge5, Paid: majorPaid5, OverpaidAmount: overpaidAmount5}
    ];  
}
datagrid.dataProvider = new DataProvider(myData);

どんな助けでも大歓迎です。