How send to query fiel values that extracted from gridveiw

Hi
How can I send to query fiel values that extracted from gridveiw

my code:
foreach(????)
{
case 1:
DataControlFieldCell DateCell =
GridView1.Rows[e.RowIndex].Cells[0] as DataControlFieldCell;
GridView1.Columns[0].ExtractValuesFromCell(e.NewValues, DateCell,
DataControlRowState.Edit, true);
break;
case 2:
DataControlFieldCell KmBeginCell =
GridView1.Rows[e.RowIndex].Cells[4] as DataControlFieldCell;
GridView1.Columns[3].ExtractValuesFromCell(e.NewValues,
KmBeginCell, DataControlRowState.Edit, true);
break;
case 3:
DataControlFieldCell KmEndCell =
GridView1.Rows[e.RowIndex].Cells[5] as DataControlFieldCell;
GridView1.Columns[4].ExtractValuesFromCell(e.NewValues,
KmEndCell, DataControlRowState.Edit, true);
break;
}
weeklyReport.UpdateReportCar(DateCell,KmBeginCell, KmEndCell);//this my
query
DateTime DateCell;
int KmBeginCell;
int KmEndCell;


fanks

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