dim i as integer
dim strName as string
dim strDesc as string
dim strValue as string

do i = 0 to me.flygrid1.rows.count
strName = me.flygrid1.column(0).row(i)
strDesc = me.flygrid1.column(1).row(i)
strValue = me.flygrid1.column(2).row(i)
next i

C#:
object[] rowValues = new object[flyGrid.Rows.Items.Count]
int
for (int i =0; i< rowvalues.Length; i++)
{
  //retrieve whole row value, it is may be array of values/cells
  rowValues[i] = flyGrid.Rows.Items[i].Value;
}

C#:
string strName, strDesc, strValue;
foreach(NodeBase node in flyGrid.Rows.Items)
{
  strName = flygrid1.columns.Items(0).GetValue(node);
  strDesc = flygrid1.columns.Items(1).GetValue(node);
  strValue = flygrid1.columns.Items(2).GetValue(node);
}