用for也可以
for (int i = 0; i < mydatagrid.Items.Count; i++)
{
string data = mydatagrid.Items[i].Cells[0].Text;
string col = mydatagrid.Items[i].FindControl("Yourcontrol");
}
for (int i = 0; i < mydatagrid.Items.Count; i++)
{
string data = mydatagrid.Items[i].Cells[0].Text;
string col = mydatagrid.Items[i].FindControl("Yourcontrol");
}