How to use recursive last level, not the final one.
Is the last level.

 
DRS DataRow []=dt. Select (" frm_father_id='" + fatherid + "' "); 
Foreach (DataRow item in DRS) 
{
//recursive judgment finally level 1 
If (item!=DRS [DRS. Length - 1]) 

{
String text=item [r]. "frm_cname" ToString (); 
BarSubItem mitem=new BarSubItem (barManager1, text); 
Mitem. Tag=item; 
DevexpreeCreateSubMenuItem (mitem, item [r]. "frm_id" ToString (), dt); 
Menu. ItemLinks. Add (mitem); 

} 
The else 
{
String text=item [r]. "frm_cname" ToString (); 
BarButtonItem mitem=new BarButtonItem (barManager1, text); 
Mitem. Tag=item; 
Menu. ItemLinks. Add (mitem); 
Mitem. ItemClick +=new ItemClickEventHandler (DevExpressBindClickToInstinse); 

} 
} 
//for (int I=0; I & lt; DRS. Length; I++) 
//{
//if (I==DRS. Length - 1) 
//{
//string text=DRS [I] [r]. "frm_cname" ToString (); 
//BarSubItem mitem=new BarSubItem (barManager1, text); 
//mitem. Tag=DRS [I]; 
//DevexpreeCreateSubMenuItem (mitem, DRS [I] [r]. "frm_id" ToString (), dt); 
//menu. ItemLinks. Add (mitem); 

//} 
//else 
//{
//string text=DRS [I] [r]. "frm_cname" ToString (); 
//BarButtonItem mitem=new BarButtonItem (barManager1, text); 
//mitem. Tag=DRS [I]; 
//menu. ItemLinks. Add (mitem); 
//mitem ItemClick +=new ItemClickEventHandler (DevExpressBindClickToInstinse); 


//} 
//}