Ttable=array[1..200,1..2] of string;
var
  frmemployee: Tfrmemployee;
  mytable:Ttable;//定义结构
procedure Tfrmemployee.Button7Click(Sender: TObject);//按按钮生成树结构
var
pnode:TTreeNode;
i:integer;
scode,sname:string;
ParentIndex,scode1,scode2,level:integer;
//定义变量
begin
aqryDepartment.Open;
//查找数据库
i:=1;
while not aqryDepartment.Eof do
begin
scode:=aqryDepartment.fieldByName('DepartmentNo').AsString;
sname:=aqryDepartment.fieldByName('DepartmentName').AsString;
scode1:=aqryDepartment.fieldByName('DepartmentNo').AsInteger;
scode2:=aqryDepartment.fieldByName('UpperDepartmentNo').AsInteger;
ParentIndex:=aqryDepartment.fieldByName('UpperDepartmentNo').AsInteger;
level:=aqryDepartment.fieldByName('level').AsInteger;
mytable[i,1]:=scode;
mytable[i,2]:=sname;
i:=i+1;
//生成父辈树
if (level=0) then
begin
treeview1.items.AddFirst(nil,sname);
end
else
//生成父辈树后的子项目....这里不知道怎么写了.....
begin
if(level<>0) then
//pnode:=treeview1.Items.Item[ParentIndex].Parent;
//到这里编译成功但是运行就报错
treeview1.Items.AddChild(,sname);
end;
aqryDepartment.Next;
end;
end;
数据库里面就是这样的....怎么办啊....求解
DepartmentNo    DepartmentName    UpperDepartmentNo    Manager    Address    Telephone    level
1    人事部    0    王小二    南昌市后墙路131号    6636000    1
2    保安部    0    王小三    南昌市后墙路131号    5986245    1
3    采购总部    0    王小四    南昌市后墙路131号    4581254    1
4    会计部    0    李小二    南昌市后墙路131号    3836916    1
5    营销部    0    张小二    南昌市后墙路131号    3816937    1
6    研发部    0    张小三    南昌市后墙路131号    5298347    1
7    统计部    0    胡小二    南昌市后墙路131号    2468531    1
8    计划部    0    张小药    南昌市后墙路133号    4562589    1
9    档案部    0    王小斯    南昌市后墙路131号    5647215    1
10    采购一部    3    撒小里    南昌市后墙路131号    9632587    3
11    采购二部    3    许司    南昌市后墙路121号    1234568    3
12    采购三部    3    扫小二    南昌市苏蒲路131号    5642157    3
13    售后服务部    13    王小欲    南昌市后墙路131号    3256489    13
14    维修一部    13    王小爱    南昌市后墙路131号    8521470    13
15    维修二部    13    王小饿    南昌市中山路161号    02156487    13