如何使用记录指针

[linkyou]

SupplyTypeRec=record
Code:^integer; //用于供应商类别编号
Name:^String; //用于供应商类别名称
end;
请问在这里我
obj:=TZXBase.Create;
mylist:=obj.FControlList;
obj.DDX(label1,'str');
obj.DDX(edit1,'str');
obj.DDX(edit3,'str');
obj.DDX(edit2,'int');
obj.DDX(combobox1,'int');
obj.UpdateData(True) ;
Contrl:=Mylist[0];//前面的不用管
new(supply.name);//这里使用肯定有问题，请问问题在哪里？？
Supply.Name:=@(contrl.varname);
showmessage(supply.Name^);

[qybao]

new(supply.name);//这里使用肯定有问题，请问问题在哪里
应该没什么问题,只要Supply是SupplyTypeRec记录类型的变量

[1shao]

借鉴一下吧，用法全在下面

type
ptreerec=^treerec;
treerec=record
id:integer;
name:string;
end;


procedure TformTBDB.initzttree;
var
rootnode,tmpnode,childnode:ttreenode;
j:integer;
ptree:ptreerec;
CanAdd:boolean;
nowreccount:integer;
begin
if clientdataset1.recordcount>0 then begin
nowreccount:=clientdataset1.recordcount;
if nowreccount=lastreccount then exit;
lastreccount:=clientdataset1.RecordCount;
CanAdd:=true;
clientdataset1.First;
while not clientdataset1.Eof do begin
tmpnode:=nil;
for j:=0 to treeview_ywzt.Items.Count-1 do begin
if (clientdataset1.FieldByName('sjdxno').AsInteger=ptreerec(treeview_ywzt.Items[j].Data)^.id ) then
tmpnode:=treeview_ywzt.Items[j];
if (ptreerec(treeview_ywzt.Items[j].Data)^.id = clientdataset1.FieldByName('dxno').AsInteger) then
CanAdd:=false;
end;
if CanAdd then begin
if tmpnode<>nil then begin
childnode:=treeview_ywzt.Items.AddChild(tmpnode,trim(clientdataset1.fieldbyname('dxmc').asstring));
childnode.StateIndex:=1;
new(ptree);
ptree^.id:=clientdataset1.fieldbyname('dxno').asinteger;
ptree^.name:=clientdataset1.fieldbyname('dxmc').AsString;
childnode.Data:=ptree;
if clientdataset1.FieldByName('dxsjflag').asstring<>'1' then
childnode.StateIndex:=-1;
clientdataset1.Delete;
end;
end else
clientdataset1.Delete;

clientdataset1.next;
end;
initzttree;
end;
end;