procedure LoadTree(treeDB:TDBDataSet);//初始化树
procedure UpdateTree(curNode:TTreenode; nodeTxt:string; state:string);//更新树
function GetNodeLevel(sFormat,sCode:string):integer; //获得节点层数
function GetNodeItem(sCode:string):integer;//获得item
{ Public declarations }
end;
const
CTreeCodeFormat=\'122222\';
cTreeMaxLevel=6;
CTreeRootTXT=\'所有图书\';
var
tsgzlfrom: Ttsgzlfrom;
_err:integer;
curUser:string[10];
mystate:string;
gNodeId:string;
gNodelevel:integer;
gNode:TtreeNode;
mynode:array[0..6] of TTreenode;
i,Already,CurMode:integer;
currow:integer;
iniFile:string;
HasSub:String;
level:Integer;
implementation
uses bgNewunit;
{$R *.DFM}
procedure TtsgzlFrom.LoadTree(treeDB:TDBDataSet);//初始化树
var curID,nodeTxt:string;
level,num:integer;
begin
//初始化变量
Screen.Cursor:=crHourGlass;
tree.Enabled:=True;
tree.Items.Clear;
level:=1 ;
num:=1;
tree.items.clear;
//设置根节点
mynode[level]:=Tree.items.add(Tree.Topitem,cTreeRootTxt);
mynode[level].ImageIndex:=0;
mynode[level].SelectedIndex:=1;
//遍历数据表，利用编码字段记录排序规律，依次添加树节点
with TreeDb do
begin
try
if not Active then open;
first;
while not Eof do
begin
curID:=trim(FieldByName(\'tsglb\').AsString);
nodeTxt:=curID+\'-\'+trim(FieldByName(\'tsglbn\').AsString);
level:=GetNodeLevel(cTreeCodeFormat,curID);
//这里返回代码的层次数
if level>0 then
责任编辑：小草
