1 delphi
我使用delphi的ttreeview作为'选项'菜单.我将如何在运行时选择下一个节点,如上一个和下一个按钮?我尝试了getprev和getnext方法,但没有运气.
在这里你有'下一步'的行为.对于'上一页',我将为您留下锻炼:--)
procedure TForm8.btn1Click(Sender: TObject);
var
crt: TTreeNode;
begin
with tv1 do //this is our tree
begin
if Selected=nil then
crt:=Items[0] //the first one
else
crt:=Selected.GetNext; //for previous you'll have 'GetPrev'
if crt<>nil then //can be 'nil' if we reached to the end
Selected:=crt;
end;
end;
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HTH