实现功能:当treeview节点改变时,将当前选中节点的子节点过滤出来,并在dbgrid中显示
procedure TfrmGraphDocManage.trvMainChanging(Sender: TObject; Node: TTreeNode;
var AllowChange: Boolean);
var
begin
inherited;
case Node.Level of
0: begin
TabSheet1.Caption := '管理部门';
actAdd.Enabled := True;
Qry1.Filter := ????;
end;
end;
procedure TfrmGraphDocManage.trvMainChanging(Sender: TObject; Node: TTreeNode;
var AllowChange: Boolean);
var
begin
inherited;
case Node.Level of
0: begin
TabSheet1.Caption := '管理部门';
actAdd.Enabled := True;
Qry1.Filter := ????;
end;
end;
Qry1.Filtered := False;
Qry1.Filter := '字段='+QuotedStr(Node.Text);
Qry1.Filtered := True;