for each a as string in dtt.Getvalues("申请项目管理")
lst.clear
dim nd = trv.nodes.add(a,a)
for each s as string in dtt.GetComboListString("负责人","申请项目管理=\'" & a & "\'").split({"|",","})
if lst.contains(s) = false then
nd.nodes.add(s,s)
lst.add(s)
end if
next
next