I have this simple code:

 ListBox1.DataSource = MGlobals.UserList

ListBox1.DisplayMember = "Nome"

ListBox1.ValueMember = "ID"

when setting .ValueMember i get "

  Message=Não é possível vincular ao novo membro de apresentação.
Nome do parâmetro: newDisplayMember


debugging i found ListBox1.ValueMember holding "" and ListBox1.DisplayMember holding "ID". Can anyone help me? Thanks.

1 Answers

Misael Moneró Thompson On

Assuming your datasource Does have the Nome and ID columns, you could try changing the order to something like this:

ListBox1.DisplayMember = "Nome"
ListBox1.ValueMember   = "ID"
ListBox1.DataSource    = MGlobals.UserList