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Filling combobox from oracle database

I am trying to fill a combobox from a database. I Want the ID to the be the ValueMember and the NAME to be the DisplayMember. The code below just adds however many rows the query finds, but they do not display any data.

Private Sub FillStoreList()
        Dim connectionString As String = GetConnectionString()
        Dim queryString As String = _
         "SELECT ID, NAME FROM CURRENCY ORDER BY NAME"
 
        Using connection As New OracleConnection(connectionString)
            Dim command As OracleCommand = connection.CreateCommand()
            command.CommandText = queryString
            Try
                connection.Open()
                Dim dataReader As OracleDataReader = _
                 command.ExecuteReader()
                While dataReader.Read()
                    '                    cbStoreList.Items.Add("")
                    cbStoreList.DisplayMember = dataReader(1)
                    cbStoreList.ValueMember = dataReader(0)
                    cbStoreList.Items.Add("")
 
                End While
                dataReader.Close()
 
            Catch ex As Exception
                Console.WriteLine(ex.Message)
            End Try
        End Using
 
    End Sub

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Éric Moreau

if you find a combo (that means using DisplayMember and ValueMember) you don't need to loop through your datasource to add them one line at a time.

have you tried:

Dim dataReader As OracleDataReader = command.ExecuteReader()
cbStoreList.DisplayMember = dataReader(1)
cbStoreList.ValueMember = dataReader(0)

I am not sure that a DataReader can be used as input for a combo.

revo1059

ASKER

I tried that, the combobox is just empty when I do that

ASKER CERTIFIED SOLUTION

Wayne Taylor (webtubbs)

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Éric Moreau

wayne has a good point, the DataSource property was never set.

revo1059

ASKER

Thanks so much, I knew it was something stupid like that