ASP .NET 2.0 SQL Select Command Problem

I have the following code:

Protected Sub btnSubmit_Click(ByVal sender As Object, ByVal e As System.EventArgs)
        Dim DSflgasgiveaway As SqlDataSource
        Dim SelectArgs As SqlDataSourceCommandEventArgs
        DSflgasgiveaway.ConnectionString = ConfigurationManager.ConnectionStrings("flgasgiveawayConnectionString1").ToString
        DSflgasgiveaway.SelectCommandType = SqlDataSourceCommandType.Text
        DSflgasgiveaway.SelectCommand = "Select * from flgasgiveaway WHERE ItemCode = @itemcode"
        DSflgasgiveaway.SelectParameters.Add("itemcode", txtCode.Text)
       
        Dim rowsaffected As Integer = 0
       
        Try
            rowsaffected = DSflgasgiveaway.Select()
           
        Catch ex As Exception

        End Try
    End Sub

I have the following errro message when i hover my mouse over the select statement:

'Argument not specified for parameter 'arguments' of Public Function Select(arguments As System.Web.UI.DataSourceSelectArguments) As System.Collections.IEnumberable'

What am I missing?????  

Thanks in advance!