title: Why does one project give "obsolete" warnings, while the other does not?
body: <p>I have two very similar vb.net projects. Both have recently been converted from .net 1.1 to 3.5.</p>
  
  <p>In one, the following code gives no warnings. In the other I get a warning when I try to set the parameters of the mysql command object:</p>
  
  <pre><code> Public Sub mySub(ByVal applid As Integer, ByVal text1 As String,ByVal text2 As String)
              Dim objMYSQL As New Classes.DataAccess.clsMysql
              Dim objConnection As New MySQL.Data.MySQLClient.MySqlConnection
              objConnection = objMYSQL.ConnectionNew("myDB")
              Dim objCommand As MySqlCommand
  
              Dim InsertSQL As String = ""
  
              InsertSQL = "insert into [myTable] ([text1],[text1])"
              InsertSQL = InsertSQL + " values(@txt1,@txt2)"
  
              objCommand = New MySQL.Data.MySQLClient.MySqlCommand(InsertSQL, objConnection)
              objCommand.CommandType = CommandType.Text
  
             'Set parameters
              objCommand.Parameters.Add("@txt1", text1) ' Warning here...
              objCommand.Parameters.Add("@txt2", text2) '...and here!
  
              objCommand.ExecuteNonQuery()
  
          End Sub
  </code></pre>
  
  <p>Here's the warning:</p>
  
  <blockquote>
    <p>Public Function Add(parameterName As String, value As Object) As
    MySql.Data.MySqlClient.MySqlParameter' is obsolete: 'Add(String
    parameterName, Object value) has been deprecated.  Use
    AddWithValue(String parameterName, Object value)'</p>
  </blockquote>
  
  <p>If I follow the instructions, and use "AddWithValue" instead, the warnings go. But I can't figure out why I don't get these messages in the first project. </p>
  
  <p>It seems there is something different in their configuration, but I can't figure out what. Both use the same version of mysql.data.dll. And both are configured to show warnings in the same circumstances via the project>properties>compile menu. Can anyone suggest where else to check?</p>