[Firebird-net-provider] Bug in Provider 1.5 Beta 4 (.NET 1.1)

[Pierre A. <pie...@op...>]

Hello Carlos,

I am still using the same code as I was on October 6th as I reported
and proposed a fix, since following code crashed:

   command.CommandType = System.Data.CommandType.Text;
   command.CommandText =
    "CREATE TABLE A(F1 INTEGER NOT NULL, F2 INTEGER NOT NULL);" +
    "ALTER TABLE A ADD CONSTRAINT PK_A PRIMARY KEY (F1, F2);";
   command.Transaction = my_transaction;

   reader = command.ExecuteReader ();

   for (;;)
   {
     while (reader.Read ())
     {
       System.Console.Out.WriteLine ("{0} columns found.",
                                     reader.FieldCount);
     }
     if (reader.NextResult () == false)
     {
       break;
     }
   }
   reader.Close ();

This does no longer work. I have a crash in FbCommand.cs,
at line 537, while executing the second loop in my for(;;)
block, on reader.NextResult.

The call trace is:

FbCommand.InternalPrepare
FbCommand.NextResult
FbDataReader.NextResult

What happens, is that in FbCommand.cs:

  namedParameters = search.Matches(this.commands[actualCommand]);

I have actualCommand == 2, this.commands[2] == null, and the
regex 'search.Matches(null)' cannot be used ! This throws an
exception (Value cannot be null).

What is the best way to fix this ? Add a test to whether the
argument is null, or shouldn't this code get executed ?

Kind regards.

    Pierre