Thanks Gayan. El jue, 27-10-2005 a las 09:09 +0600, Gayan Perera escribió: > dear frnd, > as to my knowlage yes you can and if you don't have any other option > this will be what you have to use :D > > best regards, > Gayan. > > On 10/27/05, Carlos Ble <[EMAIL PROTECTED]> wrote: > Hi > I tried to ask for a null DataSet to determine when a SELECT > query > return nothing. DataSet are filled with NpgsqlDataAdapter.Fill > method. > This method never returns null. So you can't ask > if (dataset == null). > Searching for DataSet.Tables property I found this from msdn: > A DataRowCollection that contains DataRow objects; otherwise a > null > value if no DataRow objects exist. > > http://msdn.microsoft.com/library/default.asp?url=/library/en-us/cpref/html/frlrfsystemdatadatatableclassrowstopic.asp > > So I tried with dataset.Tables == null but isn't null, because > in > DbDataAdapter, an empty table with real name extracted from > SetupSchema > are added to dataset. > The solution is to ask > if (dataset.Tables[0].Rows.Count == 0) > > Is this a good mechanism? > Could this code run in .Net too? > > > > > > > > > > > > _______________________________________________ > Mono-list maillist - [email protected] > http://lists.ximian.com/mailman/listinfo/mono-list >
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