[Firebird-net-provider] [FB-Tracker] Created: (DNET-1039) FbDataAdapter doesn't fill MaxLength-Property of DataColumn of varchar type

[Baldur F. (J. <tr...@fi...>]

FbDataAdapter doesn't fill MaxLength-Property of DataColumn of varchar type
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                 Key: DNET-1039
                 URL: http://tracker.firebirdsql.org/browse/DNET-1039
             Project: .NET Data provider
          Issue Type: Bug
          Components: ADO.NET Provider
    Affects Versions: 7.10.1.0
         Environment: Windows 10, Visual Studio 2019, Firebird 3.0
            Reporter: Baldur Fürchau
            Assignee: Jiri Cincura


In the previous used Version 6.8.0.0 the fbDataAdapter Fill-Method create string columns correct with MaxLength-Property.
Now in 7.10.1.0 the MaxLength is always -1!

Workaround:
To solve the problem i must now load the columns schema to set the property by myself.

                 DataTable xTable = new DataTable();
                 using (DbCommand xCommand = GetCommand(xConnection, sql))
                    {
                        using (DbDataAdapter adapter = new FbDataAdapter(xCommand as FbCommand)) 
                        {
                            adapter.Fill(xTable);
                        }
                    }
  
I must du this in all my applications because the 7.10 is faster than 6.8 and i need the fastest version for a datawarehouse.

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