I've been working on the One bizObj with multiple tables in Microsoft SQL. I've run across an interesting problem. When I make a change in the mmTextBox, it isn't saved. I'm viewing the data from the database correctly, but no data is changing.

As I started looking into what is going on, when I execute

     oAddress.SaveDataSet("Mailing")

I get an exception 'System.Data.ReadOnlyException' which indicates my table is read-only. In the business object I use

     this.FillDataSet(this.DataSet, "SELECT * FROM " + this.PhysicalDbcObjectName
          + " WHERE " + this.PrimaryKey + " = @PrimaryKey", tableName, 
          iD);

to open the dataset where iD is a IDbDataParameter array.

Also, I can't find a way to use the Entity with these tables. Is there a way to do something like

oAddress.DataSet.Tables["Mailing"].Entity.City?

Thanks for the help,
Jeff