Problem updating the data tables in dataset in windows console application vs 2005

Question

Hi,

I am new to .NET.I am developing a console application.I am using multiple class files to store different methods, among those one is a file with all database connections & methods. In this class file I have declared and initialized a public dataset. I am trying to insert 3 tables into this dataset. I am calling database methods from another class file.I am being able to do everything.But when I  try to read the data tables of this dataset from Main Program. Its showing only first table.It doesn't show up the remaining two table names.Is it because of calling that class from another class file? I would be able to read the remaining two tables from the class where I had called those methods.

Ex: Let's Say I have two class files dbconn, validate and my main program Program

I have declared dataset in dbconn and wrote some methods to read data from database. I have called those methods from validate class and Program by creating instance. In my Main Program I have called dbconn and created one data table and from validate created two data tables.Now when I try to access the dataset tables in Main program, it is showing up only one data table which I have created from this program. Similarly validate doesn't show up the first data table. 

But I need to access all the 3 data tables from Main Program.Please let me know the solution.

Thanks,

Satwika