Three tier architecture in c#

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Hi
I using C# and developing a windows forms project.
I am using 3 tier architecture (UI layer, Business Logic, Data Access).

I have a table named "Customer" of having around 100 fields in it.

I want to add new Customer, am assigning all these 100 fields into the Business Layer "Customer Class", then calling a "insertCustomer" method of business layer.

Now, from business layer, after all validations, how can i pass the whole "customer" class together into Data access layer, so that i can make the actual insert query with all field values?.

or do i need to assign each field into variables and pass these variables as parameters from business layer to data access layer?..

I hope, there must be some another easy way.
Kindly guide me.
Thanks
Jim

What I have tried:

I have tried instantiating the class in the business layer and pass it to data layer.
but not working as it creates new instance.

Posted 29-Feb-16 4:54am

jim1972

Updated 29-Feb-16 22:40pm

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Comments

PIEBALDconsult 29-Feb-16 11:20am

That's not three-tier; those are layers, there's a difference.
You would have to Improve Question to include some code, whatever problem you're having isn't clear.

Sascha Lefèvre 29-Feb-16 11:37am

What stops you from simply passing the Customer-object to the DAL?

PeejayAdams 4-Mar-16 6:47am

There is something very wrong with your database design if you have a hundred columns in a table. If you don't address that first, anything you try to do in code is going to be a nightmare. Look at the basics of RDBMS and normalization before you go any further.

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Bandaru Laxman · Answer 1 · 2016-02-29T22:40:00

C#

Hi Jim,
    
    You just need to pass the customer object to your Data Access Layers method.

public class Customer
{
   field1; field2;.... field100;
}

Business layer:
public someMethod{
Customer objCust = new Customer ();
objCust.field1 = val1;
.
.
.
objCust.field100 = val100;

DAL.test(objCust);
}


DAL:

public test(Customer objCust)
{
   Your Database Operations...
}