Solved

How to implement exception handling in a 3 tier web app

Posted on 2011-02-10
3
392 Views
Last Modified: 2012-05-11
Hi,

I am new to the 3 tier development architecture and am looking to see what is the most common and efficient way to create error handling. Is it by creating a custom error handling object? Any help is much appreciated!
0
Comment
Question by:bschave2
3 Comments
 
LVL 18

Accepted Solution

by:
Anil Golamari earned 500 total points
ID: 34865532
0
 
LVL 52

Expert Comment

by:Carl Tawn
ID: 34865607
It depends entirely on what you need to do and what you need to report to the upper tiers. Trapping exceptions where they happen is usually best, and you will of course want to log them. You can then either re-throw the exception to, for example, let your UI know something went wrong. But whether you rethrow the original exception, or a more generic custom exception type is up to you.
0
 

Author Comment

by:bschave2
ID: 34866854
How can I pass the exception back to the UIl?

well say in the UIL I call an object in the UIL

BLL customers = new BLL();
customers.GetCustomers(gvCustomers);

in the BLL method I get the gridview:

public void GetCustomers(GridView gvCustomers)
    {

        DLL getGV = new DLL();
        gvCustomers.DataSource = getGV.getDS("getCusts");
        gvCustomers.DataBind();
    }

And in the DLL i have the method as

public DataSet getDS(string ProcName, SortedList<string, string> sqlParams)
    {
        try
        {
            getCon();
            cmd = new SqlCommand(ProcName, con);

            //Looping through params.
            foreach (KeyValuePair<string, string> Param in sqlParams)
            {
                cmd.Parameters.AddWithValue(Param.Key.ToString(), Param.Value.ToString());

            }
            da = new SqlDataAdapter(cmd);
            cmd.CommandType = CommandType.StoredProcedure;
            ds = new DataSet();
            da.Fill(ds);

            closeCon();
        }
        catch (SqlException sqlex)
        {
            throw new Exception(ex.message);
        }

        return ds;
    }
0

Featured Post

Free Tool: Site Down Detector

Helpful to verify reports of your own downtime, or to double check a downed website you are trying to access.

One of a set of tools we are providing to everyone as a way of saying thank you for being a part of the community.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Introduction Hi all and welcome to my first article on Experts Exchange. A while ago, someone asked me if i could do some tutorials on object oriented programming. I decided to do them on C#. Now you may ask me, why's that? Well, one of the re…
A quick way to get a menu to work on our website, is using the Menu control and assign it to a web.sitemap using SiteMapDataSource. Example of web.sitemap file: (CODE) Sample code to add to the page menu: (CODE) Running the application, we wi…
Established in 1997, Technology Architects has become one of the most reputable technology solutions companies in the country. TA have been providing businesses with cost effective state-of-the-art solutions and unparalleled service that is designed…
Email security requires an ever evolving service that stays up to date with counter-evolving threats. The Email Laundry perform Research and Development to ensure their email security service evolves faster than cyber criminals. We apply our Threat…

840 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question