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Creating ADO.NET Transaction in N-Tier architecture in C#

Posted on 2006-11-22
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Last Modified: 2008-02-07
How do we create ADO.NET Transaction in N-Tier architecture in C#

Like what goes in User Interface layer , what in the middle tier...

My idea is two have sql statements like calling in 2 stored procedures separtely and rollback the total transaction if any one of the stored procedure fails...

I kind of know what to do with only user interface layer but i dont know how to do in N-tier architecture..

Please give me a example of how it can be done this way...

Thanks,
prasad

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Question by:prasadrao007
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3 Comments
 
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Accepted Solution

by:
kraffay earned 500 total points
ID: 17998152
1.  Get the free Enterprise Library from Microsoft (http://msdn.microsoft.com/library/?url=/library/en-us/dnpag2/html/EntLib2.asp).  This will give you the data layer.

2.  Implement transactions in the middle tier per the quick start examples, like so (I am using inline sql here, but the EL works fine with SPs):

Database _db = DatabaseFactory.CreateDatabase("LocalSQLServer");
using (DbConnection connection = _db.CreateConnection())
        {

            connection.Open();
            DbTransaction transaction = connection.BeginTransaction();

            try
            {
                String SQL;

                SQL = "UPDATE CategoryLog" +
                        " SET CategoryID = " + CategoryID +
                        " WHERE CategoryLogID =" + CategoryLogID;

                _db.ExecuteNonQuery(CommandType.Text, SQL);


                SQL = "UPDATE Log" +
                        " SET EventID = " + txtEventID.Text + "," +
                        " Severity = '" + txtSeverity.Text + "'," +
                        " MachineName = '" + txtMachineName.Text + "'," +
                        " ProcessID = " + txtProcessID.Text +
                        " WHERE LogID = " + LogID;

                _db.ExecuteNonQuery(CommandType.Text, SQL);
                return true;
            }
            catch
            {
                transaction.Rollback();
                return false;
            }
0
 

Author Comment

by:prasadrao007
ID: 18198202
I didnt know that i had to close the question. Sorry abt that..
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