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Data Points: Exception-handling Techniques

Posted By:      Posted Date: August 21, 2010    Points: 0   Category :ASP.Net

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Data Points: SQL Server 2005 XML Support, Exception Handling, and More


SQL Server 2005 includes several important improvements to the Transact-SQL (T-SQL) language. One added feature is a new kind of trigger that fires when data definition language (DDL) statements run.

John Papa

MSDN Magazine May 2006

Data Points: Handling Data Concurrency Using ADO.NET, Part 2


Enterprise development has been moving towards a discon-nected model in recent years and ADO. NET development is no exception. While the disconnected model of the ADO. NET DataSet offers great flexibility, that adaptability also means looser control over data updates than you get with a connected data access model.

John Papa

MSDN Magazine October 2004

Data Points: Handling Data Concurrency Using ADO.NET


One of the key features of the ADO. NET DataSet is that it can be a self-contained and disconnected data store. It can contain the schema and data from several rowsets in DataTable objects as well as information about how to relate the DataTable objects-all in memory.

John Papa

MSDN Magazine September 2004

Data Points: Techniques in Filling ADO.NET DataTables: Performing Your Own Analysis


How do you know which technique is best for retrieving data and populating a DataSet in ADO.NET?. Since the Microsoft .NET Framework offers so many choices on how to write the code, many developers are now taking a close look at the different options. See what they are.

John Papa

MSDN Magazine June 2003

Data Points: Techniques for Managing Rowset Paging


There are a number of ways to handle paging in Web applications. This month I'll examine several paging techniques and weigh their pros and cons. John Papa discusses how to manage paging and caching issues through the lower tiers of an n-tiered architecture, including how to make SQL Server manage the paging on your app's behalf.

John Papa

MSDN Magazine May 2003


Every self-respected programmer should include exception handling techniques. Sometimes your application will generate an error. Regardless of who was responsible for this error, the programmer or the user, it is up to the first to include the necessary exception handling techniques to keep his/her program from crashing. The .Net environment provides useful techniques for avoiding disastrous errors such as try-catch statements and user-defined exceptions.

Global Exception Handling with ASP.NET

After your global exception handler has done its work, you'll want to redirect the users of your website to a friendly page that tells them that something has gone wrong, and then provide them with customer support information as well as a link back to your web application's home page.

SQL Server 2005 Try and Catch Exception Handling

I'm pretty excited to see that there is some real error handling for T-SQL code in SQL Server 2005. It's pretty painful to have your wonderfully architected .NET solution tainted by less-than-VBScript error handling for stored procedures in the database. The big difference being the addition of TRY..CATCH blocks. Let's take a look:

Error while using exception handling block el 4.1


Hi Folks,


i am trying to use tyhe exception handling block of Enterprise library 4.1.


I just createda polisy and used IndexOutOfRangeException and added a replace handler and a logging handler to it.

I am using the NotifyRethrow PostHandlingAction to the exception.


During runtime I am getting an exception on the HandleException event, The exception is added below:



Object reference not set to an instance of an object.

Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.

Exception Details: System.NullReferenceException: Object reference not set to an instance of an object.

Source Error:

Line 42:             catch (Exception ex)
Line 43:             {
Line 44:                 bool reThrow = ExceptionPolicy.HandleException(ex, "ReplacePolicy");
Line 45:         

Data Points: Deny Table Access to the Entity Framework Without Causing a Mutiny


Julie Lerman shows database administrators how to limit access to databases from the Entity Framework by allowing it to work only with views and stored procedures instead of tables-without impacting application code or alienating developers.

Julie Lerman

MSDN Magazine August 2010

Data Points: Windows Azure Table Storage - Not Your Father's Database


Let go of your traditional relational database thinking if you want to understand how Windows Azure Table storage works, says Julie Lerman. Luckily for you, she's done the hard work to grasp the new concepts and help you get up to speed.

Julie Lerman

MSDN Magazine July 2010

Data Points: LINQ Projection Queries and Alternatives in WCF Services


LINQ's ability to project randomly shaped data into anonymous types can be a blessing and a source of frustration, says Julie Lerman. It's great when you just need to grab a special view of your data, but it can be problematic in certain circumstances. She explains what the limitations are and how to get around them.

Julie Lerman

MSDN Magazine May 2010

Data Points: Precompiling LINQ Queries


Did you know that by precompiling LINQ queries you might actually be degrading your app's performance if you're not careful? Julie Lerman explains how to ensure you're not re-precompiling queries each time and losing the expected performance benefits across post-backs, short-lived service operations and other code where critical instances are going out of scope.

Julie Lerman

MSDN Magazine March 2010

Data Points: Data Validation with Silverlight 3 and the DataForm


In this month's column, John Papa shows you how the DataForm control works and how it can be customized.  He presents in detail a sample application that uses several features to bind, navigate, edit and validate data using the DataForm.

John Papa

MSDN Magazine October 2009

Data Points: Data Performance and Fault Strategies in Silverlight 3


In this month's column, the author shows how binary encoding works, the effect it has on an application's performance, and how it behaves by demonstrating it in action.

John Papa

MSDN Magazine August 2009

Data Points: Building An Out-of-Browser Client With Silverlight 3


Silverlight 2 applications are restricted to running inside a browser. However, Silverlight 3 applications can run inside the browser or out. Here we build a social networking app as a standalone Silverlight 3 application.

John Papa

MSDN Magazine June 2009

Data Points: Using Silverlight 2 With ADO.NET Data Services


ADO.NET Data Services and Silverlight make a powerful combination, but to make them work well together, there are a few things you need to understand. Here, John Papa explains.

John Papa

MSDN Magazine April 2009

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