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Wednesday, July 08, 2009

XML Literals: Reading an XML File

by Deborah Kurata via Deborah Kurata on 7/8/2009 9:28:23 PM

In a prior post here , I created an XML file using VB 9 (Visual Basic 2008/.NET Framework 3.5). This post demonstrates how to read that file and reconstitute the list of customers. This code reads the XML into an XElement: Dim customerXml As XElement = XElement.Load("customers.xml") This code processes the XML and rebuilds the list of customers: ' Repopulate the business objects Dim customerList as New List(Of Customer) For Each c As XElement In custom ... [ read more ]

DAL: Using Stored Procedures

by Deborah Kurata via Deborah Kurata on 7/8/2009 5:21:38 PM

A stored procedure is a set of structured query language (SQL) statements that provide a particular operation on the data (or structure) of a database and are stored within the database. For example, a retrieval stored procedure contains a Select statement to select a set of data from one or more tables in a database and return the results. CREATE PROCEDURE dbo.CustomerRetrieveAll AS SELECT Cust ... [ read more ] 3 comment(s)

Implementing Validation in WPF on Entity Framework Entities

by Beth Massi via Beth Massi on 7/8/2009 12:14:07 AM

I’ve blogged before about implementing validation on LINQ to SQL classes as well as how to customize the display of error messages in WPF . In this post I want to show how you can use these same techniques to validate entities coming from the Entity Framework (EF). Like LINQ to SQL classes, Entity Framework entities are implemented as partial classes so that you can extend them with your own code on top of the code that the designers generate for you. You can extend EF entities in a simila ... [ read more ] 6 comment(s)

© 2005 Serge Baranovsky. All rights reserved.
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