When the database returns the results, LINQ to SQL translates them back to objects that you can work with in your own programming language.
Developers using Visual Studio typically use the Object Relational Designer, which provides a user interface for implementing many of the features of LINQ to SQL.
Getting Started Provides a condensed overview of LINQ to SQL along with information about how to get started using LINQ to SQL.
Programming Guide Provides steps for mapping, querying, updating, debugging, and similar tasks.
The principal scenario in LINQ to SQL for allowing partially trusted callers is to enable the LINQ to SQL assembly to be accessed from Web applications, where the configuration is Medium. If it has changed, a conflict occurs and your application must resolve it.
NET Framework assemblies marked with the Allow Partially Trusted Callers Attribute attribute. NET Framework are intended for use only by fully trusted code. The original data is used to check against the current database state to assert that it is in fact still unchanged.
The following sections answer some common issues that you might encounter when you implement LINQ. For more information, see Learning by Walkthroughs. I made a change to data in the database, but when I reran my application, the change was no longer there. Make sure that you call Submit Changes to save results to the database. In common scenarios where each object is processed only one time, the streaming model is superior in both Q.
LINQ Describes LINQ technologies for Visual Basic users. Linq Data Source Technology Overview Describes how the Linq Data Source control exposes Language-Integrated Query (LINQ) to Web developers through the ASP. Note The feedback system for this content will be changing soon. If content within a comment thread is important to you, please save a copy.
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I can't imagine WHY it would be different, but it's possible. Thanks so much for your time and appreciate your patience. Since it is not fixed, I am not marking it as answer so as not to mislead others.
It's stuff you need to learn, and the tutorials do a great job of teaching them. I checked product_data and the values are updated in the qry. ) that the code to update in VB is different from C#.