Datacontext submitchanges not updating database erwachsene dating site
Note that if a Product’s property values weren’t changed by the property assignments above, then the object would not be considered changed and LINQ to SQL would therefore not execute an update for that product back to the database.
SQL-to-LINQ has essentially been depreciated and replaced with the Entity Framework. Basically because I've been working through several books on the subject of ASP. It is only after I finish these books, which I thought were fairly up to date, that I learn that they aren't. NET 5 that describe how it is a totally new approach...
Regardless, why can you not use the Sql Data Source for all of your data? So for now, I'm not living on the bleeding edge of technology and I'll have to stick with what these books are teaching because I need to get something functional developed just to prove to management that I can. which suggests that more of what I've been working to learn over the past 3 months is about to be made obsolete.
In Part 2 of this series I walked through how to create a LINQ to SQL class model using the LINQ to SQL designer that is built-into VS 2008.
Below is a class model created for the Northwind sample database and which I’ll be using in this blog post: When we designed our data model using the LINQ to SQL data designer above we defined five data model classes: Product, Category, Customer, Order and Order Detail.
I could then write the below code to loop over unpopular, expensive products and set the “Reorder Level” property of them to zero: When I call northwind.
Submit Changes() above, LINQ to SQL will calculate and execute an appropriate set of UPDATE statements to modify the products who had their Reorder Level property changed.So my new year's resolution for 2015 was to keep my big fat mouth shut and quit volunteering things...however, I feel the need to demonstrate that I can build a simple CMS cause I know I'll break that resolution before the first quarter is done.I'll rethink my approach to this specific page and go with all Sql Data Source and see what happens. Pete There are also a lot of resources from Microsoft, particularly this one: Also note that a lot of these resources will focus on ASP.Meanwhile, I'm looking for a good book for beginners on the subject of the Entity Framework... NET MVC as the two have integrated features within Visual Studio, especially EF 6 with MVC 5. NET MVC project I'm facing a very weird problem: when I call the Submit Changes method of the Data Context class, nothing updates in the database.Tags: Adult Dating, affair dating, sex dating