Updating data using linq mandating e verify
This will create all the mappings and settings for each table and their entities.For files the database connection string is defined in the web.config file as: We can use a connection string from the web.config file or we can pass a connection string as a parameter in the constructor of the Data Context class to create an object of the Data Context class.Basically I’m going to show you the basic way on how to edit and delete data from the form and update the database using L2S technology.Since this is a continuation of my previous example so I would suggest you to refer that first before you go any further.After clicking the Add button the Context Data file is created.Now we should drag all the tables onto the left-hand side of the designer and save (as shown in the following figure).
In this file designer view we drag and drop the COURSE table from the Server Explorer.
Over the last few weeks I've been writing a series of blog posts that cover LINQ to SQL.
LINQ to SQL is a built-in O/RM (object relational mapper) that ships in the .
If you look at my previous example you will notice that the html markup above is a bit similar.
The things that are added above are Buttons for Edit, Delete, Update and Cancel which is by default set their enable property to false, this is to prevent users from doing certain actions when the page is loaded in the browser.
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Please use the database structure given below, if you want to try the following examples directly.