Updating database using asp net

This tutorial shows you how to update (change) an existing database entry when you use ASP. It assumes you have completed the series through Entering Data by Using Forms Using ASP. What you'll learn: helper so that it displays an Edit link next to each movie: When you click the Edit link, it takes you to a different page, where the movie information is already in a form: You can change any of the values. The syntax for the new column might look a bit complex, but that's only because it puts together several elements. If you concentrate on just the Some background about how the grid works: the grid displays rows, one for each database record, and it displays columns for each field in the database record.When you submit the changes, the code in the page updates the database and takes you back to the movie listing. While each grid row is being constructed, the operator in the previous tutorial; it's an ASP.For many-to-many relationships, the Entity Framework doesn't expose the join table directly, so you add and remove entities to and from the appropriate navigation properties.The following illustrations show some of the pages that you'll work with.When a new course entity is created, it must have a relationship to an existing department.

(In Web Matrix, Intelli Sense can help you learn figure out the name, type, and order of the parameters.) As an alternative to passing values in order, you can use Named parameters are handy for a couple of situations, especially when a method takes many parameters.The approach shown was chosen because it's easy to implement and easy to understand. Get Html( table Style: "grid", header Style: "head", alternating Row Style: "alt", columns: grid. Here are a couple of examples: We didn't mention the issue when you first saw this code, but in each case, you're passing parameters to the methods in a specific order — namely, the order in which the parameters are defined in that method.For , if you mixed up the order of the values you pass, you'd get an error message when the page runs, or at least some strange results.A design surface and hundreds of controls and components let you rapidly build sophisticated, powerful UI-driven sites with data access.Visual Studio Express provides a free development tool that makes ASP.

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