Defer the decision on what type of database to use and instead concentrate on user interface code.
#Factory connection code
Furthermore, what happens when you need to change from using the SqlClient to using ODBC? You could change the “using” statement and rename the lines from SqlConnection to OdbcConnection throughout your code, but this may waste time and is also prone to errors.Ī much more clear picture of this application could be made by leaving only user interface code inside the Page_Load() function. The core problem with the above code is not only that business logic may be mixed in with the user interface code (business logic would appear inside the “read database information” section), but that including database accessibility logic complicates the readability of the program. However, managing this code becomes a problem. A program will run just fine with this method. Notice in the above code, we’re referencing directly in the user interface code. Using (SqlDataReader MyReader = My Command.ExecuteReader()) Using (Sql Command My Command = new Sql Command( "SELECT * FROM Flowers", M圜onnection)) Using (SqlConnection M圜onnection = new SqlConnection(M圜onnectionString)) Protected void Page_Load(object sender, EventArgs e) NET application, this is similar to adding calls to SQLConnection in your Page_Load() function, as shown below.
Because of this, it’s not surprising that database code for populating the fields is often mixed directly in. Many developers begin by coding the user interface of a web application, as this helps move the project visually. NET web.config file, you can effectively change the type of database accessed by your application from MSSQL to Oracle to MySQL - all without a single change to the application code. By changing just a few lines in your C# ASP. In addition to adaptability, a database layer can also provide an on-the-fly means of changing connections strings and even the database type itself. NET application, you can greatly increase its flexibility and adaptability to change. Determining ways to minimize re-work in your web applications becomes a very important task and by adding a distinct database layer to your C# ASP. Requirements change, user interface pieces change, platforms change, and databases changes.
#Factory connection software
When creating software for clients, even the beginner developer recognizes the frequency of change. NET web application be using a well-defined and loosely-coupled database layer. While this certainly works (and provided you close and dispose of all connections when you’re done with them), you achieve a far greater amount of flexibility with your C# ASP. Often, developers not familiar with design patterns will use a simple design for making database calls, which relies on calling database functions straight from the user interface. The web application accesses various tables, stored procedures, executes SQL script, and retrieves records. NET web application which utilizes a database is a common and straight-forward task for developers.
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