We are now are ready with our SQL Azure
database server and database. So we can proceed with connecting with the
database. We can use our ADO.NET Connection class to connect to the database.
The steps involved here are:
The steps are following.
Get the Database Server Name
Sign in to the windows azure portal and click on the Database item from the left
Then expand the subscriptions item and select the database server name. From the
right hand side properties window, you can get the Fully qualified DNS Name of
the server as shown in the figure below.
Copy your server name. Now open Visual Studio and create a new Azure project and
add a web role into it.
Add a SqlDataSource component into it from the toolbox. In the properties window
of the control, click on the ConnectionString property. From the drop down list
select New Connection. You will be prompted with the following dialog.
Select Microsoft SQL Server from the list above and click continue. Now the Add
Connection dialog will appear as shown below. Enter the following
(Remember to check the Use SQL Server
Authentication check box)
Now select the database we created and press Test Connection button. If you get
the succeeded message box, you have a valid SQL Azure connection. Good Job!
Now press OK on the Add Connection dialog and from the properties window, you
can collect the connection string as shown below. Connect using SqlConnection class
Now we have the valid connection string, we can try connecting through code.
Open the code view of Default.aspx from the web role project. Add the following
code into it. (Resolve the namespaces) protected
connectionString = "your
connection string here";
connection = new
(connection.State == System.Data.ConnectionState.Open) Label1.Text = "Connection
else Label1.Text = "Connection
Open the design view of Default.aspx and add a label control into it. You may
remove the data source control from there.
Now execute the application and you can see the result as shown below.
If the message is Connection Succeeded you are having a valid connection
established with SQL Azure.
Collecting Connection String from Windows Azure Portal
We can also get the connection string from the azure portal by selecting the
database and clicking the View connection string button.
Then the following dialog box shows the connection string. The first one ADO.NET
represents our needed connection string. Summary
In this article we have seen how to get the database server name, get the
connection string and connect it using c# code.
Jean Paul is a Developer plus Architect working on Microsoft Technologies for the past 12 years. He is very much passionate in programming and his core skills are SharePoint, ASP.NET & C#.
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