Question

I am working on a Windows application.
I have a form with labels like

HOST:
UserName:
Password:

How I can declare the connection string in the app.config file so that it takes the initial catalog, userID and password as variables that I can use in further to check the user whether which database the user wants to get connected with the entered userID and password.

I am using SQL Server 2008 and Visual C# 2008 Express Edition.

Answer 1

There is a <connectionString> section to the app.config file.

<connectionStrings>
    <add name="MyDatabase" connectionString="Data Source=sqlserver,1433;Network Library=DBMSSOCN;Initial Catalog=MyDatabase;User ID=xxx;Password=xxxx;" />
  </connectionStrings>

For your Host, User ID and Password, you can define these in the <appSettings> section.