How to make database connection persistent across webforms - asp.net

Question

I am writing an application using ASP.NET webforms with login dialog. After successfull authentication the connection is opened, but connection object is not visible from other webforms. Is there any way to make it persistent and accessible (in some server session objects), or is it commonly done in another way ? Any tips appreciated.

Answer 1

The best way is to open/close the connection where you want to use it. Don't share it and never use a static connection in ASP.NET which is a multi-threading environment. You should use the using statement for all objects implementing IDisposable which ensures that all unmanaged resources are disposed. This will also close the connection, even on error:
using(var con = new SqlConnection("connection string here"))
{
// do something ...
}
You don't need to be afraid that the physical connection must be opened/closed everytime. The .NET connection pool will handle that for you. Related

Answer 2

A simple example.
Set up a class to handle the SqlConnection object (or whatever DB you're using):
DbConnectionProvider.cs
using System.Data.SqlClient
public class DbConnectionProvider
{
public static SqlConnection GetDbConnection()
{
return new SqlConnection("MyConnectionString");
}
}
Then from all classes that needs to use the database
ApplicationClass.cs
using System.Data.SqlClient
public class ApplicationClass
{
private void GetSomeDbWorkDone()
{
using(SqlConnection Conn = DbConnectionProvider.GetDbConnection())
{
//Do some fancy database operations here
}
}
}
This way, if you need to change your Connection details or do something else regarding the SqlConnection object, you only need to do it once and not everywhere in your code.