Can I Add ConnectionStrings to the ConnectionStringCollection at Runtime?

Question

Is there a way where I can add a connection string to the ConnectionStringCollection returned by the ConfigurationManager at runtime in an Asp.Net application?

I hav

Answer 1

var cfg = System.Web.Configuration.WebConfigurationManager.OpenWebConfiguration(@"/");
cfg.ConnectionStrings.ConnectionStrings.Add(new ConnectionStringSettings(params));

cfg.Save();

Be Advised this will cause your website to recycle since it modifies the config file. Check out http://msdn.microsoft.com/en-us/library/4c2kcht0(VS.80).aspx

Answer 2

No, you can't modify the config file at runtime, it isn't intended for that. Maybe you could use the Enterprise Libraries Configuration to do that.