Asp.net Difference between appSettings and Connection Strings in web.config

Introduction:

In this article I will explain the differences between appsettings and connection strings in web.config using asp.net.

Description:

In previous posts I explained Read or Write appsettings from web.config, Read/Write connection strings in web.config. Now I will explain differences between appsettings and connection strings in web.config using asp.net.

In many cases, we need to use some data string throughout the application simple example for this database connection string. Instead of writing the same connection string wherever required, it is easy to maintain if we store it in one place that is web.config file.

In web.config file we can store the connection strings in two ways those are appSettings and connectionStrings

AppSettings in web.config

The AppSettings section in web.config is used to store connection strings, server names, file paths, and other miscellaneous settings needed by an application. (Read More)

Connection String in web.config

The connection string in web.config is a collection of database connection strings only.

Actually in previous versions of ASP.NET all connection string values are storing in appsettings only. In ASP.NET 2.0 + version new features has introduced such as Session, Membership, Personalization, and Role Manager these will depend on connection strings and stored in the connectionStrings element only. (Read More)

Difference

The main difference is in appsettings section we can store any data string values including database connection strings also but in connectionStrings section only database connection strings can store those are our application connection strings and new features (Membership, Personalization and Role Manager) connection strings only.

Instead of this there is no much difference between appsettings and connectionStrings.

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