Category - Web.Config
Here Mudassar Ahmed Khan has explained with an example, how to read or write Connection Strings in Web.Config file using ASP.Net using C# and VB.Net.
The Connection String will be read and written from the Connection String from the ConnectionStrings section of the Web.Config.
Here Mudassar Ahmed Khan has explained with an example, how to solve the following error (exception) that occurs when using the ASP.Net SqlDataSource control.
The connection name 'constr' was not found in the applications configuration or the connection string is empty.