How to ... read connections string from app.config or web.config file

In this short tutorial I will show how to put and to retrieve connection strings (usualy write once, read many) from the config file.
There are 4 easy steps - and a table is read

Category:

Science & Technology

Tags:

• SqlServer
• .NET
• C#
• app.config
• web.config
• connection strings

[mryeah07]

What if I will make a form to allow users to change sql database settings for connection string. How can I do that?

[ignatandrei1970]

@mryeah07 : usually they do not need to do this for every time they run the application(do they?). If , however, they need, please make a new class to wrote to the connection string.

[mryeah07]

Great tutorial! I have a question in connection string. I need to deploy my application and make it as an installer. What connection string I will be using?

[ignatandrei1970]

@mryeah07 : from the user - think that is an administrator that does the installation

[mryeah07]

Ok thanks, the application will do this in the first time of using the application after the installation.