How can I write the connection string in app.config at run time?

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.NET3.0

Dear all
I am trying to create a project and I want to design a Setting form to let the user to enter the connection string in a text box and save it in the App.config file in the first time of the application life.
Can you help me please?

Posted 9-May-15 11:25am

fadi77_net

Updated 9-May-15 22:45pm

v2

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Abhinav S · Answer 1 · 2015-05-09T22:55:00

Solution 1

Try these links -
Saving Connection Strings to app.config[^]
Configuring a Connection String in the App.Config File During Runtime in C#[^]

It might be more useful to save the connection string during installation rather than the first.

Posted 9-May-15 22:55pm

Abhinav S

v2

Comments

fadi77_net 10-May-15 16:01pm

I tried both samples, they were working properly, and I checked the application configuration file during the run time and I found it saved my connection string settings, but when I close my application it deleted all settings that had been added during the run time.
can you help me please?

Kornfeld Eliyahu Peter · Answer 2 · 2015-05-09T22:57:00

Solution 2

Search and Find:
https://msdn.microsoft.com/en-us/library/ms254494(v=vs.110).aspx[^]
Saving Connection Strings to app.config[^]

Posted 9-May-15 22:57pm

Kornfeld Eliyahu Peter

Comments

fadi77_net 10-May-15 16:02pm

I tried the sample, it was working properly, and I checked the application configuration file during the run time and I found it saved my connection string settings, but when I close my application it deleted all settings that had been added during the run time.
can you help me please?