Solved

Configuration App settings in memory

Posted on 2015-01-26
3
71 Views
Last Modified: 2015-01-27
I have an application where the configuration values are read from various classes some of which are static.

How can I ensure that when I get the values from the appSettings the application does not need to reopen the app.config file but uses these from memory.

I had thought of creating a class that I can pass around that just loads the settings into say a List<String>.

Is there a standard way of holding the appSettings in memory and so ensuring better performance?
0
Comment
Question by:jetbet
  • 2
3 Comments
 
LVL 33

Expert Comment

by:it_saige
ID: 40571526
The ConfigurationManager class does load the application settings in memory.

This is why Application Settings that are changed while a program is running do not take affect until the application is restarted (or you explicitly call the RefreshSection method).

You can refer to this blog post for more information: http://www.c-sharpcorner.com/UploadFile/akkiraju/refreshing-the-net-application-to-read-modified-configurati/

-saige-
0
 
LVL 40
ID: 40571851
I have to partially contradict it_saige.

Yes, the application settings are loaded into memory. In fact, it takes the role of the class that you want to create, so I do not see the need for it. Change a setting, and it is changed for the life of the current run of the application.

However, the settings do take effect in the current run of the application as soon as you change them. Change a setting, read it back, it it has the new value.

It's their persistence between runs of the application that could be in question if you do not Save them back to app.config before exiting the application.
0
 
LVL 33

Accepted Solution

by:
it_saige earned 500 total points
ID: 40572835
Let me qualify my statement for clarity.  Changing the AppSetting by editing the XML file directly, does not affect the setting while the application is running (this is what the blog post above illustrates).

However, James is correct, if you change the setting that is loaded into memory, then the setting change takes affect immediately.  Also, as James points out, you do need to save the setting(s) back to the XML file when you change them.

-saige-
0

Featured Post

DevOps Toolchain Recommendations

Read this Gartner Research Note and discover how your IT organization can automate and optimize DevOps processes using a toolchain architecture.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

A long time ago (May 2011), I have written an article showing you how to create a DLL using Visual Studio 2005 to be hosted in SQL Server 2005. That was valid at that time and it is still valid if you are still using these versions. You can still re…
This article aims to explain the working of CircularLogArchiver. This tool was designed to solve the buildup of log file in cases where systems do not support circular logging or where circular logging is not enabled
This Micro Tutorial demonstrates using Microsoft Excel pivot tables, how to reverse engineer competitors' marketing strategies through backlinks.
Email security requires an ever evolving service that stays up to date with counter-evolving threats. The Email Laundry perform Research and Development to ensure their email security service evolves faster than cyber criminals. We apply our Threat…

813 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

10 Experts available now in Live!

Get 1:1 Help Now