Move a list from C# into web Config [duplicate]

Question

Currently i have a list of states that determine whether a link is visible or not on my site. I am trying to find a way to move this list into my web.config file so as the list of states grows i do not have to republish in order to make a change.

string[] statesneeded = new string[] {"AZ","GA","IA", "TN", "SC", "KS", "MI" ,"NC", "UT"};

How would i reference this list in my web config and then call it in C#? Any help is appreciated. Thank you.

Is this list user based or has it application scope? If the former you could use the settings, especially the System.Collections.Specialized.StringCollection. — Tim Schmelter
– Tim Schmelter, Commented Jul 6, 2015 at 14:14
Thanks for all the help found that i had a settings class in my project which held all info so as not to use configuration manager everywhere. — Leonardo Wildt
– Leonardo Wildt, Commented Jul 6, 2015 at 14:43

Community · Accepted Answer · 2017-05-23 12:33:03Z

2

You could make it a comma-separated string and store it in the appSettings section:

<add key="statesUsedForFooFunctionality" value="AZ,GA,IA, TN, SC, KS, MI ,NC, UT" />

And split it into an array:

string statesFromConfig = ConfigurationManager.AppSettings["statesUsedForFooFunctionality"];
if (string.IsNullOrWhiteSpace("statesFromConfig"))
{
    throw new ConfigurationErrorsException("Required AppSettings key 'statesFromConfig' is missing.");
}

string[] statesneeded = statesFromConfig.Split(',');

But this is also explained in the duplicate How to get a List<string> collection of values from app.config in WPF?.

edited May 23, 2017 at 12:33

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answered Jul 6, 2015 at 14:19

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