How to access connection string in VS2012 WPF application from app.config?

Question

I am using VS2012. I have to keep connection string in app.config and have to access it from my cs file. But I am unable to do it in VS2012. Following is what I have found from net but I think it works on earlier version of VS not on VS2012.

app.config file

<?xml version="1.0" encoding="utf-8" ?>
<configuration>
    <startup> 
        <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.5" />
    </startup>
   <connectionStrings>
      <add name="DataFormConnection"
            connectionString="Data Source=abcdd;database=xyz;uid=4566;pwd=987"
            providerName="System.Data.SqlClient" />
   </connectionStrings>
</configuration>

How I am accessing it:

connectionString = ConfigurationManager.ConnectionStrings["DataFormConnection"].ConnectionString;

Getting error: type or name does not exist in System.Configuration.ConfiguarationSettings

Why is this tagged "ASP.Net"? Is it WPF or ASP.Net? 2-tier or 3-tier? app.config or web.config? — ken2k
– ken2k, Commented Apr 22, 2013 at 10:02
Your error message says System.Configuration.ConfigurationSettings but your code is using ConfigurationManager - can you clarify that you aren't using ConfigurationSettings somewhere (I think this class was .NET 1/1.1) — Charleh
– Charleh, Commented Apr 22, 2013 at 10:08

misleadingTitle · Accepted Answer · 2013-04-22 10:02:24Z

20

Go to references, and add a reference to System.Configuration.

answered Apr 22, 2013 at 10:02

misleadingTitle

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Sachin · Accepted Answer · 2013-04-22 10:02:37Z

6

Go to References, and add a reference to System.Configuration

Once you have done this, you should be able to reference System.Configuration.ConfigurationManager.

answered Apr 22, 2013 at 10:02

Sachin

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