Configuration system failed to initialize when trying to connect using c#

Question

I am trying to connect from my app to SQL server and im getting the following error: "Configuration system failed to initialize".

this is my App.config file:

    <?xml version="1.0" encoding="utf-8" ?>
<configuration>
  <ConnectionString>
    <add name="ConStr" ConnectionString="Data Source=10.0.0.111;Initial Catalog=InfoDesk;User ID=sa" />
  </ConnectionString>
    <startup> 
        <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.5" />
    </startup>
</configuration>

and this is from the app:

SqlConnection sqc = new SqlConnection(ConfigurationManager.ConnectionStrings["ConStr"].ConnectionString);

Endless glory for a good answer

Thanks, Erez

Community · Accepted Answer · 2017-05-23 10:32:14Z

1

I've looked at this Page. There is an example for a connection-string for the sql-server 2005.

I'm not sure, but I think you have to specify the databaseprovider in your connectionstring.

Update:

Found something at connectionstrings.com for SQL-Server 2008:

Data Source=190.190.200.100,1433;Network Library=DBMSSOCN;Initial Catalog=myDataBase;
User ID=myUsername;Password=myPassword;

Take a look at this. Maybe you have a problem with the IP

edited May 23, 2017 at 10:32

CommunityBot

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answered Jun 19, 2013 at 10:25

Tomtom

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4 Comments

segalle Over a year ago

Just saw that the inner exception is: Unrecognized configuration section ConnectionString. in line 3

Tomtom Over a year ago

Do you provide a valid password in your connection-string?

segalle Over a year ago

no... and im copying the connection string from the properties of the database in the Server Explorer in VS2012

segalle Over a year ago

The weirdest thing just happened: I decided to test the connection with a fresh solution and it worked like a charm, don't know why but i copy-paste it exactly the same... Lest call it a "Feature" :) thanks anyway for the mental support

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