How do I build correct connectionString?

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Hello,

I am currently developing a simple web application with using ASP.net c#.

I am building a connectionstring and to check if if have a valid or existing connectionstring in web.config file.

C#

class WebVacationManagerDac
{
   Configuration config = WebConfigurationManager.OpenWebConfiguration("~/");
   ConnectionStringSettings connString;

   if (config.ConnectionStrings.ConnectionStrings.Count > 0)
   {
      connString = config.ConnectionStrings.ConnectionStrings["FTDP"];
   }
}

The problem is have is that I declared 'config' and try to check if there is one connectionString in web.config. however, I get an error saying "WebVacationManagerDac.config it is 'field' but is used like a 'type'" within IF Statement

Any suggestion or advice??? Please

Posted 3-Nov-14 7:56am

stephenak

Updated 3-Nov-14 11:51am

Nelek

v3

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2 solutions

Solution 1

ConnectionStrings.ConnectionStrings ?

Posted 3-Nov-14 8:14am

PIEBALDconsult

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stephenak 3-Nov-14 14:20pm

Hi, I got ConnectionStrings.ConnectionStrings from http://msdn.microsoft.com/en-us/library/ms178411(v=vs.100).aspx?cs-save-lang=1&cs-lang=csharp#code-snippet-1 website

PIEBALDconsult 3-Nov-14 14:25pm

Don't trust stuff you found lying around the 'net. If you are using Visual Studio (or another modern IDE), then what does it tell you about the code?

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Member 10257159 · Accepted Answer · 2014-11-03T08:24:00

You have to write connection String in Web.config under Configuration Section Like following:
<connectionstrings>
<add name="ConStr" connectionstring="Server=.;DataBase=test;integrated Security=true" providername="System.Data.SqlClient">

And Access the connection String in code behind like following:

C#

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

OR

C#

string str=ConfigurationManager.ConnectionStrings["ConStr"].ConnectionString;

Now you can use "str" as connection String any where