ASP.net C Sharp error

Hi on the line starting '   sqlConn.ConnectionString = ConfigurationManager
I am getting the error "The name ConfigurationManager does not exist in the current contect

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Data;
using System.Data.SqlClient;
using System.Data.Sql;

namespace CRM_GHB
{
    public partial class Contacts : System.Web.UI.Page
    {
        protected void Page_Load(object sender, EventArgs e)
        {

        }

        public void DisplayContacts()
        {
            System.Data.SqlClient.SqlConnection sqlConn = new System.Data.SqlClient.SqlConnection();
            sqlConn.ConnectionString = ConfigurationManager.ConnectionStrings("GHBCRM_TSTConnectionString").ConnectionString;

            try
            {
                sqlConn.Open();
            }
            catch (Exception ex)
            {
                Interaction.MsgBox(ex.Message, "connection failed");
            }
Murray BrownMicrosoft Cloud Azure/Excel Solution DeveloperAsked:
Who is Participating?
I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

Gary DavisDir Internet SvcsCommented:
You need to Add Reference for System.Configuration.

Gary Davis
0

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
Vishal KedarCommented:
You need to reference System.Configuration.dll in your project as well as the "using" statement.

Namespaces are (sometimes) "split" across assemblies. That means that types in a single namespace are actually in different assemblies.

To determine which assembly a BCL or FCL type is in, look it up on MSDN. If you look at the help for ConfigurationManager, you'll see that it specifies that it's in the System.Configuration assembly by looking near the top at "Assembly". This is the assembly you need to reference from your project
0
Murray BrownMicrosoft Cloud Azure/Excel Solution DeveloperAuthor Commented:
Thanks very much
0
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today
ASP.NET

From novice to tech pro — start learning today.