How to write connection string in web.config file using asp.net?

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How to write connection string in web.config file using asp.net,

i just applied this code:

HTML

<configuration>
	<configsections>
    
        <add name="conn" connectionstring="Data Source=TEKPC26\SQLEXPRESS; <br mode=" hold=" />                       AttachDbFilename=registration.mdf; <br mode=" />
</configsections>
</configuration>

but getting one error!
"The element 'configSections' has invalid child element 'add'. List of possible elements expected: 'section, sectionGroup'.

Posted 2-Nov-11 18:59pm

muralikrishna53

Updated 2-Nov-11 19:03pm

P.Salini

v4

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P.Salini · Answer 1 · 2011-11-02T19:02:00

Solution 1

Place in this way
You need to place it in configuration tag and outside configsections tag

XML

<connectionStrings>
        <add name="ConnectionString" providerName="System.Data.SqlClient" connectionString="server=.;database=YourDB;User id= uidofDB;Password=pwd"/>
    </connectionStrings>

Posted 2-Nov-11 19:02pm

P.Salini

Updated 2-Nov-11 19:07pm

v3

uspatel · Answer 2 · 2011-11-02T19:05:00

check it

C#

<configuration>
  <configsections>
    <sectiongroup name="system.web.extensions" type="System.Web.Configuration.SystemWebExtensionsSectionGroup, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35">
      <sectiongroup name="scripting" type="System.Web.Configuration.ScriptingSectionGroup, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35">
        <section name="scriptResourceHandler" type="System.Web.Configuration.ScriptingScriptResourceHandlerSection, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirepermission="false" allowdefinition="MachineToApplication" />
        <sectiongroup name="webServices" type="System.Web.Configuration.ScriptingWebServicesSectionGroup, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35">
          <section name="jsonSerialization" type="System.Web.Configuration.ScriptingJsonSerializationSection, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirepermission="false" allowdefinition="Everywhere" />
          <section name="profileService" type="System.Web.Configuration.ScriptingProfileServiceSection, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirepermission="false" allowdefinition="MachineToApplication" />
          <section name="authenticationService" type="System.Web.Configuration.ScriptingAuthenticationServiceSection, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirepermission="false" allowdefinition="MachineToApplication" />
          <section name="roleService" type="System.Web.Configuration.ScriptingRoleServiceSection, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirepermission="false" allowdefinition="MachineToApplication" />
        </sectiongroup>
      </sectiongroup>
    </sectiongroup>
  </configsections>
  <appsettings>
    <add key="con" value="Data Source=OMXHO11SFD0885\UMA;Initial Catalog=omx;Persist Security Info=True;User ID=sa;Password=pass" />
  </appsettings>
  <connectionstrings>
    <add name="cnn" connectionstring="Data Source=OMXHO11SFD0885\UMA;Initial Catalog=omx;Persist Security Info=True;User ID=sa;Password=pass" providername="System.Data.SqlClient" />
  </connectionstrings>
</configuration>

member60 · Answer 3 · 2011-11-02T19:05:00

Solution 3

u can as:

HTML

<add connectionstring="server=.\SQLEXPRESS;database=DatabaseName;Trusted_connection=True;" name="strconnection" providername="System.Data.SqlClient" />

Posted 2-Nov-11 19:05pm

member60

Comments

[no name] 3-Nov-11 7:58am

Getting one error!!

Only one <configsections> element allowed per config file and if present must be the first child of the root <configuration> element. C:\Documents and Settings\200228\My Documents\Visual Studio 2010\WebSites\registration\web.config

sravani.v · Answer 4 · 2011-11-02T19:07:00

Solution 4

Refer this link:

http://weblogs.asp.net/owscott/archive/2005/08/26/Using-connection-strings-from-web.config-in-ASP.NET-v2.0.aspx[^]

Posted 2-Nov-11 19:07pm

sravani.v