Connecting to SQL express using Asp.net

Server =. \ sqlexpress; database = shopdb; uid = sa; Pwd = 850414

For example:

<? XML version = "1.0"?>
<Configuration>
<Configsections>
<Sectiongroup name = "system. web. extensions "type =" system. web. configuration. systemwebextensionssectiongroup, system. web. extensions, version = 1.0.61025.0, culture = neutral, publickeytoken = 31bf3856ad364e35 ">
<Sectiongroup name = "scripting" type = "system. Web. configuration. scriptingsectiongroup, system. Web. Extensions, version = 1.0.61025.0, culture = neutral, publickeytoken = 31bf3856ad364e35">
<Section name = "scriptresourcehandler" type = "system. web. configuration. scriptingscriptresourcehandlersection, system. web. extensions, version = 1.0.61025.0, culture = neutral, publickeytoken = 31bf3856ad364e35 "requirepermission =" false "allowdefinition =" machinetoapplication "/>
<Sectiongroup name = "WebServices" type = "system. Web. configuration. scriptingwebservicessectiongroup, system. Web. Extensions, version = 1.0.61025.0, culture = neutral, publickeytoken = 31bf3856ad364e35">
<Section name = "jsonserialization" type = "system. web. configuration. scriptingjsonserializationsection, system. web. extensions, version = 1.0.61025.0, culture = neutral, publickeytoken = 31bf3856ad364e35 "requirepermission =" false "allowdefinition =" everywhere "/>
<Section name = "profileservice" type = "system. web. configuration. scriptingprofileservicesection, system. web. extensions, version = 1.0.61025.0, culture = neutral, publickeytoken = 31bf3856ad364e35 "requirepermission =" false "allowdefinition =" machinetoapplication "/>
<Section name = "authenticationservice" type = "system. web. configuration. scriptingauthenticationservicesection, system. web. extensions, version = 1.0.61025.0, culture = neutral, publickeytoken = 31bf3856ad364e35 "requirepermission =" false "allowdefinition =" machinetoapplication "/>
</Sectiongroup>
</Sectiongroup>
</Sectiongroup>
</Configsections>
<System. Web>
<Pages>
<Controls>
<Add tagprefix = "asp" namespace = "system. Web. UI" assembly = "system. Web. Extensions, version = 1.0.61025.0, culture = neutral, publickeytoken = 31bf3856ad364e35"/>
</Controls>
</Pages>
<! --
Set compilation DEBUG = "true" to insert debugging
Symbols into the compiled page. Because this
Affects performance, set this value to true only
During development.
-->
<Compilation DEBUG = "true">
<Assemblies>
<Add Assembly = "system. Web. Extensions, version = 1.0.61025.0, culture = neutral, publickeytoken = 31bf3856ad364e35"/>
<Add Assembly = "system. Web. Extensions. Design, version = 1.0.61025.0, culture = neutral, publickeytoken = 31bf3856ad364e35"/>
<Add Assembly = "system. Design, version = 2.0.0.0, culture = neutral, publickeytoken = b03f5f7f11d50a3a"/>
<Add Assembly = "system. Windows. Forms, version = 2.0.0.0, culture = neutral, publickeytoken = b77a5c561934e089"/>
<Add Assembly = "system. Data, version = 2.0.0.0, culture = neutral, publickeytoken = b77a5c561934e089"/>
<Add Assembly = "system, version = 2.0.0.0, culture = neutral, publickeytoken = b77a5c561934e089"/>
<Add Assembly = "system. XML, version = 2.0.0.0, culture = neutral, publickeytoken = b77a5c561934e089"/>
<Add Assembly = "system. Web, version = 2.0.0.0, culture = neutral, publickeytoken = b03f5f7f11d50a3a"/>
<Add Assembly = "system. configuration, version = 2.0.0.0, culture = neutral, publickeytoken = b03f5f7f11d50a3a"/> </assemblies>
</Compilation>
<Httphandlers>
<Remove verb = "*" Path = "*. asmx"/>
<Add verb = "*" Path = "*. asmx "Validate =" false "type =" system. web. script. services. scripthandlerfactory, system. web. extensions, version = 1.0.61025.0, culture = neutral, publickeytoken = 31bf3856ad364e35 "/>
<Add verb = "*" Path = "* _ appservice. axd "Validate =" false "type =" system. web. script. services. scripthandlerfactory, system. web. extensions, version = 1.0.61025.0, culture = neutral, publickeytoken = 31bf3856ad364e35 "/>
<Add verb = "Get, head" Path = "scriptresource. axd "type =" system. web. handlers. scriptresourcehandler, system. web. extensions, version = 1.0.61025.0, culture = neutral, publickeytoken = 31bf3856ad364e35 "Validate =" false "/>
</Httphandlers>
<Httpmodules>
<Add name = "scriptmodule" type = "system. Web. Handlers. scriptmodule, system. Web. Extensions, version = 1.0.61025.0, culture = neutral, publickeytoken = 31bf3856ad364e35"/>
</Httpmodules>
</System. Web>
<System. Web. Extensions>
<Scripting>
<WebServices>
<! -- Uncomment this line to customize maxjsonlength and add a custom converter -->
<! --
<Jsonserialization maxjsonlength = "500">
<Converters>
<Add name = "convertme" type = "Acme. subacme. convertmetypeconverter"/>
</Converters>
</Jsonserialization>
-->
<! -- Uncomment this line to enable the authentication service. Include requiressl = "true" if appropriate. -->
<! --
<Authenticationservice enabled = "true" requiressl = "True | false"/>
-->
<! -- Uncomment these lines to enable the profile service. To allow profile properties to be retrieved
And modified in ASP. NET Ajax applications, you need to add each property name to the readaccessproperties and
Writeaccessproperties attributes. -->
<! --
<Profileservice enabled = "true"
Readaccessproperties = "propertyname1, propertyname2"
Writeaccessproperties = "propertyname1, propertyname2"/>
-->
</WebServices>
<! --
<Scriptresourcehandler enablecompression = "true" enablecaching = "true"/>
-->
</Scripting>
</System. Web. Extensions>
<System. webserver>
<Validation validateintegratedmodeconfiguration = "false"/>
<Modules>
<Add name = "scriptmodule" precondition = "integratedmode" type = "system. web. handlers. scriptmodule, system. web. extensions, version = 1.0.61025.0, culture = neutral, publickeytoken = 31bf3856ad364e35 "/>
</Modules>
<Handlers>
<Remove name = "webservicehandlerfactory-integrated"/>
<Add name = "scripthandlerfactory" verb = "*" Path = "*. asmx "precondition =" integratedmode "type =" system. web. script. services. scripthandlerfactory, system. web. extensions, version = 1.0.61025.0, culture = neutral, publickeytoken = 31bf3856ad364e35 "/>
<Add name = "scripthandlerfactoryappservices" verb = "*" Path = "* _ appservice. axd "precondition =" integratedmode "type =" system. web. script. services. scripthandlerfactory, system. web. extensions, version = 1.0.61025.0, culture = neutral, publickeytoken = 31bf3856ad364e35 "/>
<Add name = "scriptresource" precondition = "integratedmode" verb = "Get, head" Path = "scriptresource. axd "type =" system. web. handlers. scriptresourcehandler, system. web. extensions, version = 1.0.61025.0, culture = neutral, publickeytoken = 31bf3856ad364e35 "/>
</Handlers>
</System. webserver>
<Connectionstrings>
<Add name = "shopdbconnectionstring1" connectionstring = "Data Source =. \ sqlexpress; attachdbfilename = | datadirectory | \ shopdb. MDF; Integrated Security = true; user instance = true "providername =" system. data. sqlclient "/>
</Connectionstrings>
<Deleetask>
<Add key = "connectionstring" value = "Server =. \ sqlexpress; database = shopdb; uid = sa; Pwd = 850414"/>
<Add key = "loginconnectionstring" value = "Server =. \ sqlexpress; database = shopdb; uid = sa; Pwd = 850414"/>
<Add key = "merchantid" value = "011051"/>
<Add key = "newwebconnectionstring" value = "success"/>
</Appsettings>
</Configuration>