设置提供程序时出错

问题描述

嗨

 A network-related or instance-specific error occurred while establishing a connection to SQL Server. The server was not found or was not accessible. Verify that the instance name is correct and that SQL Server is configured to allow remote connections. (provider: Named Pipes Provider, error: 40 - Could not open a connection to SQL Server)
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.

Exception Details: System.Data.SqlClient.SqlException: A network-related or instance-specific error occurred while establishing a connection to SQL Server. The server was not found or was not accessible. Verify that the instance name is correct and that SQL Server is configured to allow remote connections. (provider: Named Pipes Provider, error: 40 - Could not open a connection to SQL Server)

Source Error:

An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below.

web.config

web.config

推荐答案

<?xml version="1.0"?>
<configuration>
 <configSections>
 <sectionGroup name="system.web.extensions" type="System.Web.Configuration.SystemWebExtensionsSectionGroup, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35">
 ... <!-- код студии -->
</sectionGroup>
 </sectionGroup>
 </configSections>
 <appSettings/>
 <connectionStrings>
 <add name="SqlServices" connectionString="Data Source=localhost;Integrated Security=SSPI;Initial Catalog=aspnetdb;" />
 </connectionStrings>
 <system.web>
 <authentication mode="Forms">
 <forms loginUrl="login.aspx"

 name=".ASPXFORMSAUTH" />
 </authentication>
 <roleManager enabled="true" />
 <compilation debug="true">
...
 </compilation>
 <pages>
 <controls>
 ... </pages>
 <httpHandlers>
...
 <httpModules>
 ... </httpModules>
 <membership defaultProvider="SqlProvider"

 userIsOnlineTimeWindow="15">
 <providers>
 <add

 name="SqlProvider"

 type="System.Web.Security.SqlMembershipProvider"

 connectionStringName="SqlServices"

 applicationName="MyApplication"

 enablePasswordRetrieval="false"

 enablePasswordReset="true"

 requiresQuestionAndAnswer="true"

 requiresUniqueEmail="false"

 passwordFormat="Hashed"

 maxInvalidPasswordAttempts="5"

 passwordAttemptWindow="10" />
 </providers>
 </membership>

 </system.web>
 <system.codedom>
 <compilers>
 <compiler language="c#;cs;csharp" extension=".cs" warningLevel="4" type="Microsoft.CSharp.CSharpCodeProvider, System, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089">
 ... </compiler>
 </compilers>
 </system.codedom>
 <system.webServer>
 <validation validateIntegratedModeConfiguration="false"/>
 <modules>
 <remove name="ScriptModule"/>
 <add name="ScriptModule" preCondition="managedHandler" type="System.Web.Handlers.ScriptModule, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35"/>
 </modules>
 <handlers>
 ...
 </handlers>
 </system.webServer>
 <runtime>
 ...
 </runtime>
</configuration>

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