Question

我使用的是WPF Windows和ADO.NET EF 6x，VS 2015更新3。只有在设计时才会出现“无法在应用程序配置文件中找到连接字符串”的错误。

The image at design time 但是当我运行它时，编译时没有错误并且工作完美。 The image at run time

如何解决这个问题？

我的App.config

<?xml version="1.0" encoding="utf-8"?>
<configuration>
    <configSections>
        <!-- For more information on Entity Framework configuration, visit http://go.microsoft.com/fwlink/?LinkID=237468 -->
        <section name="entityFramework" type="System.Data.Entity.Internal.ConfigFile.EntityFrameworkSection, EntityFramework, Version=6.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" requirePermission="false" />
    </configSections>
    <connectionStrings>
        <add name="knightitEntities" connectionString="metadata=res://*/KnightModel.csdl|res://*/KnightModel.ssdl|res://*/KnightModel.msl;provider=System.Data.SqlClient;provider connection string=&quot;data source=DESKTOP-ELNOS23;initial catalog=knightit;user id=user;password=password;MultipleActiveResultSets=True;App=EntityFramework&quot;" providerName="System.Data.EntityClient" />
    </connectionStrings>
    <startup>
        <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.6.1" />
    </startup>
    <entityFramework>
        <defaultConnectionFactory type="System.Data.Entity.Infrastructure.LocalDbConnectionFactory, EntityFramework">
            <parameters>
                <parameter value="mssqllocaldb" />
            </parameters>
        </defaultConnectionFactory>
        <providers>
            <provider invariantName="System.Data.SqlClient" type="System.Data.Entity.SqlServer.SqlProviderServices, EntityFramework.SqlServer" />
        </providers>
    </entityFramework>
</configuration>

设计时间：在应用程序配置文件

0 个答案: