我将 Entity Framework 5 与Oracle.ManagedDataAccess一起使用。Visual Studio 说我的 edmx 文件中有错误:
错误 175:在配置中找不到指定的商店提供程序,或者无效。
我的应用程序编译并运行没有任何问题。我无法使用模型浏览器,实体模型设计器无法显示 edmx 文件。
当我将数据提供程序从Oracle.ManagedDataAccess重新配置为Oracle.DataAccess时,它可以工作,但 Oracle 组件仅安装在我的开发机器上,因此我无法使用 Oracle.DataAccess。
这是我的web.config:
<configSections>
<section name="entityFramework" type="System.Data.Entity.Internal.ConfigFile.EntityFrameworkSection, EntityFramework, Version=5.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" requirePermission="false" />
<section name="oracle.manageddataaccess.client" type="OracleInternal.Common.ODPMSectionHandler, Oracle.ManagedDataAccess, Version=4.121.2.0, Culture=neutral, PublicKeyToken=89b483f429c47342" />
</configSections>
<!-- ... -->
<system.web>
<httpRuntime targetFramework="4.5" />
<compilation debug="true" targetFramework="4.5">
<assemblies>
<add assembly="System.Data.Entity, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" />
</assemblies>
</compilation>
</system.web>
<!-- ... -->
<entityFramework>
<defaultConnectionFactory type="System.Data.Entity.Infrastructure.LocalDbConnectionFactory, EntityFramework">
<parameters>
<parameter value="v11.0" />
</parameters>
</defaultConnectionFactory>
</entityFramework>
<!-- ... -->
<system.data>
<DbProviderFactories>
<remove invariant="Oracle.ManagedDataAccess.Client" />
<remove invariant="Oracle.DataAccess.Client" />
<add invariant="Oracle.ManagedDataAccess.Client" name="ODP.NET, Managed Driver" description="Oracle Data Provider for .NET, Managed Driver" type="Oracle.ManagedDataAccess.Client.OracleClientFactory, Oracle.ManagedDataAccess, Version=4.121.2.0, Culture=neutral, PublicKeyToken=89b483f429c47342"
/>
</DbProviderFactories>
</system.data>
<!-- ... -->
<runtime>
<assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1">
<dependentAssembly>
<publisherPolicy apply="no" />
<assemblyIdentity name="Oracle.ManagedDataAccess" publicKeyToken="89b483f429c47342" culture="neutral" />
<bindingRedirect oldVersion="4.121.0.0 - 4.65535.65535.65535" newVersion="4.121.2.0" />
</dependentAssembly>
</assemblyBinding>
</runtime>
<!-- ... -->
<oracle.manageddataaccess.client>
<version number="*">
<dataSources>
<dataSource alias="datasource" descriptor="dummydescriptor" />
</dataSources>
</version>
</oracle.manageddataaccess.client>
<!-- ... -->
<connectionStrings>
<add name="myEntities" connectionString="metadata=res://*/myModel.csdl|res://*/myModel.ssdl|res://*/myModel.msl;provider=Oracle.ManagedDataAccess.Client;provider connection string="dummy"" providerName="System.Data.EntityClient" />
</connectionStrings>
我的edmx的一部分:
<?xml version="1.0" encoding="utf-8" ?>
<edmx:Edmx Version="3.0" xmlns:edmx="http://schemas.microsoft.com/ado/2009/11/edmx">
<!-- EF Runtime content -->
<edmx:Runtime>
<!-- SSDL content -->
<edmx:StorageModels>
<Schema Namespace="Model.Store" Alias="Self" Provider="Oracle.ManagedDataAccess.Client" ProviderManifestToken="11.2" xmlns:store="http://schemas.microsoft.com/ado/2007/12/edm/EntityStoreSchemaGenerator" xmlns="http://schemas.microsoft.com/ado/2009/11/edm/ssdl">
我使用 Visual Studio 2012 并安装了 Oracle Tools for Visual Studio。
我有办法摆脱这个错误信息吗?
提前致谢