Sql F＃類型提供程序，App.Config和ConnectionStrings？

Question

我試圖使用app.config文件的連接字符串加載到類提供商，但我收到以下錯誤：

error FS3033: The type provider 'Microsoft.FSharp.Data.TypeProviders.DesignTime.DataProviders' reported an error: Invalid provider '' in connection string entry 'Server1' in config file '...\app.config' . SqlDataConnection can only be used with provider 'System.Data.SqlClient' .

我把連接字符串中的app.config文件爲這樣：

<?xml version="1.0" encoding="utf-8"?> 
<configuration> 
    <runtime> 
    <assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1"> 
     <dependentAssembly> 
     <assemblyIdentity name="FSharp.Core" publicKeyToken="..." culture="neutral" /> 
     <bindingRedirect oldVersion="0.0.0.0-4.3.1.0" newVersion="4.3.1.0" /> 
     </dependentAssembly> 
    </assemblyBinding> 
    </runtime> 
    <connectionStrings> 
    <add name="Server1" connectionString="Server=..."/> 
    <add name="Server2" connectionString="Server=..."/> 
    </connectionStrings> 
</configuration> 

，然後在F＃中引用它們像這樣：

type dbSchema = SqlDataConnection<ConnectionStringName = "Server1", Views = false, Functions = false, StoredProcedures = false> 

任何想法，其中的問題是什麼？

Answer 1

請提供providerName作爲連接字符串。

<?xml version="1.0" encoding="utf-8"?> 
<configuration> 
    <runtime> 
    <assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1"> 
     <dependentAssembly> 
     <assemblyIdentity name="FSharp.Core" publicKeyToken="..." culture="neutral" /> 
     <bindingRedirect oldVersion="0.0.0.0-4.3.1.0" newVersion="4.3.1.0" /> 
     </dependentAssembly> 
    </assemblyBinding> 
    </runtime> 
    <connectionStrings> 
    <add name="Server1" connectionString="Server=..." providerName="System.Data.SqlClient"/> 
    <add name="Server2" connectionString="Server=..."/> 
    </connectionStrings> 
</configuration> 

我已經調整所提供的app.config，Server1功能，Server2失敗，您報告的消息。