我有一個連接到sqlexpress.I的c#.net 4.0應用程序想要進行更改,以便它連接到localDB。我會重複使用相同的mdf。爲實體框架設置localDB
目前的配置文件具有以下條目
<configuration>
<configSections>
<section name="entityFramework" type="System.Data.Entity.Internal.ConfigFile.EntityFrameworkSection, EntityFramework, Version=6.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" requirePermission="false" />
</configSections>
<startup>
<supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.0" />
</startup>
<entityFramework>
<defaultConnectionFactory type="System.Data.Entity.Infrastructure.SqlConnectionFactory, EntityFramework">
<parameters>
<parameter value="Data Source=.\EMSERVER; Integrated Security=True; MultipleActiveResultSets=True" />
</parameters>
</defaultConnectionFactory>
<providers>
<provider invariantName="System.Data.SqlClient" type="System.Data.Entity.SqlServer.SqlProviderServices, EntityFramework.SqlServer" />
</providers>
</entityFramework>
另外,在代碼
串的providerName = 「System.Data.SqlClient的」;
// Initialize the connection string builder for the
// underlying provider.
SqlConnectionStringBuilder sqlBuilder =
new SqlConnectionStringBuilder();
// Set the properties for the data source.
sqlBuilder.DataSource = serverName;
sqlBuilder.InitialCatalog = databaseName;
sqlBuilder.IntegratedSecurity = true;
sqlBuilder.Enlist = true;
sqlBuilder.MultipleActiveResultSets = true;
// Build the SqlConnection connection string.
string providerString = sqlBuilder.ToString();
// Initialize the EntityConnectionStringBuilder.
EntityConnectionStringBuilder entityBuilder =
new EntityConnectionStringBuilder();
//Set the provider name.
entityBuilder.Provider = providerName;
// Set the provider-specific connection string.
entityBuilder.ProviderConnectionString = providerString;
// Set the Metadata location.
entityBuilder.Metadata = @"res://*/TrendDataModel.csdl|
res://*/TrendDataModel.ssdl|
res://*/TrendDataModel.msl";
return entityBuilder.ToString();
我們是否應該有代碼和app.config?我如何將其更改爲連接到位於c:\ temp中的test.mdf文件。或者它足夠我直接在代碼中更改連接字符串?
我抄在問題在app.config也形成代碼 – user1687824