ado.net实体对象模型的连接字符串问题

Question

 _ConnectString = @"metadata=res://*/Sys.DBSYS.csdl|res://*/Sys.DBSYS.ssdl|res://*/Sys.DBSYS.msl;provider=System.Data.SqlClient;provider connection string="data source=mypc\sqlexpress;initial catalog=mydatabase;user id=sa;password=test;multipleactiveresultsets=True;App=EntityFramework"";

我在程序中按上面的连接字符串，总是提示：不支持关键字: “data source”

但是上面的字符串是我从app.cofig文件中复制过来的。不知错在哪里呢？

Answer 1

经检查，在data source=mypc\sqlexpress这里，运行时的值被改变了，变成了data source=mypc\\sqlexpress,这是怎么回事呢？与多出那个\有关么？

Answer 2

没有，\\是调试器格式化的结果。你可能把实体对象模型的连接字符串给非实体对象模型的类用了，检查你的用法。

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