ADO.NET Entity Framework 之“无法加载指定的元数据资源。”

       修改了ef项目的连接字符串后，运行程序出现 "无法加载指定的元素数据资源"

     

原因是连接字符串中csdl/.ssdl/.msl三个文件的路径没有修改

连接前的字符串：

<add name= " UserRightContext " connectionString= " metadata=res://*/UserRight.csdl|res://*/UserRight.ssdl|res://*/UserRight.msl;provider=System.Data.SqlClient;provider connection string=&quot;Data Source=PC2012030213UMH\SQLEXPRESS;Initial Catalog=SjlFramework;User ID=sa;MultipleActiveResultSets=True&quot; " providerName= " System.Data.EntityClient " />

连接后的字符串：

 

 
  
        <add name= 
   " 
   UserRightContext 
   " 
   
 connectionString= 
   " 
   metadata=res://*/App_Code.Model.csdl|res://*/App_Code.Model.ssdl|res://*/App_Code.Model.msl;provider=System.Data.SqlClient;provider connection string=&quot;Data Source=PC2012030213UMH\SQLEXPRESS;Initial Catalog=SjlFramework;Integrated Security=True;MultipleActiveResultSets=True&quot; 
   " providerName= 
   " 
   System.Data.EntityClient 
   "/> 
   
 

 

更改模型命名空间一定不要忘了在App.Config中更改.csdl/.ssdl/.msl三个文件的路径