上传服务器后出现错误（生成）
我发现前两个的错误的地址是我自己机器的地址 ，SQLHelperBLL是我WTi_BLL的一个类，我检查了14,行。代码是
  string connectstr = ConfigurationManager.ConnectionStrings["Connectstr"].ConnectionString;
这个怎么解决啊？？？？
堆栈跟踪: 


[NullReferenceException: 未将对象引用设置到对象的实例。]
  WTi_BLL.SQLHelperBLL..ctor() in D:\WTi_HR7-25\WTi_BLL\SQLHelperBLL.cs:14
  WTi_HR.Login..ctor() in D:\WTi_HR7-25\WTi_HR\Login.aspx.cs:20
  ASP.login_aspx..ctor() +10
  __ASP.FastObjectFactory_app_web_jto_qd43.Create_ASP_login_aspx() +20
  System.Web.Compilation.BuildResultCompiledType.CreateInstance() +49
  System.Web.Compilation.BuildManager.CreateInstanceFromVirtualPath(VirtualPath virtualPath, Type requiredBaseType, HttpContext context, Boolean allowCrossApp, Boolean noAssert) +115
  System.Web.UI.PageHandlerFactory.GetHandlerHelper(HttpContext context, String requestType, VirtualPath virtualPath, String physicalPath) +31
  System.Web.UI.PageHandlerFactory.System.Web.IHttpHandlerFactory2.GetHandler(HttpContext context, String requestType, VirtualPath virtualPath, String physicalPath) +40
  System.Web.HttpApplication.MapHttpHandler(HttpContext context, String requestType, VirtualPath path, String pathTranslated, Boolean useAppConfig) +139
  System.Web.MapHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() +120
  System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) +155

 


------解决方案--------------------
哪就得换种方式了。
简单点儿还是
EnableEventValidation="false"

确保你的web.config 有Connectstr值

写在web.config中

后台获取的时候用

configurationManager.connectionString["Connectstr"].ToString()

Web.config中加入

XML code

<connectionStrings> <add name="Connectstr" connectionString="Data Source=.;Initial Catalog=数据库名字;User ID=账号;Password=密码" providerName="System.Data.SqlClient" /> </connectionStrings>