为什么项目打不开？？ 哪位大神帮助一下 ，谢谢啦 急急急

不会修改，怎么办？

不能还原数据库 求大神指点

运行没问题 ，代码写的也非常好，美中不足的就是界面简单，不华丽。<img alt="微笑" src="/Content/xheditor_emot/default/smile.gif" />

调试 的时候出现这样的错误：<br/>用户 &#39;sa&#39; 登录失败。 <br/>说明: 执行当前 Web 请求期间，出现未处理的异常。请检查堆栈跟踪信息，以了解有关该错误以及代码中导致错误的出处的详细信息。 <br/><br/>异常详细信息: System.Data.SqlClient.SqlException: 用户 &#39;sa&#39; 登录失败。<br/><br/>源错误: <br/><br/><br/>行 53:&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; //连接本地计算机的HMS数据库<br/>行 54:&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; SqlConnection cn= new SqlConnection (strconn);<br/>行 55:&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; cn.Open ();<br/>行 56:&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; //构造SQL语句，该语句在Users表中检查用户名和密码是否正确<br/>行 57:&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; string mysql= &quot;select * from Users where Uid=&#39;&quot;+tbx_uid.Text +&quot;&#39;and UPassword=&#39;&quot;+tbx_upassword.Text +&quot;&#39;&quot;;<br/><br/><br/>源文件: g:\毕业设计\ch07HMS_51aspx\HMS\Default.aspx.cs&nbsp;&nbsp;&nbsp;&nbsp;行: 55 <br/><br/>堆栈跟踪: <br/><br/><br/>[SqlException (0x80131904): 用户 &#39;sa&#39; 登录失败。]<br/>&nbsp;&nbsp; System.Data.SqlClient.SqlInternalConnection.OnError(SqlException exception, Boolean breakConnection) +821651<br/>&nbsp;&nbsp; System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning(TdsParserStateObject stateObj) +186<br/>&nbsp;&nbsp; System.Data.SqlClient.TdsParser.Run(RunBehavior runBehavior, SqlCommand cmdHandler, SqlDataReader dataStream, BulkCopySimpleResultSet bulkCopyHandler, TdsParserStateObject stateObj) +1932<br/>&nbsp;&nbsp; System.Data.SqlClient.SqlInternalConnectionTds.CompleteLogin(Boolean enlistOK) +33<br/>&nbsp;&nbsp; System.Data.SqlClient.SqlInternalConnectionTds.AttemptOneLogin(ServerInfo serverInfo, String newPassword, Boolean ignoreSniOpenTimeout, Int64 timerExpire, SqlConnection owningObject) +172<br/>&nbsp;&nbsp; System.Data.SqlClient.SqlInternalConnectionTds.LoginNoFailover(String host, String newPassword, Boolean redirectedUserInstance, SqlConnection owningObject, SqlConnectionString connectionOptions, Int64 timerStart) +381<br/>&nbsp;&nbsp; System.Data.SqlClient.SqlInternalConnectionTds.OpenLoginEnlist(SqlConnection owningObject, SqlConnectionString connectionOptions, String newPassword, Boolean redirectedUserInstance) +181<br/>&nbsp;&nbsp; System.Data.SqlClient.SqlInternalConnectionTds..ctor(DbConnectionPoolIdentity identity, SqlConnectionString connectionOptions, Object providerInfo, String newPassword, SqlConnection owningObject, Boolean redirectedUserInstance) +173<br/>&nbsp;&nbsp; System.Data.SqlClient.SqlConnectionFactory.CreateConnection(DbConnectionOptions options, Object poolGroupProviderInfo, DbConnectionPool pool, DbConnection owningConnection) +357<br/>&nbsp;&nbsp; System.Data.ProviderBase.DbConnectionFactory.CreatePooledConnection(DbConnection owningConnection, DbConnectionPool pool, DbConnectionOptions options) +30<br/>&nbsp;&nbsp; System.Data.ProviderBase.DbConnectionPool.CreateObject(DbConnection owningObject) +424<br/>&nbsp;&nbsp; System.Data.ProviderBase.DbConnectionPool.UserCreateRequest(DbConnection owningObject) +66<br/>&nbsp;&nbsp; System.Data.ProviderBase.DbConnectionPool.GetConnection(DbConnection owningObject) +494<br/>&nbsp;&nbsp; System.Data.ProviderBase.DbConnectionFactory.GetConnection(DbConnection owningConnection) +82<br/>&nbsp;&nbsp; System.Data.ProviderBase.DbConnectionClosed.OpenConnection(DbConnection outerConnection, DbConnectionFactory connectionFactory) +105<br/>&nbsp;&nbsp; System.Data.SqlClient.SqlConnection.Open() +111<br/>&nbsp;&nbsp; WMS._Default.btn_login_Click(Object sender, EventArgs e) in g:\毕业设计\ch07HMS_51aspx\HMS\Default.aspx.cs:55<br/>&nbsp;&nbsp; System.Web.UI.WebControls.Button.OnClick(EventArgs e) +105<br/>&nbsp;&nbsp; System.Web.UI.WebControls.Button.RaisePostBackEvent(String eventArgument) +107<br/>&nbsp;&nbsp; System.Web.UI.WebControls.Button.System.Web.UI.IPostBackEventHandler.RaisePostBackEvent(String eventArgument) +7<br/>&nbsp;&nbsp; System.Web.UI.Page.RaisePostBackEvent(IPostBackEventHandler sourceControl, String eventArgument) +11<br/>&nbsp;&nbsp; System.Web.UI.Page.RaisePostBackEvent(NameValueCollection postData) +33<br/>&nbsp;&nbsp; System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +5087<br/><br/><br/>请各位高手帮帮忙！万分感谢！

咋下载不了