asp.net控制台程序 帮我看看什么毛病
行 19: {行 20: SqlCommand command = new SqlCommand(queryString, connection);
行 21: connection.Open();
行 22: SqlDataReader reader = command.ExecuteReader();
行 23: while (reader.Read())
源文件: c:\Documents and Settings\DELL\桌面\p215\Default.aspx.cs 行: 21
堆栈跟踪:
| [SqlException (0x80131904): 无法打开登录所请求的数据库 "Northwind"。登录失败。用户 'SINGLE\DELL' 登录失败。] System.Data.SqlClient.SqlInternalConnection.OnError(SqlException exception, Boolean breakConnection) +115 System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning(TdsParserStateObject stateObj) +346 System.Data.SqlClient.TdsParser.Run(RunBehavior runBehavior, SqlCommand cmdHandler, SqlDataReader dataStream, BulkCopySimpleResultSet bulkCopyHandler, TdsParserStateObject stateObj) +3244 System.Data.SqlClient.SqlInternalConnectionTds.CompleteLogin(Boolean enlistOK) +56 System.Data.SqlClient.SqlInternalConnectionTds.OpenLoginEnlist(SqlConnection owningObject, SqlConnectionString connectionOptions, String newPassword, Boolean redirectedUserInstance) +1083 System.Data.SqlClient.SqlInternalConnectionTds..ctor(DbConnectionPoolIdentity identity, SqlConnectionString connectionOptions, Object providerInfo, String newPassword, SqlConnection owningObject, Boolean redirectedUserInstance) +272 System.Data.SqlClient.SqlConnectionFactory.CreateConnection(DbConnectionOptions options, Object poolGroupProviderInfo, DbConnectionPool pool, DbConnection owningConnection) +687 System.Data.ProviderBase.DbConnectionFactory.CreatePooledConnection(DbConnection owningConnection, DbConnectionPool pool, DbConnectionOptions options) +82 System.Data.ProviderBase.DbConnectionPool.CreateObject(DbConnection owningObject) +558 System.Data.ProviderBase.DbConnectionPool.UserCreateRequest(DbConnection owningObject) +126 System.Data.ProviderBase.DbConnectionPool.GetConnection(DbConnection owningObject) +651 System.Data.ProviderBase.DbConnectionFactory.GetConnection(DbConnection owningConnection) +160 System.Data.ProviderBase.DbConnectionClosed.OpenConnection(DbConnection outerConnection, DbConnectionFactory connectionFactory) +122 System.Data.SqlClient.SqlConnection.Open() +229 _Default.Page_Load(Object sender, EventArgs e) in c:\Documents and Settings\DELL\桌面\p215\Default.aspx.cs:21 System.Web.Util.CalliHelper.EventArgFunctionCaller(IntPtr fp, Object o, Object t, EventArgs e) +31 System.Web.Util.CalliEventHandlerDelegateProxy.Callback(Object sender, EventArgs e) +68 System.Web.UI.Control.OnLoad(EventArgs e) +88 System.Web.UI.Control.LoadRecursive() +74 System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +3035 |
补充：using System;
using System.Data;
using System.Configuration;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using System.Data.SqlClient;public partial class _Default : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
string connectionString = "Data Source=localhost;Initial Catalog=Northwind;Integrated Security=True;User ID=DELL ;Password=";
string queryString = "SELECT LastName,FirstName FROM Employees";
using (SqlConnection connection =new SqlConnection(connectionString))
{
SqlCommand command = new SqlCommand(queryString, connection);
connection.Open();
SqlDataReader reader = command.ExecuteReader();
while (reader.Read())
{
Response.Write(reader[0]);
Response.Write(reader[1]);
Response.Write("<br>");
}
reader.Close();
connection.Close();
}
}
}
追问：using System;
using System.Data;
using System.Configuration;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using System.Data.SqlClient;public partial class _Default : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
string connectionString = "Data Source=localhost;Initial Catalog=Northwind;Integrated Security=True;User ID=DELL ;Password=";
string queryString = "SELECT LastName,FirstName FROM Employees";
using (SqlConnection connection =new SqlConnection(connectionString))
{
SqlCommand command = new SqlCommand(queryString, connection);
connection.Open();
SqlDataReader reader = command.ExecuteReader();
while (reader.Read())
{
Response.Write(reader[0]);
Response.Write(reader[1]);
Response.Write("<br>");
}
reader.Close();
connection.Close();
}
}
}
