Web Uygulaması Hata: Sıra birden fazla öğe içeriyor

İyi çalışıyor, ancak artık çalışmıyor bir web uygulaması var. Hatta geliştirme bilgisayarımda (yerel bir veritabanına bağlanır) çalışır, ancak üretimde değil. Bu yüzden geliştirme bilgisayarımda, bağlantı dizesini üretim veritabanına vurmak için değiştirdim ve Hata: Sekans birden fazla öğe içeriyor.Web Uygulaması Hata: Sıra birden fazla öğe içeriyor

Veritabanıyla ilgili bir şey olması gerektiğine inanıyorum, ama bunun ne olduğunu nasıl anlayacağımı bilmiyorum, bunun içinde binlerce satırlık veri var.

Verileri alan linq ifadesi aşağıdadır. Bunu nasıl düzeltebileceğime dair bir fikrin var mı?

protected void lnqItems_Selecting(object sender, LinqDataSourceSelectEventArgs e) 
{ 
    DocksideValidationDataContext db = new DocksideValidationDataContext(); 

    DateTime startDate = (radStartDate.SelectedDate.HasValue) 
     ? radStartDate.SelectedDate.Value 
     : DateTime.Parse("1/1/1900"); 
    DateTime endDate = (radEndDate.SelectedDate.HasValue) 
     ? radEndDate.SelectedDate.Value 
     : DateTime.Parse("1/1/2500"); 
    int prevalNum = (txtSummaryFormNumber.Text.Trim() == "") 
     ? -1 
     : Convert.ToInt32(txtSummaryFormNumber.Text.Trim()); 

    e.Result = (from x in db.SummaryForms 
       where (x.SummaryFormId == prevalNum 
        || (prevalNum == -1) 
        && (x.SampleDate >= startDate.Date) 
        && (x.SampleDate <= endDate.Date) 
        && (x.StateId == Convert.ToInt32(ddlState.SelectedValue))) 
       orderby (x.SampleDate) descending 
       select x).AsEnumerable() 
         .Select(x => new 
         { 
          x.SummaryFormId, 
          x.SampleDate, 
          DockName = x.Dock.Code + " " + x.Dock.Name, 
          Status = GetStatus(x), 
          Color = GetStatusColor(GetStatus(x)) 
         }) 
         .Where(x => ((prevalNum != -1 
          || cboFilter.Text == "All") 
          || (x.Status == cboFilter.Text))); 
}

peşin

yılında

Teşekkür Hayır bana öyle geldi, ama yararlı olacağını düşünmüyordu. İşte burada:

System.InvalidOperationException: Sequence contains more than one element 

Generated: Sat, 24 Sep 2011 15:57:41 GMT 

System.Web.HttpUnhandledException (0x80004005): Exception of type 'System.Web.HttpUnhandledException' was thrown. ---> System.Reflection.TargetInvocationException: Exception has been thrown by the target of an invocation. ---> System.InvalidOperationException: Sequence contains more than one element 
    at System.Linq.Enumerable.SingleOrDefault[TSource](IEnumerable`1 source) 
    at System.Data.Linq.EntityRef`1.get_Entity() 
    at Secure_SummaryForms.<GetStatus>b__4(SummaryFormVessel z) 
    at System.Linq.Enumerable.WhereEnumerableIterator`1.MoveNext() 
    at System.Linq.Enumerable.Any[TSource](IEnumerable`1 source) 
    at Secure_SummaryForms.GetStatus(SummaryForm x) 
    at Secure_SummaryForms.<lnqItems_Selecting>b__0(SummaryForm x) 
    at System.Linq.Enumerable.WhereSelectEnumerableIterator`2.MoveNext() 
    at System.Linq.Enumerable.WhereEnumerableIterator`1.MoveNext() 
    at System.Collections.Generic.List`1..ctor(IEnumerable`1 collection) 
    at System.Linq.Enumerable.ToList[TSource](IEnumerable`1 source) 
    --- End of inner exception stack trace --- 
    at System.RuntimeMethodHandle._InvokeMethodFast(IRuntimeMethodInfo method, Object target, Object[] arguments, SignatureStruct& sig, MethodAttributes methodAttributes, RuntimeType typeOwner) 
    at System.RuntimeMethodHandle.InvokeMethodFast(IRuntimeMethodInfo method, Object target, Object[] arguments, Signature sig, MethodAttributes methodAttributes, RuntimeType typeOwner) 
    at System.Reflection.RuntimeMethodInfo.Invoke(Object obj, BindingFlags invokeAttr, Binder binder, Object[] parameters, CultureInfo culture, Boolean skipVisibilityChecks) 
    at System.Reflection.RuntimeMethodInfo.Invoke(Object obj, BindingFlags invokeAttr, Binder binder, Object[] parameters, CultureInfo culture) 
    at System.Web.UI.WebControls.QueryableDataSourceHelper.ToList(IQueryable query, Type dataObjectType) 
    at System.Web.UI.WebControls.LinqDataSourceView.ExecuteSelect(DataSourceSelectArguments arguments) 
    at System.Web.UI.DataSourceView.Select(DataSourceSelectArguments arguments, DataSourceViewSelectCallback callback) 
    at System.Web.UI.WebControls.DataBoundControl.PerformSelect() 
    at System.Web.UI.WebControls.BaseDataBoundControl.DataBind() 
    at System.Web.UI.WebControls.GridView.DataBind() 
    at System.Web.UI.WebControls.BaseDataBoundControl.EnsureDataBound() 
    at System.Web.UI.WebControls.CompositeDataBoundControl.CreateChildControls() 
    at System.Web.UI.Control.EnsureChildControls() 
    at System.Web.UI.WebControls.GridView.get_Rows() 
    at Secure_SummaryForms.Page_Load(Object sender, EventArgs e) 
    at System.Web.Util.CalliHelper.EventArgFunctionCaller(IntPtr fp, Object o, Object t, EventArgs e) 
    at System.Web.Util.CalliEventHandlerDelegateProxy.Callback(Object sender, EventArgs e) 
    at System.Web.UI.Control.OnLoad(EventArgs e) 
    at System.Web.UI.Control.LoadRecursive() 
    at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) 
    at System.Web.UI.Page.HandleError(Exception e) 
    at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) 
    at System.Web.UI.Page.ProcessRequest(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) 
    at System.Web.UI.Page.ProcessRequest() 
    at System.Web.UI.Page.ProcessRequestWithNoAssert(HttpContext context) 
    at System.Web.UI.Page.ProcessRequest(HttpContext context) 
    at ASP.secure_summaryforms_aspx.ProcessRequest(HttpContext context) 
    at System.Web.HttpApplication.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() 
    at System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) 


Server Variables 
Name Value 
ALL_HTTP HTTP_CONNECTION:keep-alive HTTP_ACCEPT:text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8 HTTP_ACCEPT_CHARSET:ISO-8859-1,utf-8;q=0.7,*;q=0.7 HTTP_ACCEPT_ENCODING:gzip, deflate HTTP_ACCEPT_LANGUAGE:en-us,en;q=0.5 HTTP_COOKIE:ASP.NET_SessionId=yka231rdr1r3yqv0nmbhz1nh; .POWERBASECOOKIE=5FC2CF98E578B444ACA6B75A382EAEF31EFC781DA11AF7884B360A82E544539BEC5E5BB62DD012A1D6E7005869FFF8A205D632FB724AB01EFDBED78A9A035C76B22250F8FF0BCC3AD9AB56C4EEC44C05159110DF95A6344888CB3300B642E312F3B152475CD4FA631C0000699763AE173978375D598154CE85AEF83C81E1FAF82842DF48F1D9AC97872F09FFCA33B22B; .ASPXROLES=IS-YIxYt7iXk72HXdLNE18SBwgsEd2wo3D4GfRI72jYdSmmLhUxfzBMMpFYXg5CjiowldcwSKolBjaP8jrMUgh5-rQWjQhUTY02VS3IhD5Xcav_B-d-MiaumYD-0JMWFR9-1xcP2eHQXLpnZlXzcZXhwh6G2mEDVoNZGls8MNK8bAVlo2WuTqReMmk1GTyu5duoZzh_fCs1S6AZuhWY9bwdi28kA_lfoyp4SCm2zLgNddjhbsLmgN5oopdPo9-oONS7Z5br51qYu5sS9vq-hm_TbHhHL_W7XbIKo3pJccZ1-VXkLbtIAiS_hSccjFmk1f3ttWhUnmULJVQaNNepOHofbivSEQvhQQxX-f5hpGI4K-9FqcJ-kFAjw93CrnZ2rtu6n8i3tblPEDQeAbd1JkSJjmKGpSH_4PVh1MsXNDZwSSnbBHqTaO9iKiVAvUWvANLbBxmOc3w0SfP4DUbLtl3YZVCbG_JWr5s0f5Is8scr7Nc-AxK2HEzjNVber1EofJK48eLaVJPyvm-858Yhtp5XgqMeJQUwh5l9LYeZNbc8kqxPG7kOl0Zq7q8407I230 HTTP_HOST:docksidevalidation.org HTTP_REFERER:http://docksidevalidation.org/secure/default.aspx HTTP_USER_AGENT:Mozilla/5.0 (Windows NT 6.1; WOW64; rv:6.0.2) Gecko/20100101 Firefox/6.0.2 
ALL_RAW Connection: keep-alive Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8 Accept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.7 Accept-Encoding: gzip, deflate Accept-Language: en-us,en;q=0.5 Cookie: ASP.NET_SessionId=yka231rdr1r3yqv0nmbhz1nh; .POWERBASECOOKIE=5FC2CF98E578B444ACA6B75A382EAEF31EFC781DA11AF7884B360A82E544539BEC5E5BB62DD012A1D6E7005869FFF8A205D632FB724AB01EFDBED78A9A035C76B22250F8FF0BCC3AD9AB56C4EEC44C05159110DF95A6344888CB3300B642E312F3B152475CD4FA631C0000699763AE173978375D598154CE85AEF83C81E1FAF82842DF48F1D9AC97872F09FFCA33B22B; .ASPXROLES=IS-YIxYt7iXk72HXdLNE18SBwgsEd2wo3D4GfRI72jYdSmmLhUxfzBMMpFYXg5CjiowldcwSKolBjaP8jrMUgh5-rQWjQhUTY02VS3IhD5Xcav_B-d-MiaumYD-0JMWFR9-1xcP2eHQXLpnZlXzcZXhwh6G2mEDVoNZGls8MNK8bAVlo2WuTqReMmk1GTyu5duoZzh_fCs1S6AZuhWY9bwdi28kA_lfoyp4SCm2zLgNddjhbsLmgN5oopdPo9-oONS7Z5br51qYu5sS9vq-hm_TbHhHL_W7XbIKo3pJccZ1-VXkLbtIAiS_hSccjFmk1f3ttWhUnmULJVQaNNepOHofbivSEQvhQQxX-f5hpGI4K-9FqcJ-kFAjw93CrnZ2rtu6n8i3tblPEDQeAbd1JkSJjmKGpSH_4PVh1MsXNDZwSSnbBHqTaO9iKiVAvUWvANLbBxmOc3w0SfP4DUbLtl3YZVCbG_JWr5s0f5Is8scr7Nc-AxK2HEzjNVber1EofJK48eLaVJPyvm-858Yhtp5XgqMeJQUwh5l9LYeZNbc8kqxPG7kOl0Zq7q8407I230 Host: docksidevalidation.org Referer: http://docksidevalidation.org/secure/default.aspx User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:6.0.2) Gecko/20100101 Firefox/6.0.2 
APPL_MD_PATH /LM/W3SVC/1154673598/Root 
APPL_PHYSICAL_PATH C:\Inetpub\Websites\DocksideValidation\Website\ 
AUTH_TYPE Forms 
AUTH_USER admin 
AUTH_PASSWORD  
LOGON_USER 
REMOTE_USER admin 
CERT_COOKIE 
CERT_FLAGS 
CERT_ISSUER 
CERT_KEYSIZE  
CERT_SECRETKEYSIZE 
CERT_SERIALNUMBER  
CERT_SERVER_ISSUER 
CERT_SERVER_SUBJECT 
CERT_SUBJECT  
CONTENT_LENGTH 0 
CONTENT_TYPE  
GATEWAY_INTERFACE CGI/1.1 
HTTPS off 
HTTPS_KEYSIZE  
HTTPS_SECRETKEYSIZE 
HTTPS_SERVER_ISSUER 
HTTPS_SERVER_SUBJECT  
INSTANCE_ID 1154673598 
INSTANCE_META_PATH /LM/W3SVC/1154673598 
LOCAL_ADDR 192.168.1.131 
PATH_INFO /secure/SummaryForms.aspx 
PATH_TRANSLATED C:\Inetpub\Websites\DocksideValidation\Website\secure\SummaryForms.aspx 
QUERY_STRING  
REMOTE_ADDR 66.186.243.74 
REMOTE_HOST 66.186.243.74 
REMOTE_PORT 50339 
REQUEST_METHOD GET 
SCRIPT_NAME /secure/SummaryForms.aspx 
SERVER_NAME docksidevalidation.org 
SERVER_PORT 80 
SERVER_PORT_SECURE 0 
SERVER_PROTOCOL HTTP/1.1 
SERVER_SOFTWARE Microsoft-IIS/6.0 
URL /secure/SummaryForms.aspx 
HTTP_CONNECTION keep-alive 
HTTP_ACCEPT text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8 
HTTP_ACCEPT_CHARSET ISO-8859-1,utf-8;q=0.7,*;q=0.7 
HTTP_ACCEPT_ENCODING gzip, deflate 
HTTP_ACCEPT_LANGUAGE en-us,en;q=0.5 
HTTP_COOKIE ASP.NET_SessionId=yka231rdr1r3yqv0nmbhz1nh; .POWERBASECOOKIE=5FC2CF98E578B444ACA6B75A382EAEF31EFC781DA11AF7884B360A82E544539BEC5E5BB62DD012A1D6E7005869FFF8A205D632FB724AB01EFDBED78A9A035C76B22250F8FF0BCC3AD9AB56C4EEC44C05159110DF95A6344888CB3300B642E312F3B152475CD4FA631C0000699763AE173978375D598154CE85AEF83C81E1FAF82842DF48F1D9AC97872F09FFCA33B22B; .ASPXROLES=IS-YIxYt7iXk72HXdLNE18SBwgsEd2wo3D4GfRI72jYdSmmLhUxfzBMMpFYXg5CjiowldcwSKolBjaP8jrMUgh5-rQWjQhUTY02VS3IhD5Xcav_B-d-MiaumYD-0JMWFR9-1xcP2eHQXLpnZlXzcZXhwh6G2mEDVoNZGls8MNK8bAVlo2WuTqReMmk1GTyu5duoZzh_fCs1S6AZuhWY9bwdi28kA_lfoyp4SCm2zLgNddjhbsLmgN5oopdPo9-oONS7Z5br51qYu5sS9vq-hm_TbHhHL_W7XbIKo3pJccZ1-VXkLbtIAiS_hSccjFmk1f3ttWhUnmULJVQaNNepOHofbivSEQvhQQxX-f5hpGI4K-9FqcJ-kFAjw93CrnZ2rtu6n8i3tblPEDQeAbd1JkSJjmKGpSH_4PVh1MsXNDZwSSnbBHqTaO9iKiVAvUWvANLbBxmOc3w0SfP4DUbLtl3YZVCbG_JWr5s0f5Is8scr7Nc-AxK2HEzjNVber1EofJK48eLaVJPyvm-858Yhtp5XgqMeJQUwh5l9LYeZNbc8kqxPG7kOl0Zq7q8407I230 
HTTP_HOST docksidevalidation.org 
HTTP_REFERER http://docksidevalidation.org/secure/default.aspx 
HTTP_USER_AGENT Mozilla/5.0 (Windows NT 6.1; WOW64; rv:6.0.2) Gecko/20100101 Firefox/6.0.2 

Powered by ELMAH, version 1.1.11517.2009. Copyright (c) 2004-9, Atif Aziz. All rights reserved. Licensed under Apache License, Version 2.0.

kaynak

2011-09-24 user962926

Aldığınız gerçek, tam, özel durumu göndermeniz mümkün mü? –

Tam hata ve stacktrace? –

Veri bağlam sınıfınıza eklenmiş herhangi bir DataLoadOptions yok mu? –

istisnası Linq ile sorguladığınız seti eşleşen birden fazla öğe içerdiğini önerir ve böyle bir durumda bir istisna atar SingleOrDefault çağrıda bulunuyorlar.

FirstOrDefault kullanmak yerine, sorgunun ilk eşleşmesini almak isteyebilirsiniz.

Yapıştırması zor olsa da, yapıştırılan kod örneğinizde SingleOrDefault numaralı çağrıyı göremiyorum.

kaynak

2011-09-26 15:27:43 AndrewC

'umda herhangi bir DataLoadOptions'ım olduğuna inanmıyorum Tıpkı sizin gibi, çağrı yığınında 'SingleOrDefault'unu görüyorum, ancak onun kodunu değil. Benzer bir sorun yaşıyorum; kodumda 'SingleOrDefault', ancak LINQ sayısız 'MoveNext' yöntemi çağrıldığında, 'SingleOrDefault' olarak adlandırılır ve neden hiçbir fikrim yok, ya da herhangi bir kod görünürlüğü (belki de açmam gerekir. Net Framework kaynak adımı MS 'kodu için). – Zarepheth

Sorunu çözdüm! Senin emriniz için teşekkürler. Sorun veritabanı eklenmiş bir yinelenen kayıt oldu ve program geri veri çekerek sadece bir rekoru geri almak için varsayalım ve 2 oluyordu. Teşekkürler!

kaynak

2011-09-26 16:24:15 user962926

sonra neden AndrewC'nin cevabını kabul etmediniz. İnantığım mükemmel cevap. – Scorpion

Web Uygulaması Hata: Sıra birden fazla öğe içeriyor

cevap

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