Aucun mappage existe à partir du type d'objet System.Collections.Generic.List

Question

Erreur: System.ArgumentException a eu lieu HResult = 0x80070057 message = Aucun mappage existe à partir du type d'objet System.Collections.Generic.List`1 [[System.Object, mscorlib, Version = 4.0.0.0, Culture = neutre, PublicKeyToken = b77a5c561934e089]] à un type natif de fournisseur géré connu. Source = StackTrace:

public class PatInsuListItem : ErrorInfo 
{ 
    public int Insuspan_I { get; set; } 
    public int Insu_Id { get; set; } 
    public string Date_From { get; set; } 
    public string Date_To { get; set; } 
    public string Group_Name { get; set; } 
    public string Short_Name { get; set; } 
    public string Note { get; set; } 
    public string Plan_Name { get; set; } 
    public string Insur_num { get; set; } 
    public string Touch_Date { get; set; } 
    public string Touch_By { get; set; } 
    public string InsuranceRankdescr { get; set; } 
    public string COBFlag { get; set; } 
    public string InsStatus { get; set; } 
    public int Alert { get; set; } 
    public string EndProcessIndicator { get; set; } 
    public string LinkedAuthFlag { get; set; } 
} 

public class PatEFInsuList : ErrorInfo 
{ 
    public PatEFInsuList() { 
     list = new List<PatInsuListItem>(); 
    } 
    public List<PatInsuListItem> list ; 
    public int Count { get; set; } 
} 

var _patlist = new PatEFInsuList();

 SqlParameter _count = new SqlParameter("@count", SqlDbType.Int) { Direction = System.Data.ParameterDirection.Output }; 

     IList<object> _paramList = new List<object>(); 
     _paramList.Add(new SqlParameter("@patientId", SqlDbType.Int) { Value = parms.PatientId }); 
     _paramList.Add(new SqlParameter("@orderBy", SqlDbType.VarChar) { Value = parms.OrderBy }); 
     _paramList.Add(new SqlParameter("@pageSize", SqlDbType.Int) { Value = parms.PageSize }); 
     _paramList.Add(new SqlParameter("@pageIndex", SqlDbType.Int) { Value = parms.PageIndex }); 
     _paramList.Add(new SqlParameter("@disallowedInsu", SqlDbType.VarChar) { Value = parms.DisallowedInsu }); 
     _paramList.Add(new SqlParameter("@initialId", SqlDbType.Int) { Value = parms.InitialId }); 
     _paramList.Add(new SqlParameter("@initialCOBFlag", SqlDbType.Bit) { Value = parms.InitialCOBFlag }); 
     _paramList.Add(_count); 

     var _result = this.RepositoryContext.Database.SqlQuery<PatInsuListItem>("exec dbo.imc_Patient_RetrieveInsuranceCOBList @patientId, @orderBy, @pageSize, @pageIndex, @disallowedInsu, @initialId, @initialCOBFlag, @count OUT", _paramList); 

     _patlist.Count = _count.Value == null ? 0 : (int)_count.Value; 
     _patlist.list = _result.Select(t => new PatInsuListItem 
     { 
      Insuspan_I = t.Insuspan_I, 
      Insu_Id = t.Insu_Id, 
      Date_From = t.Date_From, 
      Date_To = t.Date_To, 
      Group_Name = t.Group_Name, 
      Short_Name = t.Short_Name, 
      Note = t.Note, 
      Plan_Name = t.Plan_Name, 
      Insur_num = t.Insur_num, 
      Touch_Date = t.Touch_Date, 
      Touch_By = t.Touch_By, 
      InsuranceRankdescr = t.InsuranceRankdescr, 
      COBFlag = t.COBFlag, 
      InsStatus = t.InsStatus, 
      Alert = t.Alert, 
      EndProcessIndicator = t.EndProcessIndicator, 
      LinkedAuthFlag = t.LinkedAuthFlag 
     }).ToList(); 

     return _patlist; 

Une erreur se produit sur la ligne 'ToList' pendant l'exécution. Le code compile bien. Les modèles ont une liste, donc je ne sais pas pourquoi l'erreur se produit.

Answer 1

Votre problème est ici:

IList<object> _paramList = new List<object>(); 

Vous ne pouvez pas passer dans un List<object>

Essayez ceci:

var _result = this.RepositoryContext.Database.SqlQuery<PatInsuListItem>("exec dbo.imc_Patient_RetrieveInsuranceCOBList @patientId, @orderBy, @pageSize, @pageIndex, @disallowedInsu, @initialId, @initialCOBFlag, @count OUT", 
     new SqlParameter("@patientId", SqlDbType.Int) { Value = parms.PatientId }, 
     new SqlParameter("@orderBy", SqlDbType.VarChar) { Value = parms.OrderBy }, 
     new SqlParameter("@pageSize", SqlDbType.Int) { Value = parms.PageSize }, 
     new SqlParameter("@pageIndex", SqlDbType.Int) { Value = parms.PageIndex }, 
     new SqlParameter("@disallowedInsu", SqlDbType.VarChar) { Value = parms.DisallowedInsu }, 
     new SqlParameter("@initialId", SqlDbType.Int) { Value = parms.InitialId }, 
     new SqlParameter("@initialCOBFlag", SqlDbType.Bit) { Value = parms.InitialCOBFlag }, 
     new SqlParameter("@count", SqlDbType.Int) { Value = _count } //this one you attempted to pass in just the int, not a SqlParameter 
    ); 

OU

Vous pouvez appeler alternativement .ToArray() sur votre précédente _paramList:

var _result = this.RepositoryContext.Database.SqlQuery<PatInsuListItem>("exec dbo.imc_Patient_RetrieveInsuranceCOBList @patientId, @orderBy, @pageSize, @pageIndex, @disallowedInsu, @initialId, @initialCOBFlag, @count OUT", 
       _paramList.ToArray());