Witam,
Mam stworzoną procedurę składową która po podania 3 parametrów powinna zwrócić odpowiednie dane. Na serwerze tak się dzieje, jednak kiedy chcę zrobić egzekucję tejże prodecudy w mojej aplikacji, Combobox nadal jest pusty. Używam modelu MVVM i wiąże Comboboxa z procedurą w moim ViewModel. Stored Procedure zaimportowany jest przez Entity Framework. Tak to wygląda - klasa sp po zaimportowaniu:
Imports System
Imports System.Collections.Generic
Partial Public Class sp_Grab_Activities_Result
Public Property FirstActivity As String
Public Property SecondActivity As String
Public Property BlockAct As Nullable(Of Boolean)
End Class
VIewModel:
Public Class EmployeeViewModel
Inherits NotifyPropertyChanged
Dim mw As MainWindow = DirectCast(Application.Current.MainWindow, MainWindow)
Private _MRU As String = "D236-ES DHL-EMEA"
Private _MAR As String = "BPA (DHL)"
Private _TOW As String = "Support Functions"
Private _First As New CustomObservableCollection(Of sp_Grab_Activities_Result)
Private _Employee As EmployeeViewModel
Private _selectedFirst As sp_Grab_Activities_Result
Public Property EmplView() As EmployeeViewModel
Get
Return _Employee
End Get
Set(value As EmployeeViewModel)
_Employee = value
OnPropertyChanged("EmplView")
End Set
End Property
Public Property MRU() As string
Get
Return _MRU
End Get
Set(value As String)
_MRU = value
OnPropertyChanged("MRU")
End Set
End Property
Public Property MAR() As String
Get
Return _MAR
End Get
Set(value As String)
_MAR = value
OnPropertyChanged("MAR")
End Set
End Property
Public Property TOW() As String
Get
Return _TOW
End Get
Set(value As String)
_TOW = value
OnPropertyChanged("TOW")
End Set
End Property
Public Property First() As CustomObservableCollection(Of sp_Grab_Activities_Result)
Get
Return _First
End Get
Set(value As CustomObservableCollection(Of sp_Grab_Activities_Result))
_First = value
OnPropertyChanged("First")
End Set
End Property
Public Property SelectedFirst() As sp_Grab_Activities_Result
Get
Return _selectedFirst
End Get
Set(value As sp_Grab_Activities_Result)
_selectedFirst = value
OnPropertyChanged("SelectedFirst")
End Set
End Property
Public Sub FillFirstActivity()
Using context As New TimerConn
Dim sql As String = "sp_Grab_Activities @MRU, @Market, @Tower"
Dim param1 As New SqlParameter("@MRU", MRU())
Dim param2 As New SqlParameter("@Market", MAR())
Dim param3 As New SqlParameter("@Tower", TOW())
Dim result = context.Database.SqlQuery(Of sp_Grab_Activities_Result)(sql, param1, param2, param3).FirstOrDefault
_First.Add(result)
End Using
End Sub
I XAML:
<ComboBox ItemsSource="{Binding First}" SelectedItem="{Binding SelectedFirst}"/>
Niestety, nic sie nie wyświetla... Nie wiem, gdzie może być problem.
Bardzo dziękuję za wsparcie.
C# 
