WPF组合框绑定选定值

我正在尝试使用以下数据格式进行绑定：

Public Structure ItemBase
    Property ID As String
    Property Description As String
End Structure

Namespace Classes
    Public Class StockEntityClass
        Implements INotifyPropertyChanged  
#Region "Property Variables"
        Property ID As String
        Property Namee As String
        Property Units As String
        Property ContactID As String
        Property SetCount As Integer
        Property VatOnMargin As Boolean
        Property Vat As Double
        Property Code As String
        Property _ContactNamee As String
#End Region

        Public Sub New()
            _IDValue = Now.ToString
            _NameeValue = ""
            _UnitsValue = "Pcs"
            _ContactIDValue = ""
            _SetCountValue = 0
            _VatOnMarginValue = False
            _VatValue = 14.5
            _CodeValue = ""
            _ContactNamee = ""
        End Sub    
    End Class
End Namespace

在我的wpf xaml窗口（DataContext to Stock Entity变量）中，我有一个绑定到BindingList（ItemBase）的组合框，用户将选择一个项目和该项目ID作为StockEntity.ContactID的关联

以下是xaml代码：

<ComboBox Name="VendorsComboBox" Grid.Row="2" Grid.Column="1" VerticalAlignment="Center" DisplayMemberPath="Description" SelectedItem="{Binding Path=CustomerID}"/>

其中StockEntityStack包含作为datacontext绑定到stock变量的UI部分。

---

请告诉我如何将xaml数据绑定到它。

试试这样的方法：

主窗口（XAML文件）：

MainViewModel文件：

   Imports System.ComponentModel

Public Class MainViewModel
    Implements INotifyPropertyChanged

#Region "Fields"
    Private _selectedContactID As String = String.Empty
#End Region


#Region "Property Variables"
    Property MySource As List(Of ItemBase) = New List(Of ItemBase)
    Public Property ContactID As String
        Get
            Return _selectedContactID
        End Get
        Set(ByVal value As String)
            _selectedContactID = value
            OnPropertyChanged("ContactID")
        End Set
    End Property
#End Region

    Public Sub New()
        MySource.Add(New ItemBase(1, "test1"))
        MySource.Add(New ItemBase(2, "test2"))
        MySource.Add(New ItemBase(3, "test3"))
        MySource.Add(New ItemBase(4, "test4"))
        MySource.Add(New ItemBase(5, "test5"))
    End Sub

    Public Event PropertyChanged As PropertyChangedEventHandler Implements INotifyPropertyChanged.PropertyChanged

    Protected Sub OnPropertyChanged(ByVal propertyName As String)
        RaiseEvent PropertyChanged(Me, New PropertyChangedEventArgs(propertyName))
    End Sub

End Class


Public Structure ItemBase
    Public Sub New( _
       ByVal _id As String,
       ByVal _description As String
       )
        ID = _id
        Description = _description
    End Sub
    Property ID As String
    Property Description As String
End Structure

---

不使用此代码，对该控件使用组合框选择更改事件不是很简单吗？@surpavan您想编写与MVVM模式兼容的代码吗？如果是，您必须将SelectedItem绑定到ViewModel中的变量，在另一种情况下，您可以使用SelectionChanged事件。感谢您，我不熟悉MVVM模式，我只是一个小时间的编码器。感谢您的支持，但我肯定会尝试研究MVVM。谢谢你抽出时间。

  <Window x:Class="MainWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        Title="MainWindow" Height="350" Width="525">
        <StackPanel>
            <ComboBox ItemsSource="{Binding MySource}" 
                      SelectedValue="{Binding ContactID}"
                      DisplayMemberPath="Description"
                      SelectedValuePath="ID"
                      Width="180" Height="25"
                      />

            <StackPanel Orientation="Horizontal" Margin="10" >
                <TextBlock Text="Selected ID:" />
                <TextBlock Text="{Binding ContactID}" />
            </StackPanel>
        </StackPanel>
    </Window>

Class MainWindow 
    Public Sub New()
        InitializeComponent()
        Me.DataContext = New MainViewModel()
    End Sub
End Class

   Imports System.ComponentModel

Public Class MainViewModel
    Implements INotifyPropertyChanged

#Region "Fields"
    Private _selectedContactID As String = String.Empty
#End Region


#Region "Property Variables"
    Property MySource As List(Of ItemBase) = New List(Of ItemBase)
    Public Property ContactID As String
        Get
            Return _selectedContactID
        End Get
        Set(ByVal value As String)
            _selectedContactID = value
            OnPropertyChanged("ContactID")
        End Set
    End Property
#End Region

    Public Sub New()
        MySource.Add(New ItemBase(1, "test1"))
        MySource.Add(New ItemBase(2, "test2"))
        MySource.Add(New ItemBase(3, "test3"))
        MySource.Add(New ItemBase(4, "test4"))
        MySource.Add(New ItemBase(5, "test5"))
    End Sub

    Public Event PropertyChanged As PropertyChangedEventHandler Implements INotifyPropertyChanged.PropertyChanged

    Protected Sub OnPropertyChanged(ByVal propertyName As String)
        RaiseEvent PropertyChanged(Me, New PropertyChangedEventArgs(propertyName))
    End Sub

End Class


Public Structure ItemBase
    Public Sub New( _
       ByVal _id As String,
       ByVal _description As String
       )
        ID = _id
        Description = _description
    End Sub
    Property ID As String
    Property Description As String
End Structure