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POSilverlight Combobox - Setting the SelectedItem MVVM
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  1. POSilverlight Combobox - Setting the SelectedItem MVVM
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    copied!<p>I have a ViewModel that sets the value for the "UserStructure" property. The problem is that the combobox wont bind to the value.</p> <pre><code>public class OwnerOccupierAccountViewModel : ViewModelBase { /// &lt;summary&gt; /// Load combobox structures /// &lt;/summary&gt; private readonly LoadOperation&lt;Structure&gt; _loadStructures; private readonly LoadOperation&lt;UnitOccupierDetail&gt; _loadUnitOccupierDetails; //public ICommand SaveAccountSettingsCommand { get; set; } #region Properties private ObservableCollection&lt;Structure&gt; _structures; public ObservableCollection&lt;Structure&gt; Structures { get { return _structures; } set { _structures = value; RaisePropertyChanged("Structures"); } } private Structure _userStructure; public Structure UserStructure { get { return _userStructure; } set { _userStructure = value; RaisePropertyChanged("SelectedStructure"); } } private UnitOccupierDetail _unitOccupierDetail; public UnitOccupierDetail UnitOccupierDetail { get { return _unitOccupierDetail; } set { _unitOccupierDetail = value; RaisePropertyChanged("UnitOccupierDetail"); } } #endregion public OwnerOccupierAccountViewModel() { // SaveAccountSettingsCommand = new DelegateCommand(SaveAccountSettings, CanSave); UserAccountContext _userAccountContext; if (!DesignerProperties.IsInDesignTool) { var loggedInUser = new Guid(WebContext.Current.User.UserID.ToString()); _userAccountContext = new UserAccountContext(); #region load structures _loadStructures = _userAccountContext.Load(_userAccountContext.GetStructuresQuery()); _loadStructures.Completed += _loadStructuresCompleted; #endregion #region load user data _loadUnitOccupierDetails = _userAccountContext.Load( _userAccountContext.GetUnitOccupierDetailsQuery().Where( u =&gt; u.UserIDFK == loggedInUser &amp;&amp; u.StructureFK == 92)); _loadUnitOccupierDetails.Completed += _loadUnitOccupierDetails_Completed; #endregion } } void _loadUnitOccupierDetails_Completed(object sender, EventArgs e) { _unitOccupierDetail= new UnitOccupierDetail(); _unitOccupierDetail = _loadUnitOccupierDetails.Entities.First(); _userStructure = _unitOccupierDetail.Structure; } void _loadStructuresCompleted(object sender, EventArgs e) { var theseStructures = new ObservableCollection&lt;Structure&gt;(_loadStructures.Entities); Structures = theseStructures; } //private void SaveAccountSettings(object param) //{ //} //private static bool CanSave(object param) //{ // return true; //} } &lt;ComboBox x:Name="cboApartments" ItemsSource='{Binding Structures, Mode=TwoWay}' DisplayMemberPath='StructureName' SelectedValuePath='IDStructure' SelectedItem='{Binding SelectedStructure,Mode=TwoWay}' Width="200" Height="25"&gt; </code></pre>
 

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