ComponentOne Combobox Interactions MVVM

Question

I am working with ComponentOne WPF Controls with MVVM Pattern.

I have the following in my ViewModel:

 public ICommand ClientsEnter
        {
            get
            {
                if (this.m_ClientsEnter == null)
                {
                    this.m_ClientsEnter = new DelegateCommand<string>(ClientsLostFocusExecute, ClientsLostFocusCanExecute);
                }
                return m_ClientsEnter;
            }
        }

And an observable collection :

 public ObservableCollection<Client> Clients
        {
            get { return m_Clients; }
            set
            {
                m_Clients = value;
                RaisePropertyChanged("Clients");
            }
        }

in Xaml I have Added A ComponentOne Combo Box where I can enter ClientName Or ID and press enter to fire Event to execute ClientsEnter Command:

<Custom1:C1ComboBox  Grid.Row="2" Grid.Column="1" Height="24" Name="cmbClients" HorizontalAlignment="Left" VerticalAlignment="Center"
                ItemsSource="{Binding Clients, Mode=OneWay}" SelectedValuePath="ClientID" DisplayMemberPath="NameE" IsEditable="True"
                Text="Enter Client Name Or ID" SelectedValue="{Binding Path=Filter.ClientID, Mode=TwoWay}" MinWidth="150" Margin="0,2" Width="189">
              <i:Interaction.Triggers>
                <ei:KeyTrigger Key="Tab"  FiredOn="KeyUp" ActiveOnFocus="True" SourceName="cmbClients">
                  <i:InvokeCommandAction Command="{Binding ClientsEnter, Mode=OneWay}" CommandParameter="{Binding Text,ElementName=cmbClients}" CommandName="KeyDown"/>
                </ei:KeyTrigger>
              </i:Interaction.Triggers>
            </Custom1:C1ComboBox>

I need to know why it doesn't work, after pressing enter the clientID Disappears and nothing happens. Even the text="Enter Client Name Or ID" doesn't appear! Any ideas?

score 1 · Answer 1 · answered Aug 24 '13 at 00:16

After spending 2 days investigating this issue ,i discover that there is a bug in C1Combobox as i replaced it with telerik Comboxbox and add the same trigger without changing anything in xaml except the control and it works fine.

finally,i dont recommend C1 wpf controls

ComponentOne Combobox Interactions MVVM

1 Answers1