I'm new to WPF And I have a question. I have the Organization module:
class Organization : ObservableObject
{
public string OrganizationName { get; set; }
}
I have the ViewModel of the Organization:
class OrganizationViewModel : ObservableObject
{
int _count = 0;
public OrganizationViewModel()
{
Organization = new Organization {OrganizationName = "New Organization"};
}
public Organization Organization { get; set; }
public string OrganizationName
{
get { return Organization.OrganizationName; }
set
{
if(Organization.OrganizationName != value)
{
Organization.OrganizationName = value;
RaisePropertyChanged("OrganizationName");
}
}
}
And I have the ViewModel of all the Organizations:
class AllOrganizationsViewModel
{
private ObservableCollection<OrganizationViewModel> m_organizations = new ObservableCollection<OrganizationViewModel>();
public ObservableCollection<OrganizationViewModel> Organizations
{
get { return m_organizations; }
set { m_organizations = value; }
}
public AllOrganizationsViewModel()
{
for(int i = 0; i < 3; ++i)
{
m_organizations.Add(new OrganizationViewModel());
}
}
void AddOrganizationNameExecute()
{
m_organizations.Add(new OrganizationViewModel());
}
bool CanAddOrganizationNameExecute()
{
return true;
}
public ICommand AddOrganization{get{return new RelayCommand(AddOrganizationNameExecute, CanAddOrganizationNameExecute);}}
}
And this is the MainWindow.xaml:
<Window x:Class="DataIntegrityChecker.MainWindow"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:local="clr-namespace:DataIntegrityChecker.ViewModels" Title="MainWindow" Height="350" Width="525">
<Window.DataContext>
<local:AllOrganizationsViewModel />
</Window.DataContext>
<Grid>
<Grid.RowDefinitions>
<RowDefinition Height="Auto" />
<RowDefinition Height="285*" />
</Grid.RowDefinitions>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="156" />
<ColumnDefinition Width="347*" />
</Grid.ColumnDefinitions>
<Label Content="Organization: " Margin="0,0,44,0" />
<Button Grid.Row="1" Name="UpdateOrganizations" Content="Update Organization Name" Command="{Binding AddOrganization}" Margin="0,0,0,262" HorizontalAlignment="Left" Width="156" />
<ComboBox Grid.Column="1" Grid.Row="1" Height="23" HorizontalAlignment="Left" Name="comboBox1" VerticalAlignment="Top" Width="155" ItemsSource="{Binding Organizations}" />
</Grid>
</Window>
Now, what I get in the ComboBox items is the name of the class OrganizationViewModel but what I need is the OrganizationName string. It seems to me that I have some binding to OrganizationName that's missing but I can't figure out where to add if (if that's the issue). I assume I can make a collection of strings with the names of the organizations I need. But in the future I will need more properties in the Organization Class so that's the way I need it to work.
I will appreciate any help
You need to add DisplayMemberPath
:
<ComboBox Grid.Column="1" Grid.Row="1" Height="23" HorizontalAlignment="Left" Name="comboBox1" VerticalAlignment="Top" Width="155" ItemsSource="{Binding Organizations}"
DisplayMemberPath="OrganizationName"/>