What is the proper way to work with the IsSelected property for strings in a dockpane listbox?
764
1
06-07-2019 10:15 AM
by
I have a listbox which is on a dockpane. I am able to add a list of strings to populate the listbox. I can get the selected items using the ListBox.SelectedItems method. However, I am having issues setting IsSelected = True.
The issue is that the items I am adding are all strings and therefore do not have an IsSelected property. However, if I try adding the items as ListBoxItems, they do not show up in the listbox.
Can someone please take a look at my code and let me know what I am doing wrong or possibly provide an example of adding ListBoxItems that are strings to a listbox on a dockpane? Thanks so much in advance.
xaml:
<ListBox Name="myListBox"
Width="Auto" Height="300"
Background="{DynamicResource Esri_BackgroundPressedBrush}"
SelectionMode="Multiple"
ItemsSource="{Binding Assets, Mode=TwoWay}">
</ListBox>xaml.cs
public Dockpane1View()
{
InitializeComponent();
foreach (ListBoxItem item in myListBox.Items)
{
//if item meets certain condition
item.IsSelected = true;
}}ViewModel.cs
protected Dockpane1ViewModel() {
//AssetSource is just a list of strings
foreach (var asset in AssetSource)
{
_Assets.Add(asset);
};
//If I change the string type of the observable collections to ListBoxItem, nothing shows up in the listbox
private ObservableCollection<string> _Assets = new ObservableCollection<string>();
public ObservableCollection<string> Assets
{
set
{
SetProperty(ref _Assets, value, () => Assets);
//NotifyPropertyChanged(() => Assets);
}
get { return _Assets; }
}
