I have a dockpane which presents some information from a standalone-table. All examples I found Map.GetStandaloneTable. However during startup - in particular when the dockpane and its related module are initialized - there is no such map: protected override bool Initialize ( ) { QueuedTask . Run ( ( ) = > { var map = // MapView.Active is null at this point var table = map . GetStandaloneTable ( "MyTable" ) ; // do something with the table } ) ) ; return true ; } Is there a way to load a table without the map being fully loaded? Alternativly I would initialize the module when the map is fully loadedwhich assumes there is an event which I can register.

I solved my problem with the table by registering for the MapViewInitializedEvent: protected override bool Initialize ( ) { MapViewInitializedEvent . Subscribe ( x = > QueuedTask . Run ( ( ) = > { var table = x . MapView . Map . GetStandaloneTable ( . . . ) ; this . _myList . AddRange ( /* get data from table */ ) ; } return true ; } However I still stumble on presenting the tables information within my dockpane, which is attached to the modules MyList-property: internal class Dockpane1ViewModel : DockPane { public ReadOnlyObservableCollection MyList => Module1.MyList; } From my understanding the Modules Initialize-method is called as soon as my dopckpane is first shown. As the MyList-property within MyModule is initialized within its constructor: class Module1 : Module { public ReadOnlyObservableCollection Reservation > MyList { get ; } = new ReadOnlyObservableCollection Reservation > ( _myList ) ; protected override bool Initialize ( ) { . . . } } both Dockpane1ViewModel.MyList and Module1.MyList should reference the exact same collection. Thus when my list is updated within Module1, this should be reflected in the ViewModel and thus in the pane. Or am I missing some binding from DockpaneViewmodel.MyList to Module.Mylist? After all my solution now looks like this: //Module1.cs private readonly ObservableCollection Reservation > _myList = new ObservableCollection Reservation > ( ) ; public ReadOnlyObservableCollection Reservation > MyList { get ; } = new ReadOnlyObservableCollection Reservation > ( this . _myList ) ; protected override bool Initialize ( ) { MapViewInitializedEvent . Subscribe ( x = > QueuedTask . Run ( ( ) = > { var table = x . MapView . Map . GetStandaloneTable ( . . . ) ; this . _myList . AddRange ( /* get data from table */ ) ; } return true ; } // Dockpane1ViewModel.cs public ReadOnlyObservableCollection Reservation > MyList { get ; } = Module1 . Current . MyList ; private readonly object m_LockObject = new object ( ) ; public Dockpane1ViewModel ( ) { BindingOperations . EnableCollectionSynchronization ( this . MyList , this . m_LockObject ) ; } // Reservation.cs public class Reservation : INotifyPropertyChanged { public string Name { get = > _name ; set { _name = value ; this . OnPropertyChanged ( nameof ( Name ) ) ; } } public event PropertyChangedEventHandler PropertyChanged ; /// protected virtual void OnPropertyChanged ( [ CallerMemberName ] string propertyName = null ) { PropertyChanged ? . Invoke ( this , new PropertyChangedEventArgs ( propertyName ) ) ; } } And finally within some command I update a Reservation: // MyCommand.cs protected override void OnClick ( ) { QueuedTask . Run ( ( ) = > Module . Current . MyList . First ( ) . Name = "MyNewName" ) ; } The key here was just three points: * our collection itself implements INotifyCollectionChanged and thus fires event when items are added/removed * our items implement INotifyPropertyChanged so we get an event when a member within our data-object is updated * we need to bind the list to our view using BindingOperations.EnableCollectionSynchronization(this.MyList, this.m_LockObject because the items are modified on another thread, and thus the events would never get to the UI.

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initialize module when map loaded

CarstenSchumann

I have a dockpane which presents some information from a standalone-table. All examples I found Map.GetStandaloneTable. However during startup - in particular when the dockpane and its related module are initialized - there is no such map:

<SPAN class="keyword token">protected</SPAN> <SPAN class="keyword token">override</SPAN> <SPAN class="keyword token">bool</SPAN> <SPAN class="token function">Initialize</SPAN><SPAN class="punctuation token">(</SPAN><SPAN class="punctuation token">)</SPAN>
<SPAN class="punctuation token">{</SPAN>
	QueuedTask<SPAN class="punctuation token">.</SPAN><SPAN class="token function">Run</SPAN><SPAN class="punctuation token">(</SPAN><SPAN class="punctuation token">(</SPAN><SPAN class="punctuation token">)</SPAN> <SPAN class="operator token">=</SPAN><SPAN class="operator token">></SPAN> 
	<SPAN class="punctuation token">{</SPAN>
		<SPAN class="keyword token">var</SPAN> map <SPAN class="operator token">=</SPAN> <SPAN class="comment token">// MapView.Active is null at this point</SPAN>
		<SPAN class="keyword token">var</SPAN> table <SPAN class="operator token">=</SPAN> map<SPAN class="punctuation token">.</SPAN><SPAN class="token function">GetStandaloneTable</SPAN><SPAN class="punctuation token">(</SPAN><SPAN class="string token">"MyTable"</SPAN><SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">;</SPAN>
		<SPAN class="comment token">// do something with the table</SPAN>
	<SPAN class="punctuation token">}</SPAN><SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">;</SPAN>
	<SPAN class="keyword token">return</SPAN> <SPAN class="keyword token">true</SPAN><SPAN class="punctuation token">;</SPAN>
<SPAN class="punctuation token">}</SPAN>‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍<SPAN class="line-numbers-rows"><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN></SPAN>

Is there a way to load a table without the map being fully loaded? Alternativly I would initialize the module when the map is fully loadedwhich assumes there is an event which I can register.

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Accepted answers

CarstenSchumann

I solved my problem with the table by registering for the MapViewInitializedEvent:

<SPAN class="keyword token">protected</SPAN> <SPAN class="keyword token">override</SPAN> <SPAN class="keyword token">bool</SPAN> <SPAN class="token function">Initialize</SPAN><SPAN class="punctuation token">(</SPAN><SPAN class="punctuation token">)</SPAN>
<SPAN class="punctuation token">{</SPAN>
	MapViewInitializedEvent<SPAN class="punctuation token">.</SPAN><SPAN class="token function">Subscribe</SPAN><SPAN class="punctuation token">(</SPAN>x <SPAN class="operator token">=</SPAN><SPAN class="operator token">></SPAN> QueuedTask<SPAN class="punctuation token">.</SPAN><SPAN class="token function">Run</SPAN><SPAN class="punctuation token">(</SPAN><SPAN class="punctuation token">(</SPAN><SPAN class="punctuation token">)</SPAN> <SPAN class="operator token">=</SPAN><SPAN class="operator token">></SPAN> 
	<SPAN class="punctuation token">{</SPAN>
		<SPAN class="keyword token">var</SPAN> table <SPAN class="operator token">=</SPAN> x<SPAN class="punctuation token">.</SPAN>MapView<SPAN class="punctuation token">.</SPAN>Map<SPAN class="punctuation token">.</SPAN><SPAN class="token function">GetStandaloneTable</SPAN><SPAN class="punctuation token">(</SPAN><SPAN class="punctuation token">.</SPAN><SPAN class="punctuation token">.</SPAN><SPAN class="punctuation token">.</SPAN><SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">;</SPAN>
		<SPAN class="keyword token">this</SPAN><SPAN class="punctuation token">.</SPAN>_myList<SPAN class="punctuation token">.</SPAN><SPAN class="token function">AddRange</SPAN><SPAN class="punctuation token">(</SPAN><SPAN class="comment token">/* get data from table */</SPAN><SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">;</SPAN>
	<SPAN class="punctuation token">}</SPAN>
	<SPAN class="keyword token">return</SPAN> <SPAN class="keyword token">true</SPAN><SPAN class="punctuation token">;</SPAN>
<SPAN class="punctuation token">}</SPAN>‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍<SPAN class="line-numbers-rows"><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN></SPAN>

However I still stumble on presenting the tables information within my dockpane, which is attached to the modules MyList-property:

internal class Dockpane1ViewModel : DockPane
{
	public ReadOnlyObservableCollection<Reservation> MyList => Module1.MyList;
}‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍<SPAN class="line-numbers-rows"><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN></SPAN>

From my understanding the Modules Initialize-method is called as soon as my dopckpane is first shown. As the MyList-property within MyModule is initialized within its constructor:

<SPAN class="keyword token">class</SPAN> <SPAN class="token class-name">Module1</SPAN> <SPAN class="punctuation token">:</SPAN> Module
<SPAN class="punctuation token">{</SPAN>
	<SPAN class="keyword token">public</SPAN> ReadOnlyObservableCollection<SPAN class="operator token"><</SPAN>Reservation<SPAN class="operator token">></SPAN> MyList <SPAN class="punctuation token">{</SPAN> <SPAN class="keyword token">get</SPAN><SPAN class="punctuation token">;</SPAN> <SPAN class="punctuation token">}</SPAN> <SPAN class="operator token">=</SPAN> <SPAN class="keyword token">new</SPAN> <SPAN class="token class-name">ReadOnlyObservableCollection</SPAN><SPAN class="operator token"><</SPAN>Reservation<SPAN class="operator token">></SPAN><SPAN class="punctuation token">(</SPAN>_myList<SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">;</SPAN>
	<SPAN class="keyword token">protected</SPAN> <SPAN class="keyword token">override</SPAN> <SPAN class="keyword token">bool</SPAN> <SPAN class="token function">Initialize</SPAN><SPAN class="punctuation token">(</SPAN><SPAN class="punctuation token">)</SPAN> <SPAN class="punctuation token">{</SPAN> <SPAN class="punctuation token">.</SPAN><SPAN class="punctuation token">.</SPAN><SPAN class="punctuation token">.</SPAN> <SPAN class="punctuation token">}</SPAN>
<SPAN class="punctuation token">}</SPAN>‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍<SPAN class="line-numbers-rows"><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN></SPAN>

both Dockpane1ViewModel.MyList and Module1.MyList should reference the exact same collection. Thus when my list is updated within Module1, this should be reflected in the ViewModel and thus in the pane. Or am I missing some binding from DockpaneViewmodel.MyList to Module.Mylist?

After all my solution now looks like this:

<SPAN class="comment token">//Module1.cs</SPAN>

<SPAN class="keyword token">private</SPAN> <SPAN class="keyword token">readonly</SPAN> ObservableCollection<SPAN class="operator token"><</SPAN>Reservation<SPAN class="operator token">></SPAN> _myList<SPAN class="operator token">=</SPAN> <SPAN class="keyword token">new</SPAN> <SPAN class="token class-name">ObservableCollection</SPAN><SPAN class="operator token"><</SPAN>Reservation<SPAN class="operator token">></SPAN><SPAN class="punctuation token">(</SPAN><SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">;</SPAN>
<SPAN class="keyword token">public</SPAN> ReadOnlyObservableCollection<SPAN class="operator token"><</SPAN>Reservation<SPAN class="operator token">></SPAN> MyList<SPAN class="punctuation token">{</SPAN> <SPAN class="keyword token">get</SPAN><SPAN class="punctuation token">;</SPAN> <SPAN class="punctuation token">}</SPAN> <SPAN class="operator token">=</SPAN> <SPAN class="keyword token">new</SPAN> <SPAN class="token class-name">ReadOnlyObservableCollection</SPAN><SPAN class="operator token"><</SPAN>Reservation<SPAN class="operator token">></SPAN><SPAN class="punctuation token">(</SPAN><SPAN class="keyword token">this</SPAN><SPAN class="punctuation token">.</SPAN>_myList<SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">;</SPAN>


<SPAN class="keyword token">protected</SPAN> <SPAN class="keyword token">override</SPAN> <SPAN class="keyword token">bool</SPAN> <SPAN class="token function">Initialize</SPAN><SPAN class="punctuation token">(</SPAN><SPAN class="punctuation token">)</SPAN>
<SPAN class="punctuation token">{</SPAN>
	MapViewInitializedEvent<SPAN class="punctuation token">.</SPAN><SPAN class="token function">Subscribe</SPAN><SPAN class="punctuation token">(</SPAN>x <SPAN class="operator token">=</SPAN><SPAN class="operator token">></SPAN> QueuedTask<SPAN class="punctuation token">.</SPAN><SPAN class="token function">Run</SPAN><SPAN class="punctuation token">(</SPAN><SPAN class="punctuation token">(</SPAN><SPAN class="punctuation token">)</SPAN> <SPAN class="operator token">=</SPAN><SPAN class="operator token">></SPAN> 
	<SPAN class="punctuation token">{</SPAN>
		<SPAN class="keyword token">var</SPAN> table <SPAN class="operator token">=</SPAN> x<SPAN class="punctuation token">.</SPAN>MapView<SPAN class="punctuation token">.</SPAN>Map<SPAN class="punctuation token">.</SPAN><SPAN class="token function">GetStandaloneTable</SPAN><SPAN class="punctuation token">(</SPAN><SPAN class="punctuation token">.</SPAN><SPAN class="punctuation token">.</SPAN><SPAN class="punctuation token">.</SPAN><SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">;</SPAN>
		<SPAN class="keyword token">this</SPAN><SPAN class="punctuation token">.</SPAN>_myList<SPAN class="punctuation token">.</SPAN><SPAN class="token function">AddRange</SPAN><SPAN class="punctuation token">(</SPAN><SPAN class="comment token">/* get data from table */</SPAN><SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">;</SPAN>
	<SPAN class="punctuation token">}</SPAN>
	<SPAN class="keyword token">return</SPAN> <SPAN class="keyword token">true</SPAN><SPAN class="punctuation token">;</SPAN>
<SPAN class="punctuation token">}</SPAN>‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍<SPAN class="line-numbers-rows"><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN></SPAN>

<SPAN class="comment token">// Dockpane1ViewModel.cs</SPAN>


<SPAN class="keyword token">public</SPAN> ReadOnlyObservableCollection<SPAN class="operator token"><</SPAN>Reservation<SPAN class="operator token">></SPAN> MyList <SPAN class="punctuation token">{</SPAN> <SPAN class="keyword token">get</SPAN><SPAN class="punctuation token">;</SPAN> <SPAN class="punctuation token">}</SPAN> <SPAN class="operator token">=</SPAN> Module1<SPAN class="punctuation token">.</SPAN>Current<SPAN class="punctuation token">.</SPAN>MyList <SPAN class="punctuation token">;</SPAN>

<SPAN class="keyword token">private</SPAN> <SPAN class="keyword token">readonly</SPAN> <SPAN class="keyword token">object</SPAN> m_LockObject <SPAN class="operator token">=</SPAN> <SPAN class="keyword token">new</SPAN> <SPAN class="token class-name">object</SPAN><SPAN class="punctuation token">(</SPAN><SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">;</SPAN>
<SPAN class="keyword token">public</SPAN> <SPAN class="token function">Dockpane1ViewModel</SPAN><SPAN class="punctuation token">(</SPAN><SPAN class="punctuation token">)</SPAN>
<SPAN class="punctuation token">{</SPAN>
	BindingOperations<SPAN class="punctuation token">.</SPAN><SPAN class="token function">EnableCollectionSynchronization</SPAN><SPAN class="punctuation token">(</SPAN><SPAN class="keyword token">this</SPAN><SPAN class="punctuation token">.</SPAN>MyList<SPAN class="punctuation token">,</SPAN> <SPAN class="keyword token">this</SPAN><SPAN class="punctuation token">.</SPAN>m_LockObject<SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">;</SPAN>
<SPAN class="punctuation token">}</SPAN>‍‍‍‍‍‍‍‍‍‍<SPAN class="line-numbers-rows"><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN></SPAN>

<SPAN class="comment token">// Reservation.cs</SPAN>

<SPAN class="keyword token">public</SPAN> <SPAN class="keyword token">class</SPAN> <SPAN class="token class-name">Reservation</SPAN> <SPAN class="punctuation token">:</SPAN> INotifyPropertyChanged
<SPAN class="punctuation token">{</SPAN>
	<SPAN class="keyword token">public</SPAN> <SPAN class="keyword token">string</SPAN> Name
	<SPAN class="punctuation token">{</SPAN>
		<SPAN class="keyword token">get</SPAN> <SPAN class="operator token">=</SPAN><SPAN class="operator token">></SPAN> _name<SPAN class="punctuation token">;</SPAN>
		<SPAN class="keyword token">set</SPAN>
		<SPAN class="punctuation token">{</SPAN>
			_name <SPAN class="operator token">=</SPAN> <SPAN class="keyword token">value</SPAN><SPAN class="punctuation token">;</SPAN>
			<SPAN class="keyword token">this</SPAN><SPAN class="punctuation token">.</SPAN><SPAN class="token function">OnPropertyChanged</SPAN><SPAN class="punctuation token">(</SPAN><SPAN class="token function">nameof</SPAN><SPAN class="punctuation token">(</SPAN>Name<SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">;</SPAN>
		<SPAN class="punctuation token">}</SPAN>
	<SPAN class="punctuation token">}</SPAN>

	<SPAN class="keyword token">public</SPAN> <SPAN class="keyword token">event</SPAN> PropertyChangedEventHandler PropertyChanged<SPAN class="punctuation token">;</SPAN>

	<SPAN class="comment token">/// <inheritDoc /></SPAN>
	<SPAN class="keyword token">protected</SPAN> <SPAN class="keyword token">virtual</SPAN> <SPAN class="keyword token">void</SPAN> <SPAN class="token function">OnPropertyChanged</SPAN><SPAN class="punctuation token">(</SPAN><SPAN class="punctuation token">[</SPAN>CallerMemberName<SPAN class="punctuation token">]</SPAN> <SPAN class="keyword token">string</SPAN> propertyName <SPAN class="operator token">=</SPAN> <SPAN class="keyword token">null</SPAN><SPAN class="punctuation token">)</SPAN>
	<SPAN class="punctuation token">{</SPAN>
		PropertyChanged<SPAN class="operator token">?</SPAN><SPAN class="punctuation token">.</SPAN><SPAN class="token function">Invoke</SPAN><SPAN class="punctuation token">(</SPAN><SPAN class="keyword token">this</SPAN><SPAN class="punctuation token">,</SPAN> <SPAN class="keyword token">new</SPAN> <SPAN class="token class-name">PropertyChangedEventArgs</SPAN><SPAN class="punctuation token">(</SPAN>propertyName<SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">;</SPAN>
	<SPAN class="punctuation token">}</SPAN>
<SPAN class="punctuation token">}</SPAN>‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍<SPAN class="line-numbers-rows"><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN></SPAN>

And finally within some command I update a Reservation:

<SPAN class="comment token">// MyCommand.cs</SPAN>

<SPAN class="keyword token">protected</SPAN> <SPAN class="keyword token">override</SPAN> <SPAN class="keyword token">void</SPAN> <SPAN class="token function">OnClick</SPAN><SPAN class="punctuation token">(</SPAN><SPAN class="punctuation token">)</SPAN>
<SPAN class="punctuation token">{</SPAN>
	QueuedTask<SPAN class="punctuation token">.</SPAN><SPAN class="token function">Run</SPAN><SPAN class="punctuation token">(</SPAN><SPAN class="punctuation token">(</SPAN><SPAN class="punctuation token">)</SPAN> <SPAN class="operator token">=</SPAN><SPAN class="operator token">></SPAN> Module<SPAN class="punctuation token">.</SPAN>Current<SPAN class="punctuation token">.</SPAN>MyList<SPAN class="punctuation token">.</SPAN><SPAN class="token function">First</SPAN><SPAN class="punctuation token">(</SPAN><SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">.</SPAN>Name <SPAN class="operator token">=</SPAN> <SPAN class="string token">"MyNewName"</SPAN><SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">;</SPAN>
<SPAN class="punctuation token">}</SPAN>‍‍‍‍‍‍<SPAN class="line-numbers-rows"><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN></SPAN>

The key here was just three points:

our collection itself implements INotifyCollectionChanged and thus fires event when items are added/removed
our items implement INotifyPropertyChanged so we get an event when a member within our data-object is updated
we need to bind the list to our view using BindingOperations.EnableCollectionSynchronization(this.MyList, this.m_LockObject because the items are modified on another thread, and thus the events would never get to the UI.

All comments

Wolf

What is the type of this.MyList? in general there are two issues complicating the work here:

1) When you add a new row to your list (or whatever class you are using) an event has to be triggered (via INotifyPropertyChanged) that notifies the UI of the change, so that the UI can refresh the display to show the new row's data.

2) When you add a new row from a non UI thread (which is likely what you're doing), the add event notification doesn't go to the UI thread (by default it only goes to the thread where it's been triggered), unless you implement something like:

BindingOperations<SPAN class="" style="color: #999999; border: 0px; font-weight: inherit;">.</SPAN><SPAN class="" style="color: #d74444; border: 0px; font-weight: inherit;">EnableCollectionSynchronization</SPAN>

i will make a small sample and try this out.

- Wolf

CarstenSchumann

If the Reservation-type also implements INotifyPropertyChanged, our ReadOnlyObservableCollection will automatically recieve the events and update the UI.

CarstenSchumann

"Thus when my list is updated within Module1, this should be reflected in the ViewModel and thus in the pane. Or am I missing some binding from DockpaneViewmodel.MyList to Module.Mylist?" Assuming we have a binding for our viewmodels list:

BindingOperations<SPAN class="punctuation token">.</SPAN><SPAN class="token function">EnableCollectionSynchronization</SPAN><SPAN class="punctuation token">(</SPAN><SPAN class="keyword token">this</SPAN><SPAN class="punctuation token">.</SPAN>MyList<SPAN class="punctuation token">,</SPAN> <SPAN class="keyword token">this</SPAN><SPAN class="punctuation token">.</SPAN>m_LockObject<SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">;</SPAN><SPAN class="line-numbers-rows"><SPAN>‍</SPAN></SPAN>

updating the list within the Module will be reflected within the dockpane. However this seems to apply only for deletes/inserts into that list. Modifications on a single element within that list are not notified.

CarstenSchumann

I solved my problem with the table by registering for the MapViewInitializedEvent:

<SPAN class="keyword token">protected</SPAN> <SPAN class="keyword token">override</SPAN> <SPAN class="keyword token">bool</SPAN> <SPAN class="token function">Initialize</SPAN><SPAN class="punctuation token">(</SPAN><SPAN class="punctuation token">)</SPAN>
<SPAN class="punctuation token">{</SPAN>
	MapViewInitializedEvent<SPAN class="punctuation token">.</SPAN><SPAN class="token function">Subscribe</SPAN><SPAN class="punctuation token">(</SPAN>x <SPAN class="operator token">=</SPAN><SPAN class="operator token">></SPAN> QueuedTask<SPAN class="punctuation token">.</SPAN><SPAN class="token function">Run</SPAN><SPAN class="punctuation token">(</SPAN><SPAN class="punctuation token">(</SPAN><SPAN class="punctuation token">)</SPAN> <SPAN class="operator token">=</SPAN><SPAN class="operator token">></SPAN> 
	<SPAN class="punctuation token">{</SPAN>
		<SPAN class="keyword token">var</SPAN> table <SPAN class="operator token">=</SPAN> x<SPAN class="punctuation token">.</SPAN>MapView<SPAN class="punctuation token">.</SPAN>Map<SPAN class="punctuation token">.</SPAN><SPAN class="token function">GetStandaloneTable</SPAN><SPAN class="punctuation token">(</SPAN><SPAN class="punctuation token">.</SPAN><SPAN class="punctuation token">.</SPAN><SPAN class="punctuation token">.</SPAN><SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">;</SPAN>
		<SPAN class="keyword token">this</SPAN><SPAN class="punctuation token">.</SPAN>_myList<SPAN class="punctuation token">.</SPAN><SPAN class="token function">AddRange</SPAN><SPAN class="punctuation token">(</SPAN><SPAN class="comment token">/* get data from table */</SPAN><SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">;</SPAN>
	<SPAN class="punctuation token">}</SPAN>
	<SPAN class="keyword token">return</SPAN> <SPAN class="keyword token">true</SPAN><SPAN class="punctuation token">;</SPAN>
<SPAN class="punctuation token">}</SPAN>‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍<SPAN class="line-numbers-rows"><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN></SPAN>

However I still stumble on presenting the tables information within my dockpane, which is attached to the modules MyList-property:

internal class Dockpane1ViewModel : DockPane
{
	public ReadOnlyObservableCollection<Reservation> MyList => Module1.MyList;
}‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍<SPAN class="line-numbers-rows"><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN></SPAN>

From my understanding the Modules Initialize-method is called as soon as my dopckpane is first shown. As the MyList-property within MyModule is initialized within its constructor:

<SPAN class="keyword token">class</SPAN> <SPAN class="token class-name">Module1</SPAN> <SPAN class="punctuation token">:</SPAN> Module
<SPAN class="punctuation token">{</SPAN>
	<SPAN class="keyword token">public</SPAN> ReadOnlyObservableCollection<SPAN class="operator token"><</SPAN>Reservation<SPAN class="operator token">></SPAN> MyList <SPAN class="punctuation token">{</SPAN> <SPAN class="keyword token">get</SPAN><SPAN class="punctuation token">;</SPAN> <SPAN class="punctuation token">}</SPAN> <SPAN class="operator token">=</SPAN> <SPAN class="keyword token">new</SPAN> <SPAN class="token class-name">ReadOnlyObservableCollection</SPAN><SPAN class="operator token"><</SPAN>Reservation<SPAN class="operator token">></SPAN><SPAN class="punctuation token">(</SPAN>_myList<SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">;</SPAN>
	<SPAN class="keyword token">protected</SPAN> <SPAN class="keyword token">override</SPAN> <SPAN class="keyword token">bool</SPAN> <SPAN class="token function">Initialize</SPAN><SPAN class="punctuation token">(</SPAN><SPAN class="punctuation token">)</SPAN> <SPAN class="punctuation token">{</SPAN> <SPAN class="punctuation token">.</SPAN><SPAN class="punctuation token">.</SPAN><SPAN class="punctuation token">.</SPAN> <SPAN class="punctuation token">}</SPAN>
<SPAN class="punctuation token">}</SPAN>‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍<SPAN class="line-numbers-rows"><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN></SPAN>

After all my solution now looks like this:

<SPAN class="comment token">//Module1.cs</SPAN>

<SPAN class="keyword token">private</SPAN> <SPAN class="keyword token">readonly</SPAN> ObservableCollection<SPAN class="operator token"><</SPAN>Reservation<SPAN class="operator token">></SPAN> _myList<SPAN class="operator token">=</SPAN> <SPAN class="keyword token">new</SPAN> <SPAN class="token class-name">ObservableCollection</SPAN><SPAN class="operator token"><</SPAN>Reservation<SPAN class="operator token">></SPAN><SPAN class="punctuation token">(</SPAN><SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">;</SPAN>
<SPAN class="keyword token">public</SPAN> ReadOnlyObservableCollection<SPAN class="operator token"><</SPAN>Reservation<SPAN class="operator token">></SPAN> MyList<SPAN class="punctuation token">{</SPAN> <SPAN class="keyword token">get</SPAN><SPAN class="punctuation token">;</SPAN> <SPAN class="punctuation token">}</SPAN> <SPAN class="operator token">=</SPAN> <SPAN class="keyword token">new</SPAN> <SPAN class="token class-name">ReadOnlyObservableCollection</SPAN><SPAN class="operator token"><</SPAN>Reservation<SPAN class="operator token">></SPAN><SPAN class="punctuation token">(</SPAN><SPAN class="keyword token">this</SPAN><SPAN class="punctuation token">.</SPAN>_myList<SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">;</SPAN>


<SPAN class="keyword token">protected</SPAN> <SPAN class="keyword token">override</SPAN> <SPAN class="keyword token">bool</SPAN> <SPAN class="token function">Initialize</SPAN><SPAN class="punctuation token">(</SPAN><SPAN class="punctuation token">)</SPAN>
<SPAN class="punctuation token">{</SPAN>
	MapViewInitializedEvent<SPAN class="punctuation token">.</SPAN><SPAN class="token function">Subscribe</SPAN><SPAN class="punctuation token">(</SPAN>x <SPAN class="operator token">=</SPAN><SPAN class="operator token">></SPAN> QueuedTask<SPAN class="punctuation token">.</SPAN><SPAN class="token function">Run</SPAN><SPAN class="punctuation token">(</SPAN><SPAN class="punctuation token">(</SPAN><SPAN class="punctuation token">)</SPAN> <SPAN class="operator token">=</SPAN><SPAN class="operator token">></SPAN> 
	<SPAN class="punctuation token">{</SPAN>
		<SPAN class="keyword token">var</SPAN> table <SPAN class="operator token">=</SPAN> x<SPAN class="punctuation token">.</SPAN>MapView<SPAN class="punctuation token">.</SPAN>Map<SPAN class="punctuation token">.</SPAN><SPAN class="token function">GetStandaloneTable</SPAN><SPAN class="punctuation token">(</SPAN><SPAN class="punctuation token">.</SPAN><SPAN class="punctuation token">.</SPAN><SPAN class="punctuation token">.</SPAN><SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">;</SPAN>
		<SPAN class="keyword token">this</SPAN><SPAN class="punctuation token">.</SPAN>_myList<SPAN class="punctuation token">.</SPAN><SPAN class="token function">AddRange</SPAN><SPAN class="punctuation token">(</SPAN><SPAN class="comment token">/* get data from table */</SPAN><SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">;</SPAN>
	<SPAN class="punctuation token">}</SPAN>
	<SPAN class="keyword token">return</SPAN> <SPAN class="keyword token">true</SPAN><SPAN class="punctuation token">;</SPAN>
<SPAN class="punctuation token">}</SPAN>‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍<SPAN class="line-numbers-rows"><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN></SPAN>

<SPAN class="comment token">// Dockpane1ViewModel.cs</SPAN>


<SPAN class="keyword token">public</SPAN> ReadOnlyObservableCollection<SPAN class="operator token"><</SPAN>Reservation<SPAN class="operator token">></SPAN> MyList <SPAN class="punctuation token">{</SPAN> <SPAN class="keyword token">get</SPAN><SPAN class="punctuation token">;</SPAN> <SPAN class="punctuation token">}</SPAN> <SPAN class="operator token">=</SPAN> Module1<SPAN class="punctuation token">.</SPAN>Current<SPAN class="punctuation token">.</SPAN>MyList <SPAN class="punctuation token">;</SPAN>

<SPAN class="keyword token">private</SPAN> <SPAN class="keyword token">readonly</SPAN> <SPAN class="keyword token">object</SPAN> m_LockObject <SPAN class="operator token">=</SPAN> <SPAN class="keyword token">new</SPAN> <SPAN class="token class-name">object</SPAN><SPAN class="punctuation token">(</SPAN><SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">;</SPAN>
<SPAN class="keyword token">public</SPAN> <SPAN class="token function">Dockpane1ViewModel</SPAN><SPAN class="punctuation token">(</SPAN><SPAN class="punctuation token">)</SPAN>
<SPAN class="punctuation token">{</SPAN>
	BindingOperations<SPAN class="punctuation token">.</SPAN><SPAN class="token function">EnableCollectionSynchronization</SPAN><SPAN class="punctuation token">(</SPAN><SPAN class="keyword token">this</SPAN><SPAN class="punctuation token">.</SPAN>MyList<SPAN class="punctuation token">,</SPAN> <SPAN class="keyword token">this</SPAN><SPAN class="punctuation token">.</SPAN>m_LockObject<SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">;</SPAN>
<SPAN class="punctuation token">}</SPAN>‍‍‍‍‍‍‍‍‍‍<SPAN class="line-numbers-rows"><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN></SPAN>

<SPAN class="comment token">// Reservation.cs</SPAN>

<SPAN class="keyword token">public</SPAN> <SPAN class="keyword token">class</SPAN> <SPAN class="token class-name">Reservation</SPAN> <SPAN class="punctuation token">:</SPAN> INotifyPropertyChanged
<SPAN class="punctuation token">{</SPAN>
	<SPAN class="keyword token">public</SPAN> <SPAN class="keyword token">string</SPAN> Name
	<SPAN class="punctuation token">{</SPAN>
		<SPAN class="keyword token">get</SPAN> <SPAN class="operator token">=</SPAN><SPAN class="operator token">></SPAN> _name<SPAN class="punctuation token">;</SPAN>
		<SPAN class="keyword token">set</SPAN>
		<SPAN class="punctuation token">{</SPAN>
			_name <SPAN class="operator token">=</SPAN> <SPAN class="keyword token">value</SPAN><SPAN class="punctuation token">;</SPAN>
			<SPAN class="keyword token">this</SPAN><SPAN class="punctuation token">.</SPAN><SPAN class="token function">OnPropertyChanged</SPAN><SPAN class="punctuation token">(</SPAN><SPAN class="token function">nameof</SPAN><SPAN class="punctuation token">(</SPAN>Name<SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">;</SPAN>
		<SPAN class="punctuation token">}</SPAN>
	<SPAN class="punctuation token">}</SPAN>

	<SPAN class="keyword token">public</SPAN> <SPAN class="keyword token">event</SPAN> PropertyChangedEventHandler PropertyChanged<SPAN class="punctuation token">;</SPAN>

	<SPAN class="comment token">/// <inheritDoc /></SPAN>
	<SPAN class="keyword token">protected</SPAN> <SPAN class="keyword token">virtual</SPAN> <SPAN class="keyword token">void</SPAN> <SPAN class="token function">OnPropertyChanged</SPAN><SPAN class="punctuation token">(</SPAN><SPAN class="punctuation token">[</SPAN>CallerMemberName<SPAN class="punctuation token">]</SPAN> <SPAN class="keyword token">string</SPAN> propertyName <SPAN class="operator token">=</SPAN> <SPAN class="keyword token">null</SPAN><SPAN class="punctuation token">)</SPAN>
	<SPAN class="punctuation token">{</SPAN>
		PropertyChanged<SPAN class="operator token">?</SPAN><SPAN class="punctuation token">.</SPAN><SPAN class="token function">Invoke</SPAN><SPAN class="punctuation token">(</SPAN><SPAN class="keyword token">this</SPAN><SPAN class="punctuation token">,</SPAN> <SPAN class="keyword token">new</SPAN> <SPAN class="token class-name">PropertyChangedEventArgs</SPAN><SPAN class="punctuation token">(</SPAN>propertyName<SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">;</SPAN>
	<SPAN class="punctuation token">}</SPAN>
<SPAN class="punctuation token">}</SPAN>‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍<SPAN class="line-numbers-rows"><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN></SPAN>

And finally within some command I update a Reservation:

<SPAN class="comment token">// MyCommand.cs</SPAN>

<SPAN class="keyword token">protected</SPAN> <SPAN class="keyword token">override</SPAN> <SPAN class="keyword token">void</SPAN> <SPAN class="token function">OnClick</SPAN><SPAN class="punctuation token">(</SPAN><SPAN class="punctuation token">)</SPAN>
<SPAN class="punctuation token">{</SPAN>
	QueuedTask<SPAN class="punctuation token">.</SPAN><SPAN class="token function">Run</SPAN><SPAN class="punctuation token">(</SPAN><SPAN class="punctuation token">(</SPAN><SPAN class="punctuation token">)</SPAN> <SPAN class="operator token">=</SPAN><SPAN class="operator token">></SPAN> Module<SPAN class="punctuation token">.</SPAN>Current<SPAN class="punctuation token">.</SPAN>MyList<SPAN class="punctuation token">.</SPAN><SPAN class="token function">First</SPAN><SPAN class="punctuation token">(</SPAN><SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">.</SPAN>Name <SPAN class="operator token">=</SPAN> <SPAN class="string token">"MyNewName"</SPAN><SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">;</SPAN>
<SPAN class="punctuation token">}</SPAN>‍‍‍‍‍‍<SPAN class="line-numbers-rows"><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN></SPAN>

The key here was just three points:

our collection itself implements INotifyCollectionChanged and thus fires event when items are added/removed
our items implement INotifyPropertyChanged so we get an event when a member within our data-object is updated
we need to bind the list to our view using BindingOperations.EnableCollectionSynchronization(this.MyList, this.m_LockObject because the items are modified on another thread, and thus the events would never get to the UI.

Wolf

You can use: ActiveMapViewChangedEvent to subscribe to an event triggered when there is a newly 'incoming' mapview. You can do a github search for 'ActiveMapViewChangedEvent' on arcgis-pro-sdk community samples to find samples snippets for this pattern.

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