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Where to listen for OnRowChanged event

BrianBulla

Hi,

I'm trying to implement some code in an AddIn that will listen for Edit events, and then run some code. I'm using the following article to help (https://pro.arcgis.com/en/pro-app/sdk/api-reference/#topic9808.html) but I'm not sure where I am supposed to put this code.

Should I be creating a new AddIn for this, or can I just add the code to an existing AddIn? All users currently load the same Toolbar, which I have created an AddIn for. Can I just put the code in there??

Thanks,

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Accepted answers

Anonymous User

Hey Brian,

Yes with autoload true, the module starts to act an Arcobjects extension. Initialize will be called after the application starts but before a project is loaded and its maps, so you wont have any references. If you go down this route you have to listen to the project opened event and start your events from there.

I wrote a sample way back at 1.1 that shows an example of this that only subscribed to one layer. If you need to listen to all layers in all maps within a project, you'll need to do some loops. If you think users are likely to add or remove layers to the maps, you'll need to listen to that event too. Its all doable but is a pain to setup.

All comments

MarcusPolivirus

Hello Sean,

Thanks for putting me on the right path with the 'version differences' thing.

Did not know about that Github repo ProConcepts Geodatabase · Esri/arcgis-pro-sdk Wiki · GitHub but it really helps.

Will try asap, thanks again.

This other thread looks also promising.

Anonymous User

Marcus,

Modifies, Creates and deletes are only recorded for the 'operation' completed type.

The 'version differences' function in the UI and SDK may help.
You can also listen to row changes in the parent table but you would have to time it so you know the changes are coming from the post.

Post is an all or nothing operation so if it fails half way through, nothing will be updated.

MarcusPolivirus

Hello,

I'm trying to achieve almost the same as you.

After a "reconcile" then a "post", i want to list all changes posted to the "default" version (for all versioned layers).

So far I subscribed to EditCompletedEvent and then logs what's happening.

System.Diagnostics.Debug.WriteLine("Operation type = " + args.CompletedType);
System.Diagnostics.Debug.WriteLine("Creates: " + args.Creates.Values.Sum(list => list.Count).ToString());
System.Diagnostics.Debug.WriteLine("Modifies: " + args.Modifies.Values.Sum(list => list.Count).ToString());
System.Diagnostics.Debug.WriteLine("Deletes: " + args.Deletes.Values.Sum(list => list.Count).ToString());

On a new version, I modify a feature located in a versioned layer.

When I save

CompletedType = Operation

args.Modifies.Values.Sum(list => list.Count) = 1

When I reconcile

CompletedType = Reconcile

args.Modifies.Values.Sum(list => list.Count) = 0

When I post

CompletedType = Post

args.Modifies.Values.Sum(list => list.Count) = 0

I would like to know why there is nothing in Modifies when I post.

It means I should save all the changes (Rows) in memory, in a dictionary for example (and in a file for persistence if the user close ArcGIS Pro) and when I detect a Post, i save the old values (the ones saved in the dictionary / file) in an other FeatureClass and let the process continues to save in the default version. Looks like what Brian did by subscribing to the RowChangedEvent of each Layer.

Is it possible to detect when the Post of one element did complete ?

Let's say, I made a huge modification on my version and the Post will take minutes. If I close ArcGIS Pro, ArcGIS Pro crashes or I lost the connection with the database, what will happen, a rollback, only X items will be updated ?

Anonymous User

Hey Brian,

I dont see much wrong with the row event approach. You dont need the row.store in this example as you're changing the row thats being passed in. Assuming all the references are ok it should have worked. The module initialize would only be called when you activated one of your controls in the add-in (assuming autoload is false in the config). How far was it getting?

The EditCompletedEvent fires after the edit has been successfully executed. You can get what changed in the event through the Creates, Modifies and Deletes properties on EditCompletedEventArgs. If you want to make changes to any of these returned features you would have to start another edit operation, as compared to the row events where the edit is in progress, but for just reporting changes its fine.

BrianBulla

OK, so I've done some more research on this. Still not sure if I'm on the right track, but things are working more predictably now. As per some articles and the ArcGIS Pro Reference guide, I am now looking at subscribing to the EditCompletedEvent. This is what I have so far which seems to be working for both attribute edits and geometry changes. (Still need to look into creating new features)

        <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="comment token">//ArcGIS.Desktop.Framework.Dialogs.MessageBox.Show("HI");</SPAN>

            <SPAN class="keyword token">var</SPAN> eceToken <SPAN class="operator token">=</SPAN> EditCompletedEvent<SPAN class="punctuation token">.</SPAN><SPAN class="token function">Subscribe</SPAN><SPAN class="punctuation token">(</SPAN>onEce<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="keyword token">protected</SPAN> Task <SPAN class="token function">onEce</SPAN><SPAN class="punctuation token">(</SPAN>EditCompletedEventArgs args<SPAN class="punctuation token">)</SPAN>
        <SPAN class="punctuation token">{</SPAN>
            IReadOnlyCollection<SPAN class="operator token"><</SPAN>MapMember<SPAN class="operator token">></SPAN> members <SPAN class="operator token">=</SPAN> args<SPAN class="punctuation token">.</SPAN>Members<SPAN class="punctuation token">;</SPAN>

            <SPAN class="keyword token">foreach</SPAN> <SPAN class="punctuation token">(</SPAN>MapMember member <SPAN class="keyword token">in</SPAN> members<SPAN class="punctuation token">)</SPAN>
            <SPAN class="punctuation token">{</SPAN>
                ArcGIS<SPAN class="punctuation token">.</SPAN>Desktop<SPAN class="punctuation token">.</SPAN>Framework<SPAN class="punctuation token">.</SPAN>Dialogs<SPAN class="punctuation token">.</SPAN>MessageBox<SPAN class="punctuation token">.</SPAN><SPAN class="token function">Show</SPAN><SPAN class="punctuation token">(</SPAN>member<SPAN class="punctuation token">.</SPAN>Name<SPAN class="punctuation token">.</SPAN><SPAN class="token function">ToString</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">return</SPAN> Task<SPAN class="punctuation token">.</SPAN><SPAN class="token function">FromResult</SPAN><SPAN class="punctuation token">(</SPAN><SPAN class="number token">0</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>

So I am getting a messagebox with the name of the layer I am editing, which is what I am expecting. But....Is there a way to get at the features that were actually edited? Not just the ones that are selected, but the ones that were actually edited. So even if 10 are selected, but only 1 was edited, I am just interested in the 1 that was edited.

BrianBulla

Hi Sean Jones‌,

Thanks. For what I am trying to do I need to be listening to all edits as they happen; RowCreated, RowChanged and RowDeleted. Not to any one specific layer, but any layer pulled in from SDE. Basically I am trying to create a custom 'Editor Tracking' as we will be turning it off on the DB side to accomodate some requirements of another application that needs to monitor the GIS data.

Currently I am trying to listen for just the RowChanged event from the Toolbar, but no such luck. Here is my code that I have placed in the Toolbars module1.cs. The problem is that it doesn't seem to be catching any of my edits.

<SPAN class="keyword token">using</SPAN> System<SPAN class="punctuation token">;</SPAN>
<SPAN class="keyword token">using</SPAN> System<SPAN class="punctuation token">.</SPAN>Collections<SPAN class="punctuation token">.</SPAN>Generic<SPAN class="punctuation token">;</SPAN>
<SPAN class="keyword token">using</SPAN> System<SPAN class="punctuation token">.</SPAN>Linq<SPAN class="punctuation token">;</SPAN>
<SPAN class="keyword token">using</SPAN> System<SPAN class="punctuation token">.</SPAN>Text<SPAN class="punctuation token">;</SPAN>
<SPAN class="keyword token">using</SPAN> System<SPAN class="punctuation token">.</SPAN>Windows<SPAN class="punctuation token">.</SPAN>Input<SPAN class="punctuation token">;</SPAN>
<SPAN class="keyword token">using</SPAN> ArcGIS<SPAN class="punctuation token">.</SPAN>Desktop<SPAN class="punctuation token">.</SPAN>Framework<SPAN class="punctuation token">;</SPAN>
<SPAN class="keyword token">using</SPAN> ArcGIS<SPAN class="punctuation token">.</SPAN>Desktop<SPAN class="punctuation token">.</SPAN>Framework<SPAN class="punctuation token">.</SPAN>Contracts<SPAN class="punctuation token">;</SPAN>
<SPAN class="keyword token">using</SPAN> System<SPAN class="punctuation token">.</SPAN>Threading<SPAN class="punctuation token">.</SPAN>Tasks<SPAN class="punctuation token">;</SPAN>
<SPAN class="keyword token">using</SPAN> ArcGIS<SPAN class="punctuation token">.</SPAN>Desktop<SPAN class="punctuation token">.</SPAN>Editing<SPAN class="punctuation token">;</SPAN>
<SPAN class="keyword token">using</SPAN> ArcGIS<SPAN class="punctuation token">.</SPAN>Desktop<SPAN class="punctuation token">.</SPAN>Framework<SPAN class="punctuation token">.</SPAN>Threading<SPAN class="punctuation token">.</SPAN>Tasks<SPAN class="punctuation token">;</SPAN>
<SPAN class="keyword token">using</SPAN> ArcGIS<SPAN class="punctuation token">.</SPAN>Desktop<SPAN class="punctuation token">.</SPAN>Mapping<SPAN class="punctuation token">;</SPAN>
<SPAN class="keyword token">using</SPAN> ArcGIS<SPAN class="punctuation token">.</SPAN>Desktop<SPAN class="punctuation token">.</SPAN>Editing<SPAN class="punctuation token">.</SPAN>Events<SPAN class="punctuation token">;</SPAN>

<SPAN class="keyword token">namespace</SPAN> DSM_Toolbar_ArcPro
<SPAN class="punctuation token">{</SPAN>
    <SPAN class="keyword token">internal</SPAN> <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">private</SPAN> <SPAN class="keyword token">static</SPAN> Module1 _this <SPAN class="operator token">=</SPAN> <SPAN class="keyword token">null</SPAN><SPAN class="punctuation token">;</SPAN>    

        <SPAN class="comment token">/// <summary></SPAN>
        <SPAN class="comment token">/// Retrieve the singleton instance to this module here</SPAN>
        <SPAN class="comment token">/// </summary></SPAN>
        <SPAN class="keyword token">public</SPAN> <SPAN class="keyword token">static</SPAN> Module1 Current
        <SPAN class="punctuation token">{</SPAN>
            <SPAN class="keyword token">get</SPAN>
            <SPAN class="punctuation token">{</SPAN>
                <SPAN class="keyword token">return</SPAN> _this <SPAN class="operator token">?</SPAN><SPAN class="operator token">?</SPAN> <SPAN class="punctuation token">(</SPAN>_this <SPAN class="operator token">=</SPAN> <SPAN class="punctuation token">(</SPAN>Module1<SPAN class="punctuation token">)</SPAN>FrameworkApplication<SPAN class="punctuation token">.</SPAN><SPAN class="token function">FindModule</SPAN><SPAN class="punctuation token">(</SPAN><SPAN class="string token">"DSM_Toolbar_ArcPro_Module"</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="token preprocessor">#region Overrides</SPAN>
        <SPAN class="comment token">/// <summary></SPAN>
        <SPAN class="comment token">/// Called by Framework when ArcGIS Pro is closing</SPAN>
        <SPAN class="comment token">/// </summary></SPAN>
        <SPAN class="comment token">/// <returns>False to prevent Pro from closing, otherwise True</returns></SPAN>
        <SPAN class="keyword token">protected</SPAN> <SPAN class="keyword token">override</SPAN> <SPAN class="keyword token">bool</SPAN> <SPAN class="token function">CanUnload</SPAN><SPAN class="punctuation token">(</SPAN><SPAN class="punctuation token">)</SPAN>
        <SPAN class="punctuation token">{</SPAN>
            <SPAN class="comment token">//TODO - add your business logic</SPAN>
            <SPAN class="comment token">//return false to ~cancel~ Application close</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="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="comment token">//Listen for row events on a layer</SPAN>
                <SPAN class="keyword token">var</SPAN> featLayer <SPAN class="operator token">=</SPAN> MapView<SPAN class="punctuation token">.</SPAN>Active<SPAN class="punctuation token">.</SPAN><SPAN class="token function">GetSelectedLayers</SPAN><SPAN class="punctuation token">(</SPAN><SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">.</SPAN><SPAN class="token function">First</SPAN><SPAN class="punctuation token">(</SPAN><SPAN class="punctuation token">)</SPAN> <SPAN class="keyword token">as</SPAN> FeatureLayer<SPAN class="punctuation token">;</SPAN>
                <SPAN class="keyword token">var</SPAN> layerTable <SPAN class="operator token">=</SPAN> featLayer<SPAN class="punctuation token">.</SPAN><SPAN class="token function">GetTable</SPAN><SPAN class="punctuation token">(</SPAN><SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">;</SPAN>

                <SPAN class="comment token">//subscribe to row events</SPAN>
                <SPAN class="comment token">//var rowCreateToken = RowCreatedEvent.Subscribe(OnRowCreated, layerTable);</SPAN>
                <SPAN class="keyword token">var</SPAN> rowChangeToken <SPAN class="operator token">=</SPAN> RowChangedEvent<SPAN class="punctuation token">.</SPAN><SPAN class="token function">Subscribe</SPAN><SPAN class="punctuation token">(</SPAN>OnRowChanged<SPAN class="punctuation token">,</SPAN> layerTable<SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">;</SPAN>
                <SPAN class="comment token">//var rowDeleteToken = RowDeletedEvent.Subscribe(OnRowDeleted, layerTable);</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">base</SPAN><SPAN class="punctuation token">.</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="keyword token">private</SPAN> Guid _currentRowChangedGuid <SPAN class="operator token">=</SPAN> Guid<SPAN class="punctuation token">.</SPAN>Empty<SPAN class="punctuation token">;</SPAN>

        <SPAN class="keyword token">protected</SPAN> <SPAN class="keyword token">void</SPAN> <SPAN class="token function">OnRowChanged</SPAN><SPAN class="punctuation token">(</SPAN>RowChangedEventArgs args<SPAN class="punctuation token">)</SPAN>
        <SPAN class="punctuation token">{</SPAN>
            <SPAN class="keyword token">var</SPAN> row <SPAN class="operator token">=</SPAN> args<SPAN class="punctuation token">.</SPAN>Row<SPAN class="punctuation token">;</SPAN>

            <SPAN class="keyword token">if</SPAN> <SPAN class="punctuation token">(</SPAN>_currentRowChangedGuid <SPAN class="operator token">==</SPAN> args<SPAN class="punctuation token">.</SPAN>Guid<SPAN class="punctuation token">)</SPAN>
                <SPAN class="keyword token">return</SPAN><SPAN class="punctuation token">;</SPAN>

            row<SPAN class="punctuation token">[</SPAN><SPAN class="string token">"COMMENTS"</SPAN><SPAN class="punctuation token">]</SPAN> <SPAN class="operator token">=</SPAN> <SPAN class="string token">"EDITED"</SPAN><SPAN class="punctuation token">;</SPAN>

            _currentRowChangedGuid <SPAN class="operator token">=</SPAN> args<SPAN class="punctuation token">.</SPAN>Guid<SPAN class="punctuation token">;</SPAN>
            row<SPAN class="punctuation token">.</SPAN><SPAN class="token function">Store</SPAN><SPAN class="punctuation token">(</SPAN><SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">;</SPAN>
            _currentRowChangedGuid <SPAN class="operator token">=</SPAN> Guid<SPAN class="punctuation token">.</SPAN>Empty<SPAN class="punctuation token">;</SPAN>
        <SPAN class="punctuation token">}</SPAN>

        <SPAN class="token preprocessor">#endregion Overrides</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>‍</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><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>‍</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>

Anonymous User

Hi Brian,

You can put the code anywhere you have a reference to the layer you are subscribing to.

Normally this might be in an individual control such as a tool or button that needs to listen to the event. For a tool this could be in OnToolActivateAsync or even OnSketchCompleteAsync. Just don’t forget to unsubscribe from the event as required. The subscription token helps with that.

If you’re add-in has many controls you could subscribe/unsubscribe to the event in each one, which helps with control portability at the expense of repeating code, or put them in a common location such as the add-in module, toolbar?, or dock pane if you use one. Be careful with the module approach as that code will run before the project/map opens so you’ll need to listen to those events too.

Think about when the event needs to fire, for example for some of your controls, all your controls and/or any of the standard editor tools.

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