I´ve edited the CutTool-example from GitHub to also modify the created/changed features. his is my modified code: var rowCursor = layer . Search ( myGeometry , SpatialRelationship . Crosses ) ; var fc = layer . GetFeatureClass ( ) ; var fkzFieldIndex = fc . GetDefinition ( ) . FindField ( "FSK" ) ; if ( fkzFieldIndex == - 1 ) return Task . FromResult ( false ) ; int index = 0 ; // add the feature IDs into our prepared list while ( rowCursor . MoveNext ( ) ) { var feature = ( Feature ) rowCursor . Current ; var geomTest = feature . GetShape ( ) ; if ( geomTest != null ) { // make sure we have the same projection for geomProjected and geomTest var geomProjected = GeometryEngine . Instance . Project ( geometry , geomTest . SpatialReference ) ; // we are looking for polygons are completely intersected by the cut line if ( GeometryEngine . Instance . Relate ( geomProjected , geomTest , "TT*F*****" ) ) { // add the current feature to the overall list of features to cut oids . Add ( rowCursor . Current . GetObjectID ( ) ) ; cutOperation . Modify ( rowCursor . Current , fkzFieldIndex , "MyNewFKZ" ) ; } } } // add the elements to cut into the edit operation cutOperation . Split ( layer , oids , geometry ) ; //execute the operation var operationResult = cutOperation . Execute ( ) ; return Task . FromResult ( operationResult ) ; So I have a list of oids of features that I want to assign new attributes and that I want to split afterwards. My feature is split, but it does not get the value "MyNewFKZ" assigned to the FKZ-field. Did I miss anything here? I can´t see how may code differs from the example. Just an asside: I also subscribed to the RowCreatedEvent in order to set the FKZ for the newly created feature as well. The handler is appropriately called and the new feature gets the FKZ-field assigned. Uncommenting that handler however has no effect on the modified feature.

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Split polygon and modify its attributes

CarstenSchumann

I´ve edited the CutTool-example from GitHub to also modify the created/changed features.

his is my modified code:

<SPAN class="keyword token">var</SPAN> rowCursor <SPAN class="operator token">=</SPAN> layer<SPAN class="punctuation token">.</SPAN><SPAN class="token function">Search</SPAN><SPAN class="punctuation token">(</SPAN>myGeometry<SPAN class="punctuation token">,</SPAN> SpatialRelationship<SPAN class="punctuation token">.</SPAN>Crosses<SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">;</SPAN>
<SPAN class="keyword token">var</SPAN> fc <SPAN class="operator token">=</SPAN> layer<SPAN class="punctuation token">.</SPAN><SPAN class="token function">GetFeatureClass</SPAN><SPAN class="punctuation token">(</SPAN><SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">;</SPAN>
<SPAN class="keyword token">var</SPAN> fkzFieldIndex <SPAN class="operator token">=</SPAN> fc<SPAN class="punctuation token">.</SPAN><SPAN class="token function">GetDefinition</SPAN><SPAN class="punctuation token">(</SPAN><SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">.</SPAN><SPAN class="token function">FindField</SPAN><SPAN class="punctuation token">(</SPAN><SPAN class="string token">"FSK"</SPAN><SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">;</SPAN>
<SPAN class="keyword token">if</SPAN> <SPAN class="punctuation token">(</SPAN>fkzFieldIndex <SPAN class="operator token">==</SPAN> <SPAN class="operator token">-</SPAN><SPAN class="number token">1</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="keyword token">false</SPAN><SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">;</SPAN>

<SPAN class="keyword token">int</SPAN> index <SPAN class="operator token">=</SPAN> <SPAN class="number token">0</SPAN><SPAN class="punctuation token">;</SPAN>

<SPAN class="comment token">// add the feature IDs into our prepared list</SPAN>
<SPAN class="keyword token">while</SPAN> <SPAN class="punctuation token">(</SPAN>rowCursor<SPAN class="punctuation token">.</SPAN><SPAN class="token function">MoveNext</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">var</SPAN> feature <SPAN class="operator token">=</SPAN> <SPAN class="punctuation token">(</SPAN>Feature<SPAN class="punctuation token">)</SPAN> rowCursor<SPAN class="punctuation token">.</SPAN>Current<SPAN class="punctuation token">;</SPAN>
	<SPAN class="keyword token">var</SPAN> geomTest <SPAN class="operator token">=</SPAN> feature<SPAN class="punctuation token">.</SPAN><SPAN class="token function">GetShape</SPAN><SPAN class="punctuation token">(</SPAN><SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">;</SPAN>
	<SPAN class="keyword token">if</SPAN> <SPAN class="punctuation token">(</SPAN>geomTest <SPAN class="operator token">!=</SPAN> <SPAN class="keyword token">null</SPAN><SPAN class="punctuation token">)</SPAN>
	<SPAN class="punctuation token">{</SPAN>
		<SPAN class="comment token">// make sure we have the same projection for geomProjected and geomTest</SPAN>
		<SPAN class="keyword token">var</SPAN> geomProjected <SPAN class="operator token">=</SPAN> GeometryEngine<SPAN class="punctuation token">.</SPAN>Instance<SPAN class="punctuation token">.</SPAN><SPAN class="token function">Project</SPAN><SPAN class="punctuation token">(</SPAN>geometry<SPAN class="punctuation token">,</SPAN> geomTest<SPAN class="punctuation token">.</SPAN>SpatialReference<SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">;</SPAN>
		<SPAN class="comment token">// we are looking for polygons are completely intersected by the cut line</SPAN>
		<SPAN class="keyword token">if</SPAN> <SPAN class="punctuation token">(</SPAN>GeometryEngine<SPAN class="punctuation token">.</SPAN>Instance<SPAN class="punctuation token">.</SPAN><SPAN class="token function">Relate</SPAN><SPAN class="punctuation token">(</SPAN>geomProjected<SPAN class="punctuation token">,</SPAN> geomTest<SPAN class="punctuation token">,</SPAN> <SPAN class="string token">"TT*F*****"</SPAN><SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">)</SPAN>
		<SPAN class="punctuation token">{</SPAN>
			<SPAN class="comment token">// add the current feature to the overall list of features to cut</SPAN>
			oids<SPAN class="punctuation token">.</SPAN><SPAN class="token function">Add</SPAN><SPAN class="punctuation token">(</SPAN>rowCursor<SPAN class="punctuation token">.</SPAN>Current<SPAN class="punctuation token">.</SPAN><SPAN class="token function">GetObjectID</SPAN><SPAN class="punctuation token">(</SPAN><SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">;</SPAN>
			cutOperation<SPAN class="punctuation token">.</SPAN><SPAN class="token function">Modify</SPAN><SPAN class="punctuation token">(</SPAN>rowCursor<SPAN class="punctuation token">.</SPAN>Current<SPAN class="punctuation token">,</SPAN> fkzFieldIndex<SPAN class="punctuation token">,</SPAN> <SPAN class="string token">"MyNewFKZ"</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="comment token">// add the elements to cut into the edit operation</SPAN>
cutOperation<SPAN class="punctuation token">.</SPAN><SPAN class="token function">Split</SPAN><SPAN class="punctuation token">(</SPAN>layer<SPAN class="punctuation token">,</SPAN> oids<SPAN class="punctuation token">,</SPAN> geometry<SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">;</SPAN>
<SPAN class="comment token">//execute the operation</SPAN>
<SPAN class="keyword token">var</SPAN> operationResult <SPAN class="operator token">=</SPAN> cutOperation<SPAN class="punctuation token">.</SPAN><SPAN class="token function">Execute</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>operationResult<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>

So I have a list of oids of features that I want to assign new attributes and that I want to split afterwards. My feature is split, but it does not get the value "MyNewFKZ" assigned to the FKZ-field. Did I miss anything here? I can´t see how may code differs from the example.

Just an asside: I also subscribed to the RowCreatedEvent in order to set the FKZ for the newly created feature as well. The handler is appropriately called and the new feature gets the FKZ-field assigned. Uncommenting that handler however has no effect on the modified feature.

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Accepted answers

CarstenSchumann

I got it working by not using the Modify-operation, but just registering an OnChange-eventhandler when a row is modified:

RowChangedEvent<SPAN class="punctuation token">.</SPAN><SPAN class="token function">Subscribe</SPAN><SPAN class="punctuation token">(</SPAN><SPAN class="keyword token">this</SPAN><SPAN class="punctuation token">.</SPAN>RowChanged<SPAN class="punctuation token">,</SPAN> fc<SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">;</SPAN>

				
<SPAN class="keyword token">while</SPAN> <SPAN class="punctuation token">(</SPAN>rowCursor<SPAN class="punctuation token">.</SPAN><SPAN class="token function">MoveNext</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">var</SPAN> feature <SPAN class="operator token">=</SPAN> <SPAN class="punctuation token">(</SPAN>Feature<SPAN class="punctuation token">)</SPAN>rowCursor<SPAN class="punctuation token">.</SPAN>Current<SPAN class="punctuation token">;</SPAN>
	<SPAN class="keyword token">var</SPAN> geomTest <SPAN class="operator token">=</SPAN> feature<SPAN class="punctuation token">.</SPAN><SPAN class="token function">GetShape</SPAN><SPAN class="punctuation token">(</SPAN><SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">;</SPAN>
	<SPAN class="keyword token">if</SPAN> <SPAN class="punctuation token">(</SPAN>geomTest <SPAN class="operator token">!=</SPAN> <SPAN class="keyword token">null</SPAN><SPAN class="punctuation token">)</SPAN>
	<SPAN class="punctuation token">{</SPAN>
		<SPAN class="keyword token">var</SPAN> geomProjected <SPAN class="operator token">=</SPAN> GeometryEngine<SPAN class="punctuation token">.</SPAN>Instance<SPAN class="punctuation token">.</SPAN><SPAN class="token function">Project</SPAN><SPAN class="punctuation token">(</SPAN>geometry<SPAN class="punctuation token">,</SPAN> geomTest<SPAN class="punctuation token">.</SPAN>SpatialReference<SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">;</SPAN>
		<SPAN class="comment token">// we are looking for polygons that are completely intersected by the cut line</SPAN>
		<SPAN class="keyword token">if</SPAN> <SPAN class="punctuation token">(</SPAN>GeometryEngine<SPAN class="punctuation token">.</SPAN>Instance<SPAN class="punctuation token">.</SPAN><SPAN class="token function">Relate</SPAN><SPAN class="punctuation token">(</SPAN>geomProjected<SPAN class="punctuation token">,</SPAN> geomTest<SPAN class="punctuation token">,</SPAN> <SPAN class="string token">"TT*F*****"</SPAN><SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">)</SPAN>
		<SPAN class="punctuation token">{</SPAN>
			oids<SPAN class="punctuation token">.</SPAN><SPAN class="token function">Add</SPAN><SPAN class="punctuation token">(</SPAN>rowCursor<SPAN class="punctuation token">.</SPAN>Current<SPAN class="punctuation token">.</SPAN><SPAN class="token function">GetObjectID</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>

cutOperation<SPAN class="punctuation token">.</SPAN><SPAN class="token function">Split</SPAN><SPAN class="punctuation token">(</SPAN>layer<SPAN class="punctuation token">,</SPAN> oids<SPAN class="punctuation token">,</SPAN> geometry<SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">;</SPAN>
<SPAN class="keyword token">var</SPAN> operationResult <SPAN class="operator token">=</SPAN> cutOperation<SPAN class="punctuation token">.</SPAN><SPAN class="token function">Execute</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>

The RowChanged-method is this and is executed upon EditOperation.Execute

<SPAN class="keyword token">private</SPAN> <SPAN class="keyword token">void</SPAN> <SPAN class="token function">RowChanged</SPAN><SPAN class="punctuation token">(</SPAN>RowChangedEventArgs obj<SPAN class="punctuation token">)</SPAN>
<SPAN class="punctuation token">{</SPAN>
	<SPAN class="keyword token">if</SPAN> <SPAN class="punctuation token">(</SPAN>m_CurrentRowChangedOid <SPAN class="operator token">==</SPAN> obj<SPAN class="punctuation token">.</SPAN>Row<SPAN class="punctuation token">.</SPAN><SPAN class="token function">GetObjectID</SPAN><SPAN class="punctuation token">(</SPAN><SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">)</SPAN>
		<SPAN class="keyword token">return</SPAN><SPAN class="punctuation token">;</SPAN>

	<SPAN class="keyword token">this</SPAN><SPAN class="punctuation token">.</SPAN>m_CurrentRowChangedOid <SPAN class="operator token">=</SPAN> obj<SPAN class="punctuation token">.</SPAN>Row<SPAN class="punctuation token">.</SPAN><SPAN class="token function">GetObjectID</SPAN><SPAN class="punctuation token">(</SPAN><SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">;</SPAN>
	obj<SPAN class="punctuation token">.</SPAN>Row<SPAN class="punctuation token">[</SPAN>obj<SPAN class="punctuation token">.</SPAN>Row<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="token function">GetDefinition</SPAN><SPAN class="punctuation token">(</SPAN><SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">.</SPAN><SPAN class="token function">FindField</SPAN><SPAN class="punctuation token">(</SPAN><SPAN class="string token">"FSK"</SPAN><SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">]</SPAN> <SPAN class="operator token">=</SPAN> <SPAN class="string token">"MyNewFsk"</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>

However we have to unsubscribe from the event. Otherwise the handler is registered on every call to our tool.

All comments

NarelleChedzey

Carsten,

Thanks for posting this question. We have found that there's a bug with using the EditOperation.Modify(Row ...) methods followed by other EditOperation methods. We will be fixing this in the next version of the software.

In the meantime, what you have determined is an acceptable workaround. You could also implement the following without needing to subscribe to the RowChanged event. There is no problem with the EditOperation.Modify(layer, oid, ... ) methods.

while (rowCursor.MoveNext())
{
var feature = (Feature)rowCursor.Current;
var geomTest = feature.GetShape();
if (geomTest != null)
{
var geomProjected = GeometryEngine.Instance.Project(geometry, geomTest.SpatialReference);
// we are looking for polygons that are completely intersected by the cut line
if (GeometryEngine.Instance.Relate(geomProjected, geomTest, "TT*F*****"))
{
oids.Add(rowCursor.Current.GetObjectID());
}
}
}
var atts = new Dictionary<string, object>();
atts.Add("FSK", "MyNewFKZ");
foreach (var oid in oids)
cutOperation.Modify(layer, oid, atts);
cutOperation.Split(layer, oids, geometry);

var operationResult = cutOperation.Execute();

Thanks

Narelle

CharlesMacleod

I suspect this is the root of your original problem:

<SPAN class="" style="color: #0077aa; border: 0px; font-weight: inherit;">var</SPAN> rowCursor <SPAN class="" style="color: #a67f59; background: rgba(255, 255, 255, 0.5); border: 0px; font-weight: inherit;">=</SPAN> layer<SPAN class="" style="color: #999999; border: 0px; font-weight: inherit;">.</SPAN><SPAN class="" style="color: #d74444; border: 0px; font-weight: inherit;">Search</SPAN><SPAN class="" style="color: #999999; border: 0px; font-weight: inherit;">(</SPAN>myGeometry<SPAN class="" style="color: #999999; border: 0px; font-weight: inherit;">,</SPAN> SpatialRelationship<SPAN class="" style="color: #999999; border: 0px; font-weight: inherit;">.</SPAN>Crosses<SPAN class="" style="color: #999999; border: 0px; font-weight: inherit;">)</SPAN><SPAN class="" style="color: #999999; border: 0px; font-weight: inherit;">;</SPAN>

You are using a recycling cursor. Change to a non-recycling cursor (access this off the feature class). With a recycling cursor, repetitive calls to op.Modify with rowcursor.Current will get overwritten by the following "current" feature. (note: the last feature in your selection was probably getting successfully modified).

//This is a problem with a recycling cursor when in a loop.

cutOperation<SPAN class="" style="color: #999999; border: 0px; font-weight: inherit;">.</SPAN><SPAN class="" style="color: #d74444; border: 0px; font-weight: inherit;">Modify</SPAN><SPAN class="" style="color: #999999; border: 0px; font-weight: inherit;">(</SPAN>rowCursor<SPAN class="" style="color: #999999; border: 0px; font-weight: inherit;">.</SPAN>Current<SPAN class="" style="color: #999999; border: 0px; font-weight: inherit;">,</SPAN> fkzFieldIndex<SPAN class="" style="color: #999999; border: 0px; font-weight: inherit;">,</SPAN> <SPAN class="" style="color: #669900; border: 0px; font-weight: inherit;">"MyNewFKZ"</SPAN><SPAN class="" style="color: #999999; border: 0px; font-weight: inherit;">)</SPAN><SPAN class="" style="color: #999999; border: 0px; font-weight: inherit;">;</SPAN>

CarstenSchumann

I got it working by not using the Modify-operation, but just registering an OnChange-eventhandler when a row is modified:

RowChangedEvent<SPAN class="punctuation token">.</SPAN><SPAN class="token function">Subscribe</SPAN><SPAN class="punctuation token">(</SPAN><SPAN class="keyword token">this</SPAN><SPAN class="punctuation token">.</SPAN>RowChanged<SPAN class="punctuation token">,</SPAN> fc<SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">;</SPAN>

				
<SPAN class="keyword token">while</SPAN> <SPAN class="punctuation token">(</SPAN>rowCursor<SPAN class="punctuation token">.</SPAN><SPAN class="token function">MoveNext</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">var</SPAN> feature <SPAN class="operator token">=</SPAN> <SPAN class="punctuation token">(</SPAN>Feature<SPAN class="punctuation token">)</SPAN>rowCursor<SPAN class="punctuation token">.</SPAN>Current<SPAN class="punctuation token">;</SPAN>
	<SPAN class="keyword token">var</SPAN> geomTest <SPAN class="operator token">=</SPAN> feature<SPAN class="punctuation token">.</SPAN><SPAN class="token function">GetShape</SPAN><SPAN class="punctuation token">(</SPAN><SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">;</SPAN>
	<SPAN class="keyword token">if</SPAN> <SPAN class="punctuation token">(</SPAN>geomTest <SPAN class="operator token">!=</SPAN> <SPAN class="keyword token">null</SPAN><SPAN class="punctuation token">)</SPAN>
	<SPAN class="punctuation token">{</SPAN>
		<SPAN class="keyword token">var</SPAN> geomProjected <SPAN class="operator token">=</SPAN> GeometryEngine<SPAN class="punctuation token">.</SPAN>Instance<SPAN class="punctuation token">.</SPAN><SPAN class="token function">Project</SPAN><SPAN class="punctuation token">(</SPAN>geometry<SPAN class="punctuation token">,</SPAN> geomTest<SPAN class="punctuation token">.</SPAN>SpatialReference<SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">;</SPAN>
		<SPAN class="comment token">// we are looking for polygons that are completely intersected by the cut line</SPAN>
		<SPAN class="keyword token">if</SPAN> <SPAN class="punctuation token">(</SPAN>GeometryEngine<SPAN class="punctuation token">.</SPAN>Instance<SPAN class="punctuation token">.</SPAN><SPAN class="token function">Relate</SPAN><SPAN class="punctuation token">(</SPAN>geomProjected<SPAN class="punctuation token">,</SPAN> geomTest<SPAN class="punctuation token">,</SPAN> <SPAN class="string token">"TT*F*****"</SPAN><SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">)</SPAN>
		<SPAN class="punctuation token">{</SPAN>
			oids<SPAN class="punctuation token">.</SPAN><SPAN class="token function">Add</SPAN><SPAN class="punctuation token">(</SPAN>rowCursor<SPAN class="punctuation token">.</SPAN>Current<SPAN class="punctuation token">.</SPAN><SPAN class="token function">GetObjectID</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>

cutOperation<SPAN class="punctuation token">.</SPAN><SPAN class="token function">Split</SPAN><SPAN class="punctuation token">(</SPAN>layer<SPAN class="punctuation token">,</SPAN> oids<SPAN class="punctuation token">,</SPAN> geometry<SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">;</SPAN>
<SPAN class="keyword token">var</SPAN> operationResult <SPAN class="operator token">=</SPAN> cutOperation<SPAN class="punctuation token">.</SPAN><SPAN class="token function">Execute</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>

The RowChanged-method is this and is executed upon EditOperation.Execute

<SPAN class="keyword token">private</SPAN> <SPAN class="keyword token">void</SPAN> <SPAN class="token function">RowChanged</SPAN><SPAN class="punctuation token">(</SPAN>RowChangedEventArgs obj<SPAN class="punctuation token">)</SPAN>
<SPAN class="punctuation token">{</SPAN>
	<SPAN class="keyword token">if</SPAN> <SPAN class="punctuation token">(</SPAN>m_CurrentRowChangedOid <SPAN class="operator token">==</SPAN> obj<SPAN class="punctuation token">.</SPAN>Row<SPAN class="punctuation token">.</SPAN><SPAN class="token function">GetObjectID</SPAN><SPAN class="punctuation token">(</SPAN><SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">)</SPAN>
		<SPAN class="keyword token">return</SPAN><SPAN class="punctuation token">;</SPAN>

	<SPAN class="keyword token">this</SPAN><SPAN class="punctuation token">.</SPAN>m_CurrentRowChangedOid <SPAN class="operator token">=</SPAN> obj<SPAN class="punctuation token">.</SPAN>Row<SPAN class="punctuation token">.</SPAN><SPAN class="token function">GetObjectID</SPAN><SPAN class="punctuation token">(</SPAN><SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">;</SPAN>
	obj<SPAN class="punctuation token">.</SPAN>Row<SPAN class="punctuation token">[</SPAN>obj<SPAN class="punctuation token">.</SPAN>Row<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="token function">GetDefinition</SPAN><SPAN class="punctuation token">(</SPAN><SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">.</SPAN><SPAN class="token function">FindField</SPAN><SPAN class="punctuation token">(</SPAN><SPAN class="string token">"FSK"</SPAN><SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">]</SPAN> <SPAN class="operator token">=</SPAN> <SPAN class="string token">"MyNewFsk"</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>

However we have to unsubscribe from the event. Otherwise the handler is registered on every call to our tool.

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