Problem: The Modify Feature task may create a feature with a null shape


This problem is addressed in ArcGIS 8.1 Service Pack 1. See Related Information section to download this pack. When using the Modify Feature task to modify a polyline or polygon feature, it is possible to delete the shape.


If you delete all vertices but one, you are unable to perform a 'Finish Sketch' because the feature's shape would be invalid. However, if you simply left click anywhere except the last remaining vertex, the sketch is finished and you create a null shape.

Solution or Workaround

You can undo the edit transaction that created the null shape.

Alternatively, you can delete the feature with a null shape using the Attribute Table. A null shape feature has either a length of 0 if it is a polyline, or an area of 0 if it is a polygon.

This has been resolved in Service Pack 1.

Related Information