Finds the zero-based index of the specified feature class.
[Visual Basic .NET] Public Function FindClass ( _ ByVal fclass As IFeatureClass _ ) As Integer
[C#] public int FindClass ( IFeatureClass fclass );
Product Availability
Available with ArcGIS Desktop.
Remarks
FindClass returns the FeatureClass index position in the MapTopology. This index can then be used in RemoveClass, which allows removing a specific FeatureClass from the MapTopology using the index of the FeatureClass. This index can also be used in with the Class method that returns a specific FeatureClass based on its index in the MapTopology.
If the feature class does not participate in the MapTopology FindClass returns -1.
[C#]
public void FindClass()
{
UID extUid = new UIDClass();
extUid.Value = "esriEditorExt.TopologyExtension";
//You can get app from ICommand :: OnCreate() hook parameter
ITopologyExtension topologyExt = m_app.FindExtensionByCLSID(extUid) as ITopologyExtension;
IMapTopology mapTopology = topologyExt.MapTopology;
mapTopology.AddClass(fc0);
int featureClassID = mapTopology.FindClass(fc0);
}[Visual Basic .NET]
Public Sub FindClass()
'You can get app from ICommand :: OnCreate() hook parameter
Dim extUid As UID = New UIDClass()
extUid.Value = "esriEditorExt.TopologyExtension"
Dim topologyExt As ITopologyExtension = TryCast(app.FindExtensionByCLSID(extUid), ITopologyExtension)
Dim mapTopology As IMapTopology = topologyExt.MapTopology
mapTopology.AddClass(fc0)
Dim featureClassID As Integer = mapTopology.FindClass(fc0)
End Sub