I have a UI that has a button that exports currently selected vector features to a KML using the LayerToKML Geoprocessor. Whilst it works great on locally stored featureclasses there are certain featureclasses (eg statewide cadastre) on our greater network that are way too big (and our WAN network is very slow!!), and hence take forever to process, even if just a few features are selected for export. While part of my code does a quick check to see how many features exist in the dataset before executing the GP, and gives a warning that it may take until the end of time itself to complete, I want to allow the user to terminate the LayerToKML process should they find them selves onto their second cup of coffee while it is running. Currently if my form is closed whilst this GP is running the whole ArcGIS drops out and all is lost.
Is this possible to do programatically?
This is my GP sub
Private Sub KMZGenerator(pfeaturelayer As IFeatureLayer, LayerName As String, FolderPath As String)
' Initialize the geoprocessor.
Dim GP As Geoprocessor = New Geoprocessor()
'Calculates current date and time and provides as a string
Dim rightNow As DateTime = DateTime.Now
Dim strCurrentDateTimeString As String
strCurrentDateTimeString = rightNow.ToString("ddd_dd_MMM_yyyy_hh_mm_sstt")
'Creates KMZ
Dim LayerToKMLTool As ESRI.ArcGIS.ConversionTools.LayerToKML = New ESRI.ArcGIS.ConversionTools.LayerToKML()
GP.SetEnvironmentValue("workspace", FolderPath)
LayerToKMLTool.layer = pfeaturelayer
LayerToKMLTool.layer_output_scale = 1
LayerToKMLTool.out_kmz_file = LayerName & "_" & strCurrentDateTimeString & ".kmz"
GP.Execute(LayerToKMLTool, Nothing)
Process.Start(LayerToKMLTool.out_kmz_file)
End Sub
Thnx Justin
