topic Re: GetAllProperties on Propertyset is slow for line network data in ArcObjects SDK Questions

GetAllProperties on Propertyset is slow for line network data

jayshukla — Wed, 28 Oct 2015 15:36:44 GMT

Hi There,

I am trying to resolve an issue with an ArcObjects extension. This particular portion of logic, gathers metadata for layers in the map. It works fine with regular data layers but with network data (pipeline network layer), it takes much longer than expected. The point layers participating (exp: wells, facilities, pipelines nodes) within network are fine, it's only the pipeline (line) that takes longer. This impacts user workflow when they are trying to switch data frames (one with network data and other with schematics data). Initially i thought that it was related to missing metadata but adding metadata didn't help resolve this issue. I am looking for some suggestions on what may be the workaround for this issue. Our environment is ArcGIS 10.2.2, VB.NET, .NET4 code base. Below is the code.

Appreciate any input.

Thanks

Jay

Dim pMD As IMetadata

Dim pPS As IPropertySet

pDLayer = CType(pLayer, IDataLayer)

pMD = CType(pDLayer.DataSourceName.Open, IMetadata)

If Not pMD Is Nothing Then

Dim vaValues As Object

Dim v As Object

Dim valuesArray As System.Array

pPS = New PropertySet

pPS = pMD.Metadata

Dim tnames As Object

Dim tvalues As Object

Dim vFormat As Object

'Return the metadata elements

pPS.GetAllProperties(tnames, tvalues) - code takes much longer for pipeline data

Re: GetAllProperties on Propertyset is slow for line network data

DuncanHornby — Wed, 28 Oct 2015 16:40:26 GMT

What gets returned in tnames and tvalues? Does it contain what you expected, despite it being slow?

Re: GetAllProperties on Propertyset is slow for line network data

jayshukla — Wed, 28 Oct 2015 16:56:15 GMT

Yes, the code returns what is expected. tnames & tvalues objects contain are all the values in the property set. Below is the code that shows how the code is being used. I looked up ESRI help, link here: ArcObjects Help for .NET developers.

If Not pPS Is Nothing Then

vaValues = pPS.GetProperty("idinfo/keywords/theme/themekey")

'Check for different xml tag for ArcGIS 10 metadata

If IsNothing(vaValues) Then vaValues = pPS.GetProperty("dataIdInfo/themeKeys/keyword")

If Not IsNothing(vaValues) Then

valuesArray = CType(vaValues, System.Array)

For Each v In valuesArray

If InStr(CType(v, String), "HUK") > 0 Then

returnArray.Add(CType(v, String))

End If

Re: GetAllProperties on Propertyset is slow for line network data

jayshukla — Mon, 02 Nov 2015 18:52:30 GMT

Hi, I still don't have a solution for this issue, wondering if there are any other suggestions from fellow members. Thanks in advance.

Jay