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I am working with ArcObjects and ESRI for the first time, and I am trying to do what is probably a simple task.

I have a map control in VBA that is associated with a mxd.

I have a table with XY data, and XY data is non-spatial, but the XY is in the same coordinate system as the mxd.

I can get the XY data into a ITable, but I cannot seem to get the ISpatialReference from the map control.

I would like to create a symbolized layer from the non-spatial coordinates, and add it to the map control.

Any samples in VBA of how to do this would be very appreciated.

Thanks again for you time and patience.

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  • Not being a programmer made this a esoteric task to me. I have now learned how to implement the multiple interfaces for the AOs, and this makes life easier ;) I can now do what I want with the control I think. At this point it probably would have been easier to have become a Comp Sci major instead of a Geo major. I am finding no one in my class of geographers really can describe how to program.
    – user2078
    Commented Mar 5, 2011 at 4:36

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To get the spatial Reference form the map, you can use the following code:

dim pmXDoc as IMxDocument
set pmXDoc =ThisDocument

dim pMap as IMap
set pMap=pmXDoc.FocusMap

dim pSR as ISpatialReference
set pSR=pMap.SpatialReference

Here is a sample, which shows how you can make an XY event layer, once you have table in a ITable:

http://resources.esri.com/help/9.3/arcgisengine/ArcObjects/esriGeoDatabase/Create_XYEventSource.htm

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  • If this answer has solved your query, I'll request you to mark it as the accepted answer. This will help others in the future, who stumble upon this question.
    – Devdatta Tengshe
    Commented Mar 7, 2011 at 4:02

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