topic Re: Retrieve Table Datasource Type in ArcObjects SDK Questions

Retrieve Table Datasource Type

Corbinde_Bruin — Tue, 23 Apr 2013 16:39:48 GMT

I'm trying to get at the data source type of a table in the Table of contents. I usually do this with Feature Layers which is as simple as featureLayer.DataSourceType. The ITable interface has no such property. I can't seem to get at the Table as a Layer. Is there some casting I'm not doing properly? I see the IDataSourceInformation Interface. Is that something I can use?

Any help is appreciated. If you'd like to see code I'll reply. I just need to know which objects to use.

-Corbin de Bruin

Re: Retrieve Table Datasource Type

KenBuja — Tue, 23 Apr 2013 17:34:53 GMT

You have to use IStandaloneTable to get the tables in the TOC. You can QI to an IDataset to get its source

IMxDocument pMxdoc = m_application.Document;      IMap pMap = pMxdoc.FocusMap;      IStandaloneTableCollection pStandAloneTableCollection = pMap;      IStandaloneTable pStandalonetable = null;      for (int i = 0; i <= pStandAloneTableCollection.StandaloneTableCount - 1; i++)      {          pStandalonetable = pStandAloneTableCollection.StandaloneTable(i);         IDataset pDataset = (IDataset)pStandaloneTable;         Messagebox.show(pStandalonetable.Name & ": " & pDataset.Category);      }

Re: Retrieve Table Datasource Type

Corbinde_Bruin — Tue, 23 Apr 2013 18:09:00 GMT

Thank you. For future reference, how do I find lists of ArcObjects Interfaces that QI nicely?

Re: Retrieve Table Datasource Type

KenBuja — Tue, 23 Apr 2013 18:31:20 GMT

If you look at the IStandaloneTable reference, click on the StandaloneTable CoClass that implements it, which takes you to the list of interfaces it works with.