Retrieve data source from layer within MXD

jonathanNagy1

Hi all:

I'm having difficulty trying to programatically access the data source for layers within an mxd.  Code follows:

DirectoryInfo di = new DirectoryInfo(folder);
            FileInfo[] files = di.GetFiles("*.mxd");
            Dictionary<string, List<String>> referencedFiles = new Dictionary<string,List<string>>();

            foreach (FileInfo fi in files)
            {
                referencedFiles.Add(fi.FullName, new List<string>());

                IMapDocument doc = new MapDocument();
                doc.Open(fi.FullName);
                doc.SetActiveView(doc.PageLayout as IActiveView);
                doc.ActiveView.Activate(0);

                IEnumLayer pEnumLayer = doc.ActiveView.FocusMap.Layers;
                pEnumLayer.Reset();
                
                ILayer pLayer;
                while ((pLayer = pEnumLayer.Next()) != null)
                {
                    IFeatureLayer pFL = pLayer as FeatureLayer; 
                    IFeatureClass pFC = pFL as IFeatureClass; // pFC is coming up null every time for all shapefile layers.
                }
            }

VivekPrasad

Hi all:

I'm having difficulty trying to programatically access the data source for layers within an mxd.  Code follows:

DirectoryInfo di = new DirectoryInfo(folder);
            FileInfo[] files = di.GetFiles("*.mxd");
            Dictionary<string, List<String>> referencedFiles = new Dictionary<string,List<string>>();

            foreach (FileInfo fi in files)
            {
                referencedFiles.Add(fi.FullName, new List<string>());

                IMapDocument doc = new MapDocument();
                doc.Open(fi.FullName);
                doc.SetActiveView(doc.PageLayout as IActiveView);
                doc.ActiveView.Activate(0);

                IEnumLayer pEnumLayer = doc.ActiveView.FocusMap.Layers;
                pEnumLayer.Reset();
                
                ILayer pLayer;
                while ((pLayer = pEnumLayer.Next()) != null)
                {
                    IFeatureLayer pFL = pLayer as FeatureLayer; 
                    IFeatureClass pFC = pFL as IFeatureClass; // pFC is coming up null every time for all shapefile layers.
                }
            }

Hi,

From your code I have observed that you have written the below line of code

"IFeatureClass pFC = pFL as IFeatureClass;"

Actually, it should be

"IFeatureClass pFC = pFL.FeatureClass;"

the rest of your code is correct.

Hope this helps.

Regards,
Vara Prasad M S