topic Re: Load Layer from File Geodatabase (.gdb) in ArcGIS JavaScript Maps SDK Questions

Load Layer from File Geodatabase (.gdb)

BryanDeverot — Mon, 23 Aug 2010 12:37:06 GMT

Below is a post I found on the old ESRI forum. When I add a raster from my file geodatabase, I want it to programatically load the layer file as well. Where do I insert the code below to do that?

http://forums.esri.com/Thread.asp?c=93&f=992&t=277233

I use a File Geodatabase with the name:
database.gdb
I have some layers in this gdb, which I want to load to ArcMap programmatically.(the database.gdb is a folder with files inside with extensions .freelist, .gdbindexes, .gdbtable, .gdbtablx and .spx)
Wherever I look in the forum I get code for an mdb Geodatabase.
How can I load a layer from a File Geodatabase?

The following code didn't work. I get an automation error at the line pWorkspaceFactory.OpenFromFile("C:\ZZZ\database.gdb", 0)
It only works (I think) with mdb files

Thank you
Dim pWorkspaceFactory As IWorkspaceFactory
Set pWorkspaceFactory = New FileGDBWorkspaceFactory

'Open the Access Workspace
Dim pWorkspace As IFeatureWorkspace
Set pWorkspace = pWorkspaceFactory.OpenFromFile("C:\ZZZ\database.gdb", 0)

'Open the featureclass
Dim pFeatureClass As IFeatureClass
Set pFeatureClass = pWorkspace.OpenFeatureClass("LayerName")

'Create a new Feature Layer
Dim pFeatureLayer As IFeatureLayer
Set pFeatureLayer = New FeatureLayer

'Set the feature class to the geodatabase featureclass
Set pFeatureLayer.FeatureClass = pFeatureClass
pFeatureLayer.Name = pFeatureClass.AliasName

'Add the new layer to ArcMap
Dim pDoc As IMxDocument
Set pDoc = ThisDocument
Dim pMap As IMap
Set pMap = pDoc.FocusMap
pMap.AddLayer pFeatureLayer

'Refresh the view and table of contents
pDoc.UpdateContents
pDoc.ActiveView.Refresh

Unable to load gdbtable / gdbindexes

johngibson1 — Mon, 06 Jun 2011 21:50:08 GMT

I am running the trial version of ArcGIS Desktop 10. I received a folder with .gdbtable , .gdbindexes, .freelist files. I've tried connecting the folder, importing the dataset, etc.. and I am failing bigtime. I've changed the extension on the folder to .gdb and tried importing that way. My goal is to convert the files to .dwg or .dxf for autocad, but I can't get to viewing. Any help is appreciated.

John

Re: Load Layer from File Geodatabase (.gdb)

StephenLead — Tue, 07 Jun 2011 03:12:56 GMT

Hi John,

It sounds like the geodatabase you received may be corrupt - try requesting it again.

Tell the dataset creator to zip the entire geodatabase directory, from one level above the the files you're seeing.

Eg, if the file is called C:\data\FileName.gdb, they should open C:\data in Windows, right-click on FileName.gdb, and zip this. This will create a zip file containing FileName.gdb, which will contain the constituent files.

You should be able to preview the geodatabase in ArcCatalog, or add it to ArcMap using the Add Data option.

Steve

Re: Load Layer from File Geodatabase (.gdb)

WilliamSinclair — Thu, 14 Feb 2013 17:38:44 GMT

Just learned that while you have downloaded <FILENAME>.gdb.zip, you must create new folder> "<FILENAME>.gdb" >extract zip file to new folder.... THEN ArcMap will recognize the data.

If you simply extract your data to a file without creating the destination folder with a .gdb extension, it will not be recognized.

Cheers!

Re: Load Layer from File Geodatabase (.gdb)

SweetySingh — Fri, 04 Apr 2014 06:53:47 GMT

Hi,

We are making a iOS application for offline viewing of map.
We have .tpk file to show offline map and .gdb file for database to show related information of map layers.
But we are unable to read the .gdb file.

Should the extension be something different? How should we add this file in our application?
And how can we read this file to get the data of layers.

Please help for this.

Thanks,
Sweety Singh