ArcObjects is a set of COM-based APIs from ESRI Inc. that are used in several of their products including ArcGIS Desktop, ArcGIS Engine and ArcGIS Server.

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Display Feedback “Stutters” When Moving Features

I have a custom tool for moving features that implements IDisplayFeedback and geometry-specific CoClasses to show the user where they are moving the feature. IMovePolygonFeedback polygonFeedback; ...
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1answer
1k views

ArcMap Addin - add interoperability connection programatically

I'm currently building an add-in for ArcMap - ArcView using the .Net framework. The user of ArcMap and the Add-in should access data published from WFS services. I am aware that it is possible to ...
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238 views

ArcObjects : Out of Server Memory when reconciling a large edit session

One of our users has been periodically experiencing Out of Server Memory errors with ArcSDE 10.0 when trying to reconcile a large edit session. VMware ESX Instance: Windows Server 2008 R2 ...
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5answers
671 views

Measuring draw time of layer in ArcMap?

I'd like to quantitatively measure the display performance of mosaic datasets, image service layers, raster layers, feature layers, etc. in ArcMap 10. How can I measure the draw time of a particular ...
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4k views

No constructor defined?

In my C# Console Application, Visual Studio 2010 highlights new FeatureClassNameClass() in my below line of code and states "ESRI.ArcGIS.Geodatabase.FeatureClassNameClass has No constructors defined" ...
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Getting unique value records from a field

Building a desktop application using C#.net and arcobjects. I'm trying to retrieve records from a shape file using IQueryFilter. Having trouble writing the where clause in my scenario and the ...
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4answers
2k views

Event raised when selected layer changes in TOC

Is there an interface which exposes events for when a TOC selected item changes? I can find snippets showing how to get the currently selected feature from the TOC. However, I have not been able to ...
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3answers
3k views

Python, comtypes and ArcObjects: Error creating AppROT object

I am experimenting with comtypes and ArcObjects under Python 2.6.5 and ArcGIS 10 SP1. I'm using the pure Python method to wrap the ArcObjects OLBs described in this answer, but getting an error in the ...
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7answers
818 views

Where is the server.dat equivalent at 10.1?

Prior to 10.1, I could locate the server.dat file, and programmatically find out the arcgisoutput folder URL location (virtual directory when using IIS) e.g. <Directory> ...
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What is the difference between ActiveView, FocusMap and PageLayout in ArcObjects?

I see that different starting points are used when interacting with ArcMap IMxDocument IMxDocument mxDocument = application.Document as IMxDocument; IActiveView activeView = ...
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Deployment options of ArcMap AddIn?

I made an addin for arcmap and want to deploy it using setup file. By double clicking the setup file anyone can install it in his machine and through installation it will check all dependencies and ...
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2answers
649 views

What does it mean to QI and how is it done?

I'm new to Esri's Arc* interfaces, and trying to figure out how to register an existing table using the ArcObjects API. The following question answers this to some extent: Is there any way to write a ...
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1answer
1k views

Drag a Feature in ESRI, ArcObjects Engine (AxMapControl)

I'm trying to implement moving a point feature in a custom C# ArcGIS Engine application on an AxMapControl. I've already created a custom tool to do some other things. And I can track when the user is ...
5
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1answer
274 views

When is it better to use 64 bit File GDB access?

The beta 2 release File Geodatabase API includes 64 bit support. Esri says arcobjects is still the "preferred" method to interact with the file gdb. However, arcobjects has no 64 bit support. ...
5
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1answer
179 views

How long should I hold onto (cache) references to IWorkspace, ITable, IFeatureClass?

After many months of programming with ArcObjects, I still feel somewhat unsure about two related issues: For some operations, workspaces and datasets must be explicitly opened before they can be ...
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2answers
2k views

How to let the user select a spatial reference using ArcObjects?

I need to build a tool where the user selects a coordinate system for a given CAD file. What is the easiest way to do this with ArcObjects? Obviously, I could populate a list with the hundreds of ...
5
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1answer
645 views

Determining ESRI File Geodatabase release version?

Is there any method in Python, ArcObjects, or the File GDB API for determining the release version (9.3, 10.0, etc.) of a file geodatabase? There is a need to find all of our shared 10.0 version file ...
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2answers
1k views

How to set a map's extent to the envelope in miles

I want to set extent of the map into envelope which sizes are defined by user in miles(kilometers, whatever human readable unit). How to make it? I wrote the following code: static void ...
5
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2answers
492 views

Why esriSpatialRelTouches relation does not work?

I have two feature layers. The first one is just a polygon and the other one consists of a series of polygons which are enclosed by the first one. Thus, some polygons of the second feature layer touch ...
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1answer
273 views

Stubbing IFeature for unittests

I am trying to stub an IFeature with RhinoMocks, but I am having so much trouble doing it. Does anyone have experience with it?
5
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1answer
372 views

GDAL and ArcObjects in The Same Project - A Recipe For Disaster?

I am working on a project where I am attempting to use GDAL and ArcObjects together in the same project. Although the project itself is nothing more than a toolbar in ArcMap, I would like to use some ...
5
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2answers
712 views

Why unable to edit ArcSDE from multiple computers on LAN using custom ArcGIS Engine application?

I cannot edit an ArcSDE database from multiple computers on a LAN network using a custom ArcGIS Engine application, I have tried both versioned and non-versioned feature classes, but they cannot be ...
5
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1answer
1k views

Select By Location in ArcGIS using C#?

I am creating a tool which the user will select point or line features from the map and it will display their names in a list then after clicking on any of these features from the list, it will show ...
5
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1answer
583 views

Turn off field programmatically in ArcMap via VB.Net

I'm creating an addin button in Arcmap via VB.net that when clicked, runs the identify tool. But I want only selected fields to appear in the identify dialog. My idea is to hide the unnecessary fields ...
5
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1answer
3k views

How to make a WPF Window be a well-behaved child window of ArcMap?

I am pretty familiar with Windows Forms in ArcGIS but WPF, which I'm just starting to tinker with, seems to be a different animal. I've created an ArcMap add-in with a button that displays a Window ...
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4answers
644 views

How to get exact ISymbol image size in pixels

I found the next code to convert ISymbol into bitmap image, but how to know the suitable image size? (suppose we have a ITextSymbol) private static Image PointSymbolToImage(ISymbol symbol, Size ...
5
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1answer
722 views

With ArcObjects, distinguish between Save Edits with and without closing the current edit session

Is it possible with ArcObjects to distinguish between the user selecting the Save Edits button and the users selecting the Stop Editing button and then saving edits? The reason for this is that in ...
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517 views

ArcObjects Class Extension - core events not being fired by an editing tool

I think I've just hit a major limitation with how ArcMap (10) deals with class extensions on a Feature Class but I would first like to make sure I'm not missing something or seeing a bug. I have a ...
5
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1answer
1k views

How to persist a polygon to SQL Server database and vice versa?

How do I extract all the points from a Polygon drawn in ArcMAP and then persist that data into a SQLServer database table containing a geometry column and then when I've got the data persisted read ...
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2answers
583 views

IExtension.Startup() not launching when ArcMap starts?

I have an ArcGIS 10 extension that will not launch .Startup() when ArcMap loads. I can get it to hit when I go to Customize->Extensions and un-check/re-check the extension name. Is there a setting ...
5
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2answers
762 views

How to identify polylines with multiple end/starting points?

I'm looking for a way to programmatically identify polyline features which do not represent a 'simple' line from A to B but instead have several starting and/or end points. These are called complex ...
5
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1answer
444 views

How can I pass a WorkspaceName to another thread for opening?

My winforms app gets an IWorkspaceName from an IDatasetName via the GxObject selected in a GxDialog. I want to pass it across to a worker thread for opening. I know how to write multithreaded ...
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1answer
236 views

When a class in an ArcGIS extension should be an ArcGIS class

Visual Studio templates provided by the ArcGIS SDK offer a "ArcGIS Class" which is a simple C# class that has the attributes Guid, ClassInterface, and ProgId before the class declaration. While adding ...
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718 views

Near analysis with mixed feature types in ArcObjects

I am trying to emulate the Near (analysis) ArcGIS tool in ArcObjects. http://help.arcgis.com/en/arcgisdesktop/10.0/help/index.html#//00080000001q000000 I want to use Mixed Feature Types. I have a ...
5
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1answer
128 views

How to detect densely labelled areas?

I'm trying to detect densely labelled areas for a given scale like explained below. so dense labelled area is the area having high rate of overlapping labels. I'd like to detect densely labelled ...
5
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2answers
1k views

How to split a Polyline Geometry at a certain point in ArcObjects?

I have a polyline geometry and wish to split it into two different geometries, based on a given point on that line, in ArcObjects. I have tried to find out how to do this, but to no avail. I found ...
5
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1answer
2k views

ArcObjects: modifying feature field value

I'm developing an ArcMap extension and looking for a way to change feature attributes knowing its feature class and OID (and, presumably, everything else that there is in IFeature). All layers use ...
5
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4answers
380 views

Creating universal ArcGIS 'Current tool' property?

I have a base tool class which handles 90% of my custom logic, but some tools need to set themselves as the current tool. The operations between ArcGIS Engine's IToolbarControl and ArcGIS Desktop's ...
5
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4answers
703 views

Is accessing an mxd from an Msd based SOE safe?

I have a server object extension (SOE) that returns a list of legend items based on symbols that fall within a specified extent. This allows the client to update a legend to reflect on the symbols ...
5
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1answer
177 views

Interface that provides access to property/method that shows whether Layer is visible?

I came across some hack code that I wrote from a few years back that I need rewrite in c#. At the time, I couldn't find property/method that would tell me if a layer was actually visible on the map. ...
5
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2answers
122 views

Polygon points to Polyline

I am trying to create a polyline from the points that I query from a polygon. I have a polygon, and I am getting its edges, casting them to segments, and then use QueryNormal to get the mid point ...
5
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1answer
477 views

Getting feature at point in C#

I want to get the feature at where mouse was clicked in map. So I was wondering how to get features which intersects with that point. Plus I was wondering how can I check what type of object it is ...
5
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2answers
4k views

ArcObjects - find nearest feature to a point - has to be FAST

I've seen lots of discussion on this, especially using IIndexQuery.NearestFeature() on a FeatureIndex instance. Something like this: private IdDistancePair FindNearest(IGeometry g, IFeatureClass fc, ...
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4answers
747 views

Need help to convert 9.3 code for registering .dll to 10.1

This is my code to register my DLL (im using ArcMap 9.3) Private Sub regDLL(ByVal dllName As String) Dim asm As System.Reflection.Assembly = System.Reflection.Assembly.LoadFile(dllName) ...
5
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2answers
416 views

Enabling MapTips in ArcGIS Engine using ArcObjects?

My organization is working on a new version of our software using ArcGIS Engine 10. Previous versions of the software (running on ArcGIS Engine 9.3) displayed MapTips fine as long as they were enabled ...
5
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2answers
289 views

Zoom Commands as Mouse Gestures

Is it possible to use the zoom in, zoom out, and previous extent functions as mouse gestures in ArcMap? For example, say a user held down LShift then left click and dragged diagonally to the lower ...
5
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3answers
896 views

How can I determine the layer name in an edit session?

I have a problem with an editor extension in an Add-In for ArcGIS 10. The editor extension listens on different events occuring on shapefile layers via registering listeners: ...
5
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1answer
564 views

Can you use ArcObjects in an MVC service at v10.1

I'm slighlty confused with the changes at 10.1 and understand this version no longer supports DCOM or remote arcobjects. Can you use ArcObjects in a webservice (in my case a .NET MVC 4 service) that ...
5
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2answers
756 views

Is it possible to modify the ArcObjects IProgressDialog2?

It turns out that the best way to run long tasks in ArcMap is to use the IProgressDialog2. The BackgroundWorker in combination with ArcObjects (STA Threads) is a mess. However, it seems that the only ...
5
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1answer
1k views

Refresh Currently Open ArcMap Attribute Table using ArcObjects

I have written an ArcMap Addin (ArcMap 10.0) that allows a user to perform a join between an in-memory table and a feature class (feature layer) added to the TOC. I want the attribute table of the ...