Questions tagged [vb.net]

An object-oriented programming language from Microsoft. It is the .NET version of the Visual Basic (VB) programming language.

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18 votes
7 answers
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How can I find the farthest point from a set of existing points?

I have a set of points as a shapefile and I want to find (the coordinates) of a new point which will have the longest possible distance from each of the existing points. Is that possible? If yes, is ...
Demetris's user avatar
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17 votes
2 answers
9k views

Create weighted Thiessen polygons?

I have a point shapefile and I create Thiessen (Voronoi) polygons programmatically using this scripting syntax: CreateThiessenPolygons_analysis (in_features, out_feature_class, fields_to_copy) ...
Demetris's user avatar
  • 1,039
13 votes
3 answers
6k views

Connecting line features and determining the length of the longest line

I have a line feature (see image) representing a river that I created using the Stream_to_Feature tool. The attribute table contains several records representing different lines - the problem is the ...
Radar's user avatar
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10 votes
4 answers
887 views

Does SHAPE_Length take into account elevation values?

Does the Shape_Length attribute take into account the elevation? For instance, if I have 3 points: A, B, and C A.X = 10 A.Y = 10 A.Z = 10 B.X = 10 B.Y = 10 B.Z = 50 C.X = 0 C.Y = 0 C.Z = 10 Then I ...
Chris's user avatar
  • 474
7 votes
4 answers
1k views

Deriving separate polylines from coded points using ArcObjects (Figure inside)

I have a single point featureclass that represents the left and right sides of a landform (the points are coded as either 'right' or 'left'). Visually I can pick out and digitize two lines along these ...
Radar's user avatar
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7 votes
3 answers
4k views

Selecting the MAX value from a feature using ArcObjects?

I have a feature (point) with a field called 'Sequence'. The values in this column range from 1 to n. I can use IQueryFilter to get the first value, 1. Dim pQry As IQueryFilter = ...
Radar's user avatar
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7 votes
1 answer
1k 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 ...
spearman's user avatar
7 votes
2 answers
6k views

Finding path where add-ins are installed for ArcGIS Desktop?

I see that my add-ins are installed to C:\Users\Me\AppData\Local\ESRI\Desktop10.0\AssemblyCache{6C90269B-D233-4122-3747-C2AE1131E22C} Is it possible to find that file path from within the Add-in ...
user4979's user avatar
6 votes
4 answers
734 views

Migrate in a new programming GIS language

The last five years I have been working with VBA and ArcObjects for developing a specific application within ArcGIS. That project that began around 2008-2009 carried out with VBA and ArcObjects which ...
Demetris's user avatar
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6 votes
3 answers
2k views

Numbering polygons according to their spatial relationships?

I have, for example, this layer in postgresql (polygons): table : poly (objectid: integer, num: integer, shape: geometry) I want to enumerate the polygons from left to right and top to bottom like ...
Mounaim's user avatar
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6 votes
1 answer
4k views

Unable to create .esriAddin; missing ESRI ArcGIS Add-in SDK components(s)?

What am I missing? I upgraded to ArcGIS 10.3 succesfully recompiled all other 20 or so addins after encountering a similar issue and renaming "ESRI.ArcGIS.AddIns.11.targets" to "ESRI.ArcGIS.AddIns....
Jakub Sisak GeoGraphics's user avatar
6 votes
1 answer
1k views

Creating button to clear all layers from data frame using ArcObjects and VB.NET? [closed]

I'm trying to create a button using VB.NET and ArcGIS 10 to clear the layers of my data frame. I know how to add layers, but how do I delete/clear them?
TitoGIS's user avatar
  • 71
6 votes
1 answer
697 views

Spatial Query works while stepping through debugger but not otherwise

ORIGINAL POST: I'm not actually sure whether this is a VB.net problem or an ESRI problem...but given the number of really odd ESRI quirks I've encountered, my money's on the latter... I have a piece ...
BeckyZ's user avatar
  • 438
6 votes
1 answer
560 views

Creating a VB.net Dataset in Visual Studio 2010 from an SDE Geodatabase

I am building an ArcMap Addin that contains several Windows Forms with controls that need to be bound to a database. I am trying to decide whether or not to use a native SQL Server Database or an SDE ...
Brian's user avatar
  • 4,209
5 votes
2 answers
14k views

How do I change the targeted .NET 4.0 Framework to version 3.5 in an existing VS 2010 EXPRESS project?

I am upgrading from ArcGIS desktop 10.0 to 10.1 and I have a bunch of addins developed in VS 2008 Express using ArcObjects 10.0. I would like to upgrade everything to 10.1 using VS 2010 Express. I ...
Jakub Sisak GeoGraphics's user avatar
5 votes
2 answers
719 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 ...
Demetris's user avatar
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5 votes
2 answers
1k views

Visual Basic editor command icon is always disabled

I recently installed ArcGIS 9.3 in a PC with Windows 7.0. I opened an existing mxd file within which I developed some toolbars for a project. Each icon of a toolbar has behind it a VBA and ArcObjects ...
Demetris's user avatar
  • 1,039
5 votes
1 answer
2k 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 ...
Brian's user avatar
  • 4,209
5 votes
3 answers
5k views

Remove Shapefile lock

I have an ArcObject Dissolve procedure that creates a shp in a directory. This dissolved layer is a temp layer and is not added into ArcMap. I would like to delete it when the user clicks a button ...
artwork21's user avatar
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4 votes
4 answers
2k views

Exploring ArcObjects through C# or VB from Python background

While I understand that this may be off topic to an extent, I am in a bit of a bind and could use some help directing my thought process and research. I have little programming background aside ...
Nathanus's user avatar
  • 4,308
4 votes
4 answers
6k views

Sum the values of a single raster and output the value as a number?

I have a floating point raster and have applied a conditional to it in order to only extract the positive values, so there are 'no data' "holes" in the raster. I simply need to sum the values from ...
Radar's user avatar
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4 votes
2 answers
1k views

ArcObjects VB.Net - Editing in Geodatabase

I have a script in VB.Net for grabbing values from one feature and assigning them to another. It works fine on shapefiles, but upon importing the same shapefiles into a file geodatabase, I get an ...
Duncan Rager's user avatar
4 votes
1 answer
7k views

Getting feature class from File Geodatabase in ArcObjects using VB.NET?

How do you open up a File GDB and read out a simple feature class? The snippet for retreiving a shapefile from a regular folder on disk works, and I suppose I can use the same code but with a ...
bvh9000's user avatar
  • 101
4 votes
2 answers
1k views

Is IPolygon2.QueryExteriorRingsEx Method not working in ArcGIS version 10.1 SP1?

I am updating my addins from 10.0 to 10.1 and my code is crashing on the IPolygon2.QueryExteriorRingsEx Method. I understand there is something strange going on with this method because Developer ...
Jakub Sisak GeoGraphics's user avatar
4 votes
3 answers
2k views

Problem creating a point IFeatureClass

I'm trying to create a point IFeatureClass, but my code doesn't work. Public Function CreatePointFeatureClass(ByVal featureClassName As String, _ ByVal ...
hvaezi's user avatar
  • 289
4 votes
1 answer
1k views

Getting feature class names within dataset with vb.net and ArcObjects?

I am totally new to arcobjects. I want to get the feature class names withın a dataset and add them to a listbox. I was able to get the dataset names but i do not know how to iterate through the ...
webrider43's user avatar
4 votes
3 answers
2k views

ArcObjects Background Process (Thread) Progress Bar?

Using a toolbar, written in ArcObjects, it is possible to push processing to a separate thread so that the GUI does not lock. Is it possible to have the thread update a progress bar in the same ...
Jay Laura's user avatar
  • 4,463
4 votes
1 answer
429 views

How to use IDatabaseCompact.Compact() on an used IWorkspace, without permission denied

I am writting an ArcMap-AddIn with vb.net. I get an error when trying to compact my IWorkspace(mdb), the error is: COMException You tried to open a database, which was already opened by the ...
Munchies's user avatar
  • 143
4 votes
2 answers
1k views

DLL As Embedded Resource ArcMap Add-In? VB.NET

I tried using StackOverflow, but I don't think anyone can answer my question in context(ArcMap Addins). I am currently developing an add-in that needs to load a custom control DLL as a dependency. ...
Logan B. Lehman's user avatar
4 votes
1 answer
4k views

Filtering a raster by pixel cluster size in ArcGIS?

I have a raster image representing islands in a river (see image) created using the following process: 1) Clip a water surface DEM and watershed DEM by a bounding polygon (waters' edge). 2) Subtract ...
Radar's user avatar
  • 10.7k
4 votes
1 answer
199 views

ArcObjects add multiple inputs to GeoProcessor

I am trying to send multiples input features to the Geoprocessing.IGeoProcessor (to do an Intersect). I am doing this because I can't add the layer path since one of them is from ArcSDE. The example ...
Math's user avatar
  • 405
4 votes
1 answer
478 views

Listening for edit events through dockable window using ArcObjects?

I am creating a dockable window that allows users to select features of a particular featureclass, iterate through records in the featureclass, populate textboxes with certain attributes, and edit ...
Barbarossa's user avatar
  • 5,797
3 votes
2 answers
837 views

Enable Add-In Button if One Feature is Selected from Specific Layer

I am trying to enable an add-in button on my toolbar if only one feature is selected from a specifc Layer. For example, when ArMap loads, the button should be disabled. If the user selects one feature ...
user5373's user avatar
  • 209
3 votes
2 answers
3k views

ArcObjects: Getting the properties of a layer that has lost its data source (VB.NET)

When you save an ArcGIS map document (MXD) and then change the data source of a layer in the MXD, you can no longer see the layer in the MXD and you must redefine its data source. But suppose you ...
hvaezi's user avatar
  • 289
3 votes
3 answers
1k views

Getting Layername from selected feature using ArcObjects?

I have a IEnumFeature list of selected Features obtained through IApplication.Document.ActiveView.Selection. From this selection I want to delete some feature, more specifically the features from one ...
Adarkas2302's user avatar
3 votes
2 answers
569 views

Finding layer based on source name using ArcObjects?

I am relatively new at creating tools with ArcObjects and I am having trouble finding a layer based on the layer's source name by looping through all layers. I've seen here that it is possible, but I ...
Barbarossa's user avatar
  • 5,797
3 votes
2 answers
825 views

vb.net arcobjects determine whether arcmap is in editing session

I have a vb.net arcmap addin which provide a function to validate geodb topology. But there is a problem, when I am not in editing session and use the function, arcmap will crash. In this case I ...
ppLily's user avatar
  • 933
3 votes
3 answers
1k views

Using ArcGIS Geoprocessing and 32/64 bit architecture with ArcObjects?

I am coding a VB.net console application using ArcObjects to call ArcGIS 10.1 geoprocessing tools. I have several geoprocessing calls that actually work, but that pop up an irritating message box when ...
narmaps's user avatar
  • 665
3 votes
1 answer
2k views

How do you set a polygon layers transparency in DotSpatial

How do you set a polygon layers transparency in DotSpatial? I'm using vb.net in visual studio express 2013 and using a Dotspatial nugets package which has given me DotSpatial version 1.7. Please see ...
MBT86's user avatar
  • 138
3 votes
1 answer
1k views

Update attributes during edit session using ArcObjects

I have made an attempt to create an ArcObjects addin to help with some workflows here in the office. I apologize in advance if I have something fundamentally wrong with the code. This is my first ...
Barbarossa's user avatar
  • 5,797
3 votes
2 answers
1k views

ArcObjects Geoprocessing Failures

I am working on launching the GenerateNearTable using the ArcObjects Assembly method. I have the advanced license (10.1), so the tool is available. The code to launch geoprocessing is: Private ...
Jay Laura's user avatar
  • 4,463
3 votes
1 answer
374 views

Field cannot be deleted because it is being used as relationship key?

I want to delete some fields of featureclasses, but when I run the code FeatureClass.DeleteField(Field) it works well for some featureclasses but after some time it gives an error such as: The ...
Manish's user avatar
  • 31
3 votes
2 answers
1k views

How to loop through an array of point features?

I have a set of point features and I wish to find the points that have common coordinates. Now I changed the code as shwon bewlo by using the IPoint and the compare method through a function. I have 2 ...
Demetris's user avatar
  • 1,039
3 votes
1 answer
2k views

Overlaying an image on a point, on a map in sharpmap?

I can add points to a map but I want to show an image (like a baloon or location sign) instead of the default red circle for the points. how can I do that with Sharpmap? my code to draw points is: ...
Ehsan Zand's user avatar
3 votes
2 answers
2k views

Why am I unable to enable my addin extension?

I am working on an ArcObjects addin for Desktop 10.1. I am using the SelectionExtension as a template for my addin. I was unable to listen for events through a dockable window, so at others' ...
Barbarossa's user avatar
  • 5,797
3 votes
1 answer
269 views

Is extrusion of a line (which is curved) into a plane at a certain angle possible in ArcGIS?

I have a polyline shape file which is a fault trace on earth's surface. I want to extrude this into a 3-D plane at a certain angle (which is dip angle of the fault). However, the extruded plane ...
AydarAsks's user avatar
  • 111
3 votes
1 answer
939 views

Counting distinct values in a field of a table stored in pgdb

I need to calculate total count of distinct values of a field . That field contains many duplicate values also. The table which contains that field is stored in pgdb. I want things done in vb .net. ...
Navish's user avatar
  • 109
3 votes
1 answer
443 views

Not getting all decimal places when converting numbers to string (ArcObjects with VB .Net) [closed]

I would like to build some queries in my addin from layers in my map. I am having problems with double numeric types. esriFieldTypeDouble has 14 - 18 decimal places or more depending on the database ...
Jakub Sisak GeoGraphics's user avatar
3 votes
1 answer
431 views

Row.Value returns rounded SHAPE.area and SHAPE.len values?

I have created a VB.Net Add-In, and am using IRow to get the value of fields in tables in ArcMap to use in a query. But I am encountering a problem when getting the values of the SHAPE.area and ...
Dan Jurgella's user avatar
  • 2,368
3 votes
1 answer
1k views

Executing Dissolve method in ArcGIS Engine?

I'm always having a problem in GP.execute() when trying to execute this method. Here is my code: Friend Function DissolveFeatures(ByVal pInFLayer As ESRI.ArcGIS.Carto.IFeatureLayer, ByVal ...
Mounaim's user avatar
  • 635

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