It turns out that I should not be using the AfterCellUpdate event but rather the CellChange event instead.

The former is raised when focus is lost the latter is triggered EVERY time it is changed. Since I am wanting to know when the embedded CheckBox is clicked I am fine with that.

To allow for complete control of the application configuration, GO! Sync Mapbook uses reflection to load all of it’s components. This seems to cause a problem in Vista with machines that have Data Execution Prevention (DEP) running. The ActiveX controls that makeup ArcGIS Engine do not load properly.

There is a pretty good article here that shows how to turn it off completely.

I used the following command line to fix it:

bcdedit /set nx AlwaysOff

You need to run the command prompt as Administrator for it to work.

The weird thing is that in the code grid.Rows.Selected.Count == 0.

I have had other battles to fight so have left one alone. Until now.

It turns out that the row is not selected but is the active row.

There are two options, and I recommend doing both:

Set the ActiveRow appearance so that it does not look like it is selected. Instructions.

After setting a row as selected, make it the active row using grid.ActiveRow = row;

When I run the command as I normally use:

xsd /c <Name of the XSD file>

With multiple XSD imports though I get an error saying ‘Error: Error generating classes for schema’ due to it not being able find the externally referenced types.

The answer found here is to add the referenced xsd files to the end of the command like so:

xsd /c <Name of the XSD file> <Referenced file 1> <Referenced file 2> ..

This generates a file properly but it has a name created from the concatenation of all the xsd files involved:

<Name of the XSD file><Referenced file 1><Referenced file 2>.xsd

Simple rename of the file to something less verbose and all works fine.

This has been so annoying for a long time for me and I have finally found the property on the control that stops it from happening.

The property name is HideSelection and by default is set to true. Setting this value to false makes the selected item in that control (implemented by all Infragistics controls I think) keep the item selected when it does not have focus.

Simple thing. Yes. Bugged me for months. Definitely.

Luckily, ESRI have a great EDN post about it which explains everything.

Essentially, you do not populate the IPropertySet with the USER and PASSWORD values but rather set the AUTHENTICATION_MODE to OSA.

The rest of the connection parameters are the same and since we normally use connection files in our applications it means that the connection file just needs to be changed.

GEOPRESS_LOCATION(Home)

One problem though. I am using Filebased Geodatabase and I did not know what the correct way to encode the date is! I thought about it for a little while and then decided to use the trusty Query Builder from within ArcMap. It worked a charm.

It is hard to see but they encode the date by pre-pending ‘date ‘ and encoding the actual date in ‘yyyy-mm-dd’ format.

Must archive this somewhere in my brain where it will not get lost!

• 64-bit Windows
• ArcGIS 9.2
• .NET 2.0

at the same time. When trying to initialize AO using the following code

IAoInitialize init = new AoInitializeClass();

it fails with an error like this:

System.Runtime.InteropServices.COMException
Retrieving the COM class factory for component with CLSID {2237A429-E4AC-40D6-96A5-5B6CCF40D56B} failed due to the following error: 80040154.

We did some digging and, thankfully, someone has already figured it out. It turns out that if you build any .NET code with the ‘Any CPU’ option which is the default then ArcObjects based applications fail. This makes sense as the c++ dlls that are built for AO are 32-bit so the application/assemblies that are consuming them also need to be 32-bit.

Fixing the problem is pretty easy (although if you have a bunch of assemblies like we do tedious!).

First thing to do is select ‘Configuration Manager’ from the  Solution Platforms drop down (the one with ‘Any CPU right now’):

It actually brings up the same configuration window as the Debug/Release configuration!

From the ‘Active solution platforms’ drop-down select ‘New’:

and from the resultant ‘New Solution Platform’ select x86. This is create a new configuration for x86 only. This way when it is run on a 64-bit environment the OS will know that it should be run as a 32-bit application.

Perforce is a great product. It is fast, easy to use and has some neat tools for managing the editing cycle of source code etc. We have multiple sites for development and having a fast synchronization no matter where you are is very important and perforce does a great job of this. The differencing tools are great and check-in, check-out and revert of code is simple and intuitive.

That said, ‘free’ compared to $800 a client is not to be ignored and we decided to try out SVN. Configuration is a simple unless you want to use HTTPS (which everyone does) and then you have to trawl the knowledge base articles and use some magic to get it all to work. One the server is running though getting client online is a breeze.

TortoiseSVN for simple file management and AnkhSVN for Visual Studio integration are a must as far as I am concerned and once again they are free. TortoiseSVN in particular with it’s Windows Explorer integration and differencing tools is the best interface I have seen in a long time for source control. Perforce tries to have a Windows Explorer interface but it does not do well and certainly get’s no-where near TortoiseSVN.

One major factor that attracted me to SVN is the fact that you can do what you like to the source tree when offline. The concept of checking out for edit in a pain in my line of work where I spend the majority of my time on client sites. Having the ability to make code changes during the day and check them in at night is great.

I frequently do not have to do that though as more and more clients are providing WiFi connectivity outwith their firewall to the Internet and since we have the HTTPS version of SVN running I can simple check code in over the Web without even using VPN! We previously used secure tunnel for this and the client always flaked out at the worst times  

One of the benefits of SVN when using Apache is the WebDav. This allows us to include our documents, project plans etc. in the same versioned repository as the source code but with a fit-for-purpose way in Microsoft Office of getting access to and updating the files. This is something that we have not taken full advantage of as yet but will be starting in the very near future.

All in all I would say that SVN is well worth the effort it takes to setup the server and — touch wood — the database has been extremely stable and we have had not problems.

I know that this is a very generic conversation but I will get more in-depth about the branching capabilities (used all the time by us) and how easily it slots into CruiseControl.NET in a different post.