Using an ActivityDesignerTheme is a quick way to customize the appearance of an activity in the workflow designer. But there is a gotcha Because once you applied the theme and have a workflow with the custom activity open in the designer no matter what you do changes will not be applied. I am not sure...
When working with state machine workflow's the SetStateActivity is one of the more important activities to use. The main reason is that is the one used to transition from one state to another. You can actually transition state in a different way as well using the StateMachineWorkflowInstance.SetState...
I just heard about a pretty nasty "bug" with ClickOnce. Well it isn't an actual bug but still a nasty problem to run into. The problem is actually with the certificate used to sign a ClickOnce installer. When you create a new ClickOnce installer Visual Studio will automatically generate...
One of the nice new features in Visual Basic 9 are lambda expressions. They where actually added as one of the underlying pieces for LINQ. But besides enabling LINQ you can use them in all sorts of places. One of the places they really help me is in places where I previously needed to declare a delegate...
Last week was pretty interesting and busy First we had the DevDays on Thursday and Friday. I was there to answer questions from the audience. I didn't get too many questions so I could take my time and actually spend around 90 minutes answering questions from one and around 1 hour with another. Add...
As I mentioned in my previous blog post adding a custom ActivityValidator class to an activity validates it at runtime as well as at design time. So when is this runtime validation done and what happens when it fails? The when part is when the WorkflowInstance object is first created using one of the...
The current version of SQL Server Compact has no support for 64 bits computing. While this may seem a problem if you want to deploy you application on a 64 bits version of Windows it really isn't most of the time. In fact if you change your assembly from the default AnyCPU to x86 compatible it will...
VS2008 SP1 Beta is quite a package. By default the installation downloads the packages as needed and when needed. Now that is just fine if you only need to install a single machine. But when you need to install multiple, possibly virtual, machines like I have to it just wastes a lot of bandwidth and...
Posted to
The Problem Solver
(Weblog)
by
Maurice
on
05-16-2008
Filed under: .NET, LINQ, NetFx3, Workflow, VSTO, WCF, VB, DevCenter, ClickOnce, WPF, SqlCe
The Dutch Microsoft office has posted the first of the Community DevCast we recorded. The host is Alex Thissen who actually does most of the work as he also edits the screencasts so don't forget to thank him next week when you run into him at the Dutch DevDays . I am happy to say that amongst the...
By default every custom workflow activity shows the same icon. And using an icon that help understand what the activity actually does makes life so much easier for the user of your activity. And remember he is a developer so some day he might just return the favor The default looks like this. So changing...