Answer Questions
Kenneth MacDonald Windows SDK installation problem
Hello, I have a problem installing Windows SDK. Belove is error log file. Any help is appriciated. Thank's Tatjana Hi Tatjana, Are you installing the SDK to a networked drive or to a local drive I noticed a y: drive in your log. The SDK will not install properly to a networked drive. Please let me know if this was the problem. If not, there is another way we can pursue this. Thanks ...Show All
maur0_cr0mer Access USB devices using VB.Net
Hi all, Can anyone provide with information about accessing USB devices in VB.Net I tried google for Win32 API functions, but couldn't figure out what API's are needed. ASAIK, the SerialPort class provided with .Net framework cannot be used to access USB devices. Problem description: My problem is that I need to monitor a scanner attached to a USB port waiting for sanned data. Upon receiving data, I will want to inform the host applicat ...Show All
Dr Cube CallExternalMethodActivty with Input Parameter as Delegate
Hi, I needed to set a delegate as value for input parameter on CallExternalMethodActivty. It gives me "Object reference not set to an instance of an object." error if I try to set the refferance to Instance of the delegate. Is there a way to set refferance of Parameter value at runtime Or is there any attribute by which i can set a Delegate ref at Design time Hi, This sounds very si ...Show All
syperk Activity Properties
hi all, i know that i can bind activity properties to workflow properties using the designer; but is it also possible to bind activity properties to properties of other activities and: is it possible to bind activity properties not to a certain activity but to the parent activity’s properties if you know something, please tell me. :-) thanks in advance, regards, .k Yes, you can bind an ...Show All
kkkwj Error:"Currently selected property has a wrong type"
I was working on a WF project and all of the sudden I started receiving the following error message when using the WF Designer in Beta 2.2: ''Currently selected property has a wrong type 'WF.wfEventArgs instead of 'WF.wfEventArgs' Here's the fun thing. The types are the EXACT SAME TYPE. It is expecting what I provide it and it fails. Has anyone experienced this Thanks. Ok. That is enabling me to co ...Show All
Josemonpala How to create a workflow programmatically?
Are there any samples that would show how to create and/or modify a workflow programmatically, i.e. from a program, not from VS.NET IDE or a hosted designer For example, the program would create a new workflow, add a couple of activities to it, and save the serialized workflow definition (in a file or database). I can find examples explaining how to modify a workflow instance at run time, but I need to create ...Show All
ummroffice Passing parameters to child activities
Hi, when i did the following activities i got null reference exceptions, any kind of help is appreciated. Step1. my client code is initiating a sequential workflow with students array in the dictionary Step2. In seq work flow i have a child activity,and a while loop. what i intended to do is for each student do some operation on child activity. so for this i created a dependency property in childactivity called student. Step3. In th ...Show All
Marinko Karanovic Go-Live Runtime
Hi there Just a short question: Are the WF Designer Controls part of the WWF Go-Live Runtime or are they just part of the Visual Studio Extensions Thanks, Sebastian Hi Sebastian, If I understand correctly you are discussing re-hosting of the designer in a control. You can re-host the workflow desinger and make a designer as rich as you desire. Yes this feature is also supported with the Go-Live licenc ...Show All
ericmar Root Namespace for VB Project
It seems that I am required to have a Root Namespace specified in the project options for my Workflow Assembly. If I do not have a root namespace specified I receive the following error: option 'rootnamespace' requires ':<string>' I have currently only tried this in VB.NET and not C#, so I don't know if this happens in both languages. Is this some sort of a bug I like to expicitly declare my namespace for each class and remove th ...Show All
ChrisBuhi Probably I have some understanding problem of WF
I custom the workflow persistence service and save the workflow activity in Oracle database. After I modified the workflow design (for example: add a State activity), the Deserialize method fail: 'Load workflow instance failed: Index out of the bound of array'. Is it for the update of the workflow And how can I solve the problem Should I use WorkflowChanges object to modify all the workflow instances in the inside or outside If I have ...Show All
&#1512;&#1501;&#1502;&#1503; Problem Using ifElseactivity in an Embedded workflow designer
I'm trying to use a ifElse activity in an embedded workflow designer ( Workflow Designer Control Example downloaded from here: http://www.windowsworkflow.net/Downloads/Examples/Workflow%20Designer%20Control%20-%202005-09-24.exe ) I added a IfElse activity and then select one of the branches. In the property window I select a System.Workflow.Activities.Rules.RuleConditionReference Condition and then when I try to edit the Name prope ...Show All
CsharpDotnetDeveloper Communication between Workflow Instances without Runtime Service
Hi, how is it possible to communicate between workflow instances if i wouldn't like to use custom runtime services I would only like to reach a workflow instance property value. (The workflow instance might not be started.) Can DependencyPropeties be used for this scenario or do they support only Workflow Instance <-> Child Activites communication Thanks Osi Hi Osi, It is not possible to do this through the framework. Workflow ...Show All
Anoop.H.TVM InvokeWorkflow Dependecy .
Hi there, I have a question about the dependency of the invoke workflow activity, how can I make the child workflow is dependent with the parent workflow, i mean that the parent template will stop processing until the child template is finished. Thanks WWF team. Anyone got a Beta2 version of Ariel's InvokeWorkflowSync Activity they can share BaselN, The Invoke ...Show All
GrahamC Cannot add workflow into folder
When I create a folder under a project , and try to add the flow under it, if I click "add-->sequential workflow",VS2005 always add the item under the project root and namespace doesn't contain the folder name. But if I go thru another path "add-->new item-->sequential workflow", then it works fine. I don't see it is a big issue, but it's definitely a bug. Hope some Microsoft developer can see this post and fix it in the final r ...Show All
kitty2604 Bug? InvokeWorkFlow activity used with Sequential Workflow hosted in Console App
I've been experimenting with InvokeWorkFlow activity and found what I think might be a bug with the logic in hosting code for the console app. In the Main method, the WF runtime is instantiated and the started passing in the type for WorkFlow1. Before it starts the workflow however it wires up a handler for the WorkflowCompleted event that when called sets a AutoResetEvent which the main thread uses to terminate the WF runtime and en ...Show All