Due to a strange behavior in my application, i am forced to reload the designer before calling WorkflowInvoker.Invoke on it.
wd.Flush();
SaveXamlFile(currentXamlPath, wd.Text);
I just flush the content, and write the wd.Text to a file.
//cleanup the previous designer
if (wd != null)
{
wd.ModelChanged -= new EventHandler(Designer_ModelChanged);
}
//designer
wd = new WorkflowDesigner();
designerArea.Child = wd.View;
this.DebuggerService = this.wd.DebugManagerView;
//property grid
propertiesArea.Child = wd.PropertyInspectorView;
//event handler
wd.ModelChanged += new EventHandler(Designer_ModelChanged);
//error service
wd.Context.Services.Publish<IValidationErrorService>(errorService);
wd.Context.Items.Subscribe<Selection>(OnItemSelected);
I then recreate a new instance of the WorkflowDesigner and load the previously saved file.
wd.Load(currentXamlPath);
I call WorkflowInvoker.Invoke and inside my custom activity which derives from CodeActivity i am taking it's name:
OK, fine until now, i have a 1.2 Id there.
I want to update some of the fields of this Activity via its ModelItem in order to display them in the GUI right away.
IEnumerable<ModelItem> activityCollection = currentWorkflow.Find(currentWorkflow.Root, typeof(Activity));
But here comes the issue:
I can't find that my Activity id there. Is now transformed from 1.2 to 2. Why is this happening?
I've tried to send a this reference from my Activity Execute method and searched it by ref but all i get is nulls.
ModelItem temp = activityCollection.FirstOrDefault((m) => (m.GetCurrentValue() == a));
I am sure i am missing something here, but i can't figure out what is it.
I found a workaround on this :
On my custom activities i am adding a Guid property and I override CacheMetadata:
public Guid unique { get; set; }
protected override void CacheMetadata(CodeActivityMetadata metadata)
{
if (unique.ToString() == "00000000-0000-0000-0000-000000000000")
unique = Guid.NewGuid();
}
When i drag the activity on the designer, the unique id is generated. I make sure that this portion of code is called only once.
Why is that?
Because after a call like this,
IEnumerable<ModelItem> activityCollection = currentWorkflow.Find(currentWorkflow.Root, typeof(Activity));
each model in the activity collection contains that property ( unique of type Guid ) with the value of the first assignment made in CacheMetadata. I can't explain this behavior, i've just taken it into consideration.
Who calls again that CacheMetadata ? something like this :
Activity root = ActivityXamlServices.Load(currentXamlPath);
WorkflowInspectionServices.CacheMetadata(root);
And so, the Guid is changed and its utility is gone.
This way, i am able to get the ModelItem for my custom activity and update some of its properties which are immediately displayed in the GUI.
Related
I just changed our database, adding a new column to a table and setting it as a foreign key. We're using EF4 Database first, so I updated the model from the DB, added my new field to the DTOs and everything looked great until I tried to save data to it.
The new column is called DiaryEventId, and because it's a FK there's also a virtual property on the object called DiaryEvent. Here's what the code looks like:
public void SaveDocument(Guid CaseId, string diaryText, string ActivityType)
{
Guid eventTypeId = RepositoryHelper.GetDiaryEventFromCache("Document Uploaded", _commonQueryContext);
//this wanders off and created a diary event object, adds it to
//the context and returns its ID
Guid diaryId = RepositoryHelper.AuditEvent(CaseId, diaryText, commonUpdateContext);
Entities.DocumentMetadata docData = new Entities.DocumentMetadata()
{
Id = Guid.NewGuid();,
ActivityType = activityType,
DiaryEventId = diaryId
};
_commonUpdateContext.DocumentMetadatas.Add(docData);
_commonUpdateContext.SaveChanges();
}
This compiles and runs fine, and when you step through it it appears to function as expected - diaryId is generated and set on the object. But in the DB, it always appears as null.
I've tried calling SaveChanges after adding the diary event (to make sure the key has something to connect to) and I've tried adding the actual DiaryEvent object to the virtual property rather than just the ID - both have the same effect.
When I watch what's going on in SQL Profiler, I can see that the INSERT statement simply ignores my new column completely - it's not listed in the insert columns at all.
Really got no idea what's going on. Any ideas?
Try modifying the object after adding it to the context, just as a test.
_commonUpdateContext.DocumentMetadatas.Add(docData);
Entities.DocumentMetadata docData = new Entities.DocumentMetadata()
{
Id = Guid.NewGuid();,
ActivityType = activityType,
DiaryEventId = diaryId
};
_commonUpdateContext.SaveChanges();
Or is this perhaps a typo?
Entities.DocumentMetadata docData = new Entities.DocumentMetadata()
{
Id = Guid.NewGuid();, <-------------typo?
Beyond that, it will require a bit of info on how you have your entities mapped out. Is there a navigation property between DiaryEvent and DocumentMetadata? Is the key defined as nullable (I'm assuming it is)? Is ActivityType getting persisted correctly?
New to Workflow Foundation, so it may be a basic question for many of you.
I have a workflow designer (client) /server application.
In the designer I can upload workflows to the server , which stores them in the DB. The designer can request to download a workflow from the server. Once downloaded , we can modify it in the designer and upload it again.
To be able to do that I need to add some sort of ID/Key to the workflow.
What's the best way to do that?
I was thinking about adding a property to the ActivityBuilder, but doing that adds it to the argument list, which doesn't seem right...
Any help would be much appreciated
Hi #Will, I gave it a go attaching the property to Activities but I can not get it working. I'm not using any models like WorkflowRecord, it's just a basic desginer.
I use _workflowDesigner.Save(path); to save it or _workflowDesigner.Load(path); to load it.
I create and add the attached property
attachProp = new AttachedProperty<int?>()
{
Name = "Key",
IsBrowsable = true,
Getter = (modelItem) => 5,
Setter = ((modelItem, keyValue) => modelItem.Properties["Key"].SetValue(keyValue)),
OwnerType = typeof(Activity)
};
_workflowDesigner.Context.Services.GetService<AttachedPropertiesService>().AddProperty(attachProp);
If I try to access the attached property, it throws me an exception (doesn't contain a definition for key)
dynamic mainActivity = ((_workflowDesigner.Context.Services.GetService<ModelService>().Root.GetCurrentValue() as ActivityBuilder).Implementation as Activity);
int? testValue = mainActivity.Key; //Exception, Activity' does not contain a definition for 'Key'
I read through this [post] (http://blogs.msdn.com/b/kushals/archive/2010/01/04/base-designer-with-additional-adornments.aspx) to add the attach property to the activity
Attached properties, via the AttachablePropertyServices Class.
public class WorkflowRecord
{
static AttachableMemberIdentifier Id =
new AttachableMemberIdentifier(typeof(Guid), "Id");
public static object GetCommentText(object instance)
{
object viewState;
AttachablePropertyServices.TryGetProperty(instance, Id, out viewState);
return viewState;
}
public static void SetCommentText(object instance, object value)
{
AttachablePropertyServices.SetProperty(instance, Id, value);
}
}
You can use this to get or set your database Id on an instance of the workflow, and it will be serialized/deserialized to/from xaml.
<Activity
xmlns:me="clr-namespace:Herp;assembly=derp"
me:WorkflowRecord.Id="This is a guid lol"
x:HideAdditionalAttributesBecauseThisIsAnExample="true" />
For more info, read this blog post on msdn
I have two pick-list in Car details entity. I'm setting the Model (cir_model) Picklist value with from the input parameter (that is CrmNumber) of Custom Workflow activity and it's working as expected, and the second pick-list Marque (cir_marque) will be set logically using the Model pick-list.
Logic should be if Model is set to 'Ac Ace' then Marque should be set to 'Ac'. Take value 'Ac' using Split() from the string 'Ac Ace'.
Normally in C# this can be done easily but in CRM 4.0 how this can be achieve (How I'll set 'Ac' to Marque)
public static DependencyProperty modelProperty = DependencyProperty.Register("model",
typeof(int), typeof(CreateCardetails));
[CrmInput("Model")]
public int model
{
get
{
return (int)base.GetValue(modelProperty);
}
set
{
base.SetValue(modelProperty, value);
}
}
public static DependencyProperty ContactProperty =
DependencyProperty.Register("Contact", typeof(Lookup), typeof(CreateCardetails));
[CrmInput("Contact ID")]
[CrmReferenceTarget("contact")]
public Lookup Contact
{
get
{
return (Lookup)base.GetValue(ContactProperty);
}
set
{
base.SetValue(ContactProperty, value);
}
}
protected override ActivityExecutionStatus Execute(ActivityExecutionContext
executionContext)
{
//Create an car details record which will be linked to the contact record
DynamicEntity cardetails = new DynamicEntity("cir_cardetails");
cardetails["cir_carsdetailsid"] = Contact;
//Setting the picklist value of Model
Picklist modelPickList = new Picklist();
modelPickList.Value = model.Value;
cardetails.Properties.Add(new PicklistProperty("cir_model",modelPickList));
/*
Here the logic should be done for setting Marque (cir_model) value
Picklist marquePickList = new Picklist();
marquePickList.Value = ???
cardetails.Properties.Add(new PicklistProperty("cir_marque",marquePickList));
*/
//Creating the car details record
Guid carkey = crmService.Create(cardetails);
}
How we can set the Marque value logically, I have left the code blank for this like below
/*
Here the logic should be done for setting Marque (cir_marque) value
Picklist marquePickList = new Picklist();
marquePickList.Value = ???
cardetails.Properties.Add(new PicklistProperty("cir_marque",marquePickList));
*/
Please arrange to help me out on this, all suggestions are welcome.
There is no language CRM 4.0, in CRM 4.0 you code in c#. The only thing that change is the way you work with new types.
In Workflow you don't work with controls, you work with entities and the related attributes. So you "just" need to get the attribute cir_model, do a subtring and find the available options in Marque and set the corrected value. Check this sample from SDK.
You can use JavaScript or C# (Plug-In, Workflow) to accomplish this. There are some considerations to think of when choosing which approach to use.
If you want the user to be able to see the result in real time (when they select) then you can use JavaScript.
If you don't care for the user to see the result, or there is data coming in from an outside source (not the user form), then think about using a plugin.
I don't think you should have to use a WF to do this, plugins are just as easy to write and will happen instantaneously instead of waiting for the async process to complete.
I need to get the component associated to a Activity at the event system.
I try to get the component ID using:
public void OnActivityInstanceFinishPost(ActivityInstance activityInstance, string finishMessage, string nextActivity, string dynamicAssignee)
{
if (activityInstance.ProcessInstance.ProcessDefinition.Title.Equals("Component Process IESE"))
{
if (activityInstance.ActivityDefinition.Title.Equals("Create or Edit Component"))
{
WFE workflow = tdse.GetWFE();
try
{
Component comp = (Component)activityInstance.ProcessInstance.Item;
XMLReadFilter filter = new XMLReadFilter();
String processHistoryId = activityInstance.ProcessInstance.ID.Replace("131076", "131080");
ProcessHistory hist = (ProcessHistory)tdse.GetObject(activityInstance.ProcessInstance.ID, EnumOpenMode.OpenModeView, Constants.URINULL, filter);
}
catch (Exception e)
{ }
}
}
}
we try different options:
Component comp = (Component)activityInstance.ProcessInstance.Item;
But this solution returns a null.
Then I found in internet the next solution:
XMLReadFilter filter = new XMLReadFilter();
String processHistoryId = activityInstance.ProcessInstance.ID.Replace("131076", "131080");
ProcessHistory hist = (ProcessHistory)tdse.GetObject(activityInstance.ProcessInstance.ID, EnumOpenMode.OpenModeView, Constants.URINULL, filter);
Component comp = hist.Item as Component;
But the ProcessHistory object is null.
How can I determine the component associated to the activityInstance?
Thank you.
After reviewing the functionality needed by Guskermitt, I've shown him a neater way to do what he needs to do. In short, EventSystem is not needed in this case.
His goal is to send an email after a component has been approved, the approach will be the following:
Add to workflow a new automatic activity.
Create a new .NET assembly, in this case a C# class to do what he needs to do.
Register the assembly in the GAC.
Add logic in the new automatic activity in workflow to use the .NET assembly.
2#
[ProgId("WfHelper")]
[ComVisible(true)]
public class Helper
{
public void SendMail(string workItemId)
{
var session = new Session();
.
.
.
4#
dim helper
set helper = CreateObject("WfHelper")
call helper.SendMail(CurrentWorkItem.ID)
set helper = nothing
FinishActivity “Email has been sent"
ActivityInstance has a WorkItems property (inherited from Activity) that contains a reference to your Component.
OnActivityInstanceFinishPost means that your activity is finished. Therefore there is no more work item associated with it. However, you are getting the process instance and the work item associated with that. If you get null there, then it suggests your workflow process is done and the component has moved out of workflow. From looking at your code, it is quite likely that your ProcessInstance is completed (it won't be null, but it won't have any item associated with it).
I suspect that you've read this post http://www.tridiondeveloper.com/autopublishing-on-workflow-finish suggesting to look in the history. Have you looked into the history via the CM GUI, is the history item there? If it isn't, that's why you get null. A workflow process gets moved to history when it is completed. So double check that you are indeed on the last workflow activity before looking at the history.
By looking at your code, the error seems to be that you are trying to get a history object using activityInstance.ProcessInstance.ID. GetObject() should return an item, but your cast to a ProcessHistory should break and then you quietly eat the exception. You need to pass in the History ID, not the ProcessInstance ID as follows:
ProcessHistory hist = (ProcessHistory)tdse.GetObject(processHistoryId, EnumOpenMode.OpenModeView, Constants.URINULL, filter);
I am trying to make a simple plugin for MS Dynamics CRM 4.0 where send data of a salesorder in a SOAP message on the update of the order.
The strange thing is that I get this error every other time i try to save /(execute the plugin).
So when I update (any field) of a salesorder and then save I get the error:
The given key was not present in the dictionary.
When I save again right away after that(without even changing anything in between the two saves) it executes correctly and gives me all data I want. It is really every time the same thing: first save: error, second save: execute correctly.
Any ideas what this could be?
This is the first part of my code; where it actually gets the dataset of the salesorder in this case:
public class CompleteOrderPlugin : IPlugin
{
public void Execute(IPluginExecutionContext context)
{
DynamicEntity entity = null;
if (context.InputParameters.Properties.Contains(ParameterName.Target) &&
context.InputParameters.Properties[ParameterName.Target] is DynamicEntity)
{
entity = (DynamicEntity)context.InputParameters[ParameterName.Target];
if (entity.Name != EntityName.salesorder.ToString()) { return; }
}
else
{
return;
}
The rest is where I use values from attributes to fill my own variables.
I fixed this by first making a Post Image of the salesorder in the plugin regsitration tool and then using the values in the Post Image instead of the ones comming directly from the salesorder. This I did because on a update you get only the values that actually changed.