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Processes where running into error state because of custom process datafields containing wrong values. So I tried to access this data by API to change the contents of the fields. But everything I try does not work.


Example:


Connection

connection = new Connection();
connection.Open(_serverName, connectionString.ToString());


ProcessInstance

pi = connection.OpenProcessInstance(86);


this code ends in an error like 'no such processinstance for user ...'. So this means I have to impersonate before but that didn't help. I guess because the process instance is not assigned to a user while being in error status. Also when I try to open a worklist but the process instances in error state don't appear in worklists.


So I tried this:


ServerItem

serverItem = connection.OpenServerItem("71_86");


That tells me that there is no item for this serial. I guess the serial is  'processID_processInstanceID' - is that wrong? What exactly is a ServerItem? Is it everything or only items that are not assigned to a user?


I also tried to use


SourceCode.Workflow.Management.

WorkflowManagementServer


and can list all process instances but there are no methods to work with the datafields. 


Help would be nice!

Hi,

First of all, you need to have 'Admin' rights on the process to call the following method: OpenProcessInstance.

Then, the following code sample must work in your case :

SourceCode.Workflow.Client.Connection connection = new
SourceCode.Workflow.Client.Connection();

SourceCode.Workflow.Client.ProcessInstance processInstance;

connection.Open("<STR_YOUR_SERVER>");
processInstance = connection.OpenProcessInstance(<INT_PROCID>);

processInstance.DataFields["<STR_YOUR_FIELD>"].Value = <STR_YOUR_VALUE>;

processInstance.Update();
connection.Close();

I hope that helps.

Regards.

Thanks!


The missing userrights were the problem.

Reply


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