public SPWorkflowTaskCollectionInstance GetWorkflowAvailableRunCount(SPListItemInstance listItem, object guidOrWorkflow, object filter)
{
if (listItem == null)
{
throw new JavaScriptException(this.Engine, "Error",
"An instance of a SPListItem object must be supplied as the first argument.");
}
SPWorkflowTaskCollection result;
if (guidOrWorkflow is SPWorkflowInstance)
{
if (filter == Undefined.Value)
{
result = m_workflowManager.GetWorkflowTasks(listItem.ListItem,
(guidOrWorkflow as SPWorkflowInstance).SPWorkflow);
}
else
{
var wf = filter as SPWorkflowFilterInstance;
if (wf == null)
{
throw new JavaScriptException(this.Engine, "Error",
"An instance of a SPWorkflowFilter object must be supplied as the second argument.");
}
result = m_workflowManager.GetWorkflowTasks(listItem.ListItem,
(guidOrWorkflow as SPWorkflowInstance).SPWorkflow, wf.SPWorkflowFilter);
}
}
else
{
var guid = GuidInstance.ConvertFromJsObjectToGuid(guidOrWorkflow);
if (filter == Undefined.Value)
{
result = m_workflowManager.GetWorkflowTasks(listItem.ListItem,
guid);
}
else
{
var wf = filter as SPWorkflowFilterInstance;
if (wf == null)
{
throw new JavaScriptException(this.Engine, "Error",
"An instance of a SPWorkflowFilter object must be supplied as the second argument.");
}
result = m_workflowManager.GetWorkflowTasks(listItem.ListItem,
guid, wf.SPWorkflowFilter);
}
}
return(result == null
? null
: new SPWorkflowTaskCollectionInstance(this.Engine.Object.InstancePrototype, result));
}
