Documentation on XFGanttTaskCollection

Hi Sergey

We are working on improving our documentation for developers. Till we got everything covered, the market place is a great source of knowledge.

I learned a lot of interesting advanced concepts just by analyzing marketplace solutions. 

The gantt component is used in the task scheduler marketplace solution. If you download an old version, the business rules are not encrypted and still accessible.

Load it to an empty application and have a look.

Good luck.

Thanks Christian,

For those interested, here's a bot of code I received that is a starting point for the Gantt component :

Imports System
Imports System.Collections.Generic
Imports System.Data
Imports System.Data.Common
Imports System.Globalization
Imports System.IO
Imports System.Linq
Imports System.Windows.Forms
Imports Microsoft.VisualBasic
Imports OneStream.Finance.Database
Imports OneStream.Finance.Engine
Imports OneStream.Shared.Common
Imports OneStream.Shared.Database
Imports OneStream.Shared.Engine
Imports OneStream.Shared.Wcf
Imports OneStream.Stage.Database
Imports OneStream.Stage.Engine

Namespace OneStream.BusinessRule.DashboardDataSet.GANTT
Public Class MainClass
Public Function Main(ByVal si As SessionInfo, ByVal globals As BRGlobals, ByVal api As Object, ByVal args As DashboardDataSetArgs) As Object
Try
Select Case args.FunctionType

Case Is = DashboardDataSetFunctionType.GetDataSetNames
Dim names = New List(Of String)()
names.Add("GanttDataSet")
Return names

Case Is = DashboardDataSetFunctionType.GetDataSet

If args.DataSetName.XFEqualsIgnoreCase("GanttDataSet") Then
Return Me.GanttDataSet(si, Globals)
End If

End Select

Return Nothing
Catch ex As Exception
Throw ErrorHandler.LogWrite(si, New XFException(si, ex))
End Try
End Function


Public Function GanttDataSet(ByVal si As SessionInfo, ByVal globals As BRGlobals) As DataSet
Try
Dim now As DateTime = DateTime.UtcNow
Dim topLevel As New XFGanttTaskItem("Top Level task to appear", "Top Level Task to appear", "Top Level description to appear", WorkflowStatusTypes.Completed, XFImageFileSourceType.Unknown, "", now, now.AddDays(2), SharedConstants.DateTimeMinValue, False, 80.0, True, "", Nothing, Nothing)

Dim dependencies As New List(Of String)()
dependencies.Add(topLevel.UniqueName)
Dim dependentTask1 As New XFGanttTaskItem("DT1", "Dependant task 1 to appear", "Dependant task 1 description", WorkflowStatusTypes.Unknown,XFImageFileSourceType.SystemDatabaseFile, "StatusOrangeBall", now.AddDays(2).AddHours(8), now.AddDays(4), SharedConstants.DateTimeMinValue, False, 0.0, False, "", Nothing, dependencies)
Dim dependentTask2 As New XFGanttTaskItem("DT2", "Dependent Task 2 to appear", "Dependant task 2 description", WorkflowStatusTypes.Unknown,XFImageFileSourceType.SystemDatabaseFile, "StatusOrangeBall", now.AddDays(2).AddHours(8), now.AddDays(4), SharedConstants.DateTimeMinValue, False, 0.0, False, "", Nothing, dependencies)

dependencies = New List(Of String)()
dependencies.Add(dependentTask1.UniqueName)
dependencies.Add(dependentTask2.UniqueName)
Dim lastTask As New XFGanttTaskItem("LastTask", "Last Task to appear", "Last Task description", WorkflowStatusTypes.InProcess, XFImageFileSourceType.Unknown, "", now.AddDays(5), now.AddDays(7), SharedConstants.DateTimeMinValue, False, 0.0, True, "", Nothing, dependencies)

Dim reviewMilestone As New XFGanttTaskItem("Review", "Review to appear", "Last Task description", WorkflowStatusTypes.NotExecuted, XFImageFileSourceType.Unknown, "" ,now.AddDays(7), now.AddDays(7).AddHours(1), SharedConstants.DateTimeMinValue, True, 0.0, False, "", Nothing, Nothing)

Dim children As New List(Of XFGanttTaskItem)()
children.Add(topLevel)
children.Add(dependentTask1)
children.Add(dependentTask2)
children.Add(lastTask)
children.Add(reviewMilestone)
Dim summaryTask1 As New XFGanttTaskItem("SummaryTask1", "Summary Level Task to appear", "Summary Level description", WorkflowStatusTypes.Unknown,XFImageFileSourceType.Unknown, "", now, now.AddDays(7), SharedConstants.DateTimeMinValue, False, 0.0, False, "", children, Nothing)

Dim tasks As New List(Of XFGanttTaskItem)()
tasks.Add(summaryTask1)
Dim ganttCollection As New XFGanttTaskCollection(tasks)

Return ganttCollection.CreateDataSet(si)

Catch ex As Exception
Throw ErrorHandler.LogWrite(si, New XFException(si, ex))
End Try 
End Function

End Class
End Namespace