New child or sibling item

[David]

Hi, Im still working on my project that uses GanttView. Data are linked to sql server database using a dataset. My problem occurs when I try to add a child or sibling item, because the new item does not appear until the data are saved to db, and I query again.

Of course I'm using the 'ItemChildIdNeeded' event, to assign the correct id

integerIdCounter = My last Id...

Private Sub RadGanttView1_ItemChildIdNeeded(sender As Object, e As Telerik.WinControls.UI.GanttViewItemChildIdNeededEventArgs) Handles RadGanttView1.ItemChildIdNeeded
        Me.integerIdCounter += 1
        e.ChildId = Me.integerIdCounter
 End Sub

What am I doing wrong?

[Dess | Tech Support Engineer, Principal]

Hello David,

Thank you for writing.

The ItemAdded event is fired on my end when adding a new child item for example. I have attached my sample project. Could you please specify the exact steps how to reproduce the problem or what changes I should perform in order to reproduce the experienced issue? Thank you in advance. 

While working on your case, I have encountered a visual glitch when adding an item. I have logged it in our feedback portal. You can track its progress, subscribe for status changes and add your vote/comment to it on the following link - feedback item.

I am looking forward to your reply.

Regards,
Dess
Telerik

[David]

Thank you, now I have discovered where the problem was. I had used a 'bigint' type (Sql Server) for 'Id' and 'ParentId' fields. And it seems that are not compatible with GanttView. I have changed to 'int' and now works properly.

Now I have another question, how can I change the Title task and the Start and End date before create the item? I have tried with this, but doesn't work. Any idea?? thank you.

 

Private Sub RadGanttView1_ItemAdding(sender As Object, e As GanttViewItemAddingEventArgs) Handles RadGanttView1.ItemAdding
        e.Item.Title = "My custom task"
        e.Item.Start = Now
        e.Item.End = Now.AddDays(1)
End Sub

 

[Dess | Tech Support Engineer, Principal]

Hello David,

Thank you for writing back.

You can change the item's information after it is added successfully, not before that, e.g. in the Click event of the menu item:
 

Private Sub RadGanttView1_ItemAdded(sender As Object, e As Telerik.WinControls.UI.GanttViewItemAddedEventArgs)
    addedItem = e.Item
End Sub

Private Sub RadGanttView1_ContextMenuOpening(sender As Object, e As Telerik.WinControls.UI.GanttViewContextMenuOpeningEventArgs)
    Dim item As RadMenuItem = DirectCast(e.Menu.Items(0), RadMenuItem)
    AddHandler item.Items(0).Click, AddressOf ItemClick
End Sub

Dim addedItem As GanttViewDataItem
Private Sub ItemClick(sender As Object, e As EventArgs)
    Me.RadGanttView1.GanttViewElement.GraphicalViewElement.Update(Telerik.WinControls.UI.RadGanttViewElement.UpdateActions.ExpandedChanged)
    addedItem.Title = "My custom task"
    addedItem.Start = addedItem.Start.AddDays(2)
    addedItem.End = addedItem.Start.AddDays(4)
End Sub

I hope this information helps. If you have any additional questions, please let me know.

Regards,
Dess
Telerik