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Treeview - Drag & Drop

Aspose.Email Product Family
#1

Hi

I just started to use the Drag and Drop feature and I have some problems.

I found how to accept drop from Outlook and/or Windows Explorer into a TreeView (see DirectoryTreeView1in my sample) but ...

-the treeview does not accept drops from any other control (like other treeviews on the same form)

-the treeview does not accept to move a node within itself!

I need a regular TreeView (like the TreeView2 instance in my sample) but that also accept drops from Outlook and/or Windows Explorer.

#2

Thanks for your post.

We are looking the code and debugging. I will keep you posted.

Best regards

#3

Hello,

We are still working on this bug. Not much progress by now. :(

I will try the best to fix it before next week.

Thanks for your pacience.

#4

Hello,

Could you try to use this hotfix?

Let me know if it works,

Best regards,

#5

So far, it seems to be working, I will do other tests later today (and maybe tomorrow).

I have seen that you have sent a debugging version (includes the .pdb file). Will it be possible for you to make a "release" build?

#6

Hello,

That is a release build but with pdb for helping debug. Anyway, We will release an official build shortly. I will keep you posted.

Best regards.

#7

It seems that I have answered a bit too fast.

Apparently your patch work for a regular System.Windows.Forms.TreeView but we are using a Infragistics.Win.UltraWinTree.UltraTree and it doesn't work.

Can you help me on this?

#8

After some other test, the DragDrop event is working correctly but not the DragOver and neither the DragEnter in which e.Data is nothing!

#9

Hello,

Thanks for your post.

1. Could you please provide me the code how you use our component and the infragristics'? I will try to repro and debug into it.

2. I will check the dragover event and dragenter shortly.

Best regards,

#10

The DLLs of Infragistics are in the bin\debug folder.

About the DragOver in the Infragistics treeview (bottom-right treeview control):

  • OK = When dropping a tree node from another treeview (from the leftmost one for example)
  • OK = When dropping a email message from Outlook
  • NOT OK = When dropping a file from Windows Explorer in which case e.data is nothing
#11

Hello,

We are still working on this issue. I will get back to you as soon as I can.

Thanks for your patience.

#12

Any good news for me?

#13

Hello,

We have done many investigation, but no luck. It looks like we cannot get the data on DragOver event. Only the DragEnter and DragDrop can get the data as you said.

I suggest you use the DragEnter to get the data and then use it in DragOver it you do need it.

Thanks,

#14

but e.data was Nothing even in DragEnter!

#15

Please try the attachment. Let me know if it works.