Solved

DataObject

Posted on 1998-07-26
6
772 Views
Last Modified: 2012-06-21
I have a listview control which displays all the files in a selected directory (very much like the Window's Explorer).  I would like to add OLE drag functionality to this control but I am not sure how to do this.  Ideally, I would like to use, in the OLEStartDrag event,  

Data.SetData listview.SelectedItem.Key, vbCFFiles

since each item's key represents the path and name of the files.  However, when I do this I receive an error message or the like.  From the help file, I assume that this has something to do with a bstr variable(?) and the vbCFFiles format.  Since I am new to VB, I am not sure what this is all about and how to specify the vbCFFiles format with the data that I have.  If anyone knows how to do this and solve my OLE drag problem, please let me know.  More points await.

Thanks in advance, showme
0
Comment
Question by:showme
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 4
6 Comments
 

Author Comment

by:showme
ID: 1466754
Edited text of question
0
 

Author Comment

by:showme
ID: 1466755
Edited text of question
0
 
LVL 8

Expert Comment

by:MikeP090797
ID: 1466756
Try this:
Data.Files.Add listview.SelectedItem.Key
AllowedEffects = vbDropEffectCopy

0
Salesforce Made Easy to Use

On-screen guidance at the moment of need enables you & your employees to focus on the core, you can now boost your adoption rates swiftly and simply with one easy tool.

 

Author Comment

by:showme
ID: 1466757
Mike,
I tried the code you submitted but I received an error number 5 from the common controls DLL when I started to drag.  Let me know if there is another way.  

Thanks again, showme
0
 
LVL 6

Accepted Solution

by:
anthonyc earned 200 total points
ID: 1466758
here is a small example that works..  Place a listview and a textbox on your form, and set the textbox's OLEDROPMODE to Manual.


Option Explicit

Private Sub Form_Load()
    ListView1.ListItems.Add , "c:\winnt\notepad.exe", "c:\winnt\notepad.exe"
End Sub

Private Sub ListView1_MouseMove(Button As Integer, Shift As Integer, X As Single, Y As Single)
    If Button And vbLeftButton And (Not ListView1.SelectedItem Is Nothing) Then
        ListView1.OLEDrag
    End If
End Sub

Private Sub ListView1_OLEStartDrag(Data As ComctlLib.DataObject, AllowedEffects As Long)
    Data.Files.Add ListView1.SelectedItem.Key
    Data.SetData , vbCFFiles
    AllowedEffects = 3

End Sub

Private Sub Text1_OLEDragDrop(Data As DataObject, Effect As Long, Button As Integer, Shift As Integer, X As Single, Y As Single)
    Text1.Text = Data.Files(1)
End Sub

0
 

Author Comment

by:showme
ID: 1466759
Tried the code and it worked fine.  Thanks, Anthony!  If you have the chance can you explain why your code worked and the other didn't?  Does it have something to do with the line;

Data.SetData , vbCFFiles

Thanks again, showme
0

Featured Post

Salesforce Made Easy to Use

On-screen guidance at the moment of need enables you & your employees to focus on the core, you can now boost your adoption rates swiftly and simply with one easy tool.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Most everyone who has done any programming in VB6 knows that you can do something in code like Debug.Print MyVar and that when the program runs from the IDE, the value of MyVar will be displayed in the Immediate Window. Less well known is Debug.Asse…
Background What I'm presenting in this article is the result of 2 conditions in my work area: We have a SQL Server production environment but no development or test environment; andWe have an MS Access front end using tables in SQL Server but we a…
Get people started with the process of using Access VBA to control Outlook using automation, Microsoft Access can control other applications. An example is the ability to programmatically talk to Microsoft Outlook. Using automation, an Access applic…
Get people started with the utilization of class modules. Class modules can be a powerful tool in Microsoft Access. They allow you to create self-contained objects that encapsulate functionality. They can easily hide the complexity of a process from…

688 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question