Go Premium for a chance to win a PS4. Enter to Win

x
?
Solved

Treeview in-place editing problem

Posted on 2004-08-18
3
Medium Priority
?
792 Views
Last Modified: 2010-04-16
Delphi 6
Win XP Home


I have a Treeview and a series of Toolbuttons.

User clicks the "Add Toolbutton".  This creates a new TreeNode and sets it to Node.EditText;
The user enters random text and presses enter.  The label data is processed by the TV.OnEdited event.

So far so good.

If the user changes the node's label but does not hit ENTER, but instead clicks another node or another control, the TV.OnEdited event doesn't seem to get called.    I tried to set the OnChanging event to say

   If (Tv.IsEditing) then
     TV.Selected.EndEdit(FALSE);

but the data is still not saved.  The label itself is changed but I have to commit the changes to a record as well and that occurs in the OnEdited event.   Any ideas?

Don
0
Comment
Question by:d32coder
  • 2
3 Comments
 
LVL 3

Accepted Solution

by:
Tyrsis earned 2000 total points
ID: 11835150
Hi there,

I just tried duplicating your problem and just couldn't.  I used a button to add a node via:

var
    TreeNode : TTreeNode;
begin
    TreeNode := TreeView1.Items.Add(nil, '');
    TreeNode.EditText;
end;

After that, the OnEditing gets hit, I entered random characters, and clicked off the window / another tree node, and my OnEdited event was hit.  Perhaps this is a bug in Delphi 6?  Do you have all the service packs installed?  The only time I didn't get an OnEdited event was when the Caption entered was the same as what it was before editing.  Perhaps you can post a small sample that doesn't work and maybe we can spot the problem?

Tyrsis
0
 

Author Comment

by:d32coder
ID: 11838213
Thanks for your help.    I'll review my OnEdited code a little better and see if I made an error in the way I stored the changes in my record.   I'll be back to this topic soon.

Don
0
 

Author Comment

by:d32coder
ID: 11840252
Well, Placed a ShowMessage at the top of my OnEdited event and it does indeed fire.  My problem is in my data storage routine, not in the component.  Points awarded for the time you spent trying to reproduce the error.

Don
0

Featured Post

Hire Technology Freelancers with Gigs

Work with freelancers specializing in everything from database administration to programming, who have proven themselves as experts in their field. Hire the best, collaborate easily, pay securely, and get projects done right.

Question has a verified solution.

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

In this tutorial I will show you how to use the Windows Speech API in Delphi. I will only cover basic functions such as text to speech and controlling the speed of the speech. SAPI Installation First you need to install the SAPI type library, th…
In my programming career I have only very rarely run into situations where operator overloading would be of any use in my work.  Normally those situations involved math with either overly large numbers (hundreds of thousands of digits or accuracy re…
We’ve all felt that sense of false security before—locking down external access to a database or component and feeling like we’ve done all we need to do to secure company data. But that feeling is fleeting. Attacks these days can happen in many w…
Look below the covers at a subform control , and the form that is inside it. Explore properties and see how easy it is to aggregate, get statistics, and synchronize results for your data. A Microsoft Access subform is used to show relevant calcul…

885 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