Solved

Help - DBLookUpComboBox

Posted on 2004-04-23
3
404 Views
Last Modified: 2010-04-16
I have a DBLookUpComboBox for the user to navigate through a DataSet but I didn´t assign a DataSource and a DataField to it because I don´t want it to post anything so I just assigned the ListSource, ListField and KeyField to show. But what I need to do is that when the user opens that form, I need  DBLookUpComboBox to show the first record on the DataSet and it´s showing me Blank.
0
Comment
Question by:fabyola
3 Comments
 
LVL 12

Expert Comment

by:Ivanov_G
ID: 10899190

  1) remove the field value from the dataset

  procedure TForm1.ADOQuery2BeforePost(DataSet: TDataSet);
  begin
    with DBLookupComboBox1 do
      DataSource.DataSet.FieldByName(DataField).Value := null;
  end;

  2) add 2 additional components - DataSource and DataSet (Query, etc) where you are not performing Post operation
0
 

Author Comment

by:fabyola
ID: 10899335
Didn´t work. I want to do it without having to put a DataSet and assigning a DataSource and DataField to my DBLookUpComboBox.
0
 
LVL 17

Accepted Solution

by:
mokule earned 50 total points
ID: 10899566

  Table1.First;
  DBLookupComboBox1.KeyValue := Table1.FieldByName('xxx').Value;
0

Featured Post

ScreenConnect 6.0 Free Trial

Discover new time-saving features in one game-changing release, ScreenConnect 6.0, based on partner feedback. New features include a redesigned UI, app configurations and chat acknowledgement to improve customer engagement!

Question has a verified solution.

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

Suggested Solutions

Title # Comments Views Activity
Tviruailstringtree sort multi columns on header click 1 63
Graphics32 under Delphi 10.1 Berlin 2 68
Tvertscrollbox like a whatsapp layout 5 28
enhance the following code 3 32
Introduction The parallel port is a very commonly known port, it was widely used to connect a printer to the PC, if you look at the back of your computer, for those who don't have newer computers, there will be a port with 25 pins and a small print…
Introduction Raise your hands if you were as upset with FireMonkey as I was when I discovered that there was no TListview.  I use TListView in almost all of my applications I've written, and I was not going to compromise by resorting to TStringGrid…
This video shows how to quickly and easily add an email signature for all users on Exchange 2016. The resulting signature is applied on a server level by Exchange Online. The email signature template has been downloaded from: www.mail-signatures…
A short tutorial showing how to set up an email signature in Outlook on the Web (previously known as OWA). For free email signatures designs, visit https://www.mail-signatures.com/articles/signature-templates/?sts=6651 If you want to manage em…

831 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