Solved

ADOTable + DBLook

Posted on 2003-11-03
3
422 Views
Last Modified: 2010-04-05
What is the diference between DBLookUpComboBox and DBComboBox ?
I have a ADOTable
how can i add dinstinct values from the adotable in one of this below (DBLookUpComboBox and DBComboBox)
Thanks
0
Comment
Question by:tinti
[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
3 Comments
 
LVL 3

Expert Comment

by:marcoszorrilla
ID: 9671228
Basically a DbCombobox has only DataField and DataSource it can sho data from a Table.

But DblookUpCombobox has a DaTasource and a ListSource its say you can show values from a table and save in anohter table the DataSource.

Best Regards.
Marcos.
0
 

Author Comment

by:tinti
ID: 9671401
But  a little source code if is possible
Thanks
0
 
LVL 27

Accepted Solution

by:
kretzschmar earned 60 total points
ID: 9677141
a dbcombobox inserts the selected item as is in teh databasefield

a dblookupcombobox inserts the keyfield of the selected item from the lookuptable in the databasefield

any source you don't have, because usual all is adjusted at designtime -> no code needed

a sample configuration for the dblookupcombo

lets have a salut-table (two fields)

Salut_ID Salut_Text
1 Mister
2 Misstress
3 Miss
....

and a adresstable like

Adress_ID Salut_ID Name ...
1 1 Kretzschmar
...

now you can define for the Field Salut_ID from adress a lookup
to the saluttable

the property-entries in the dblookupcombobox are

Datasource -> TDatasource linked to the Adress-Dataset
DataField -> Field Salut_ID from Adress
KeyField -> Field Salut_ID from Table Salut
ListSource -> TDatasource linked to the Salut-Dataset
ListField -> Field Salut_Text from Salut

meikl ;-)
0

Featured Post

Free Tool: Port Scanner

Check which ports are open to the outside world. Helps make sure that your firewall rules are working as intended.

One of a set of tools we are providing to everyone as a way of saying thank you for being a part of the community.

Question has a verified solution.

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

Suggested Solutions

Title # Comments Views Activity
Can Viruses spread while transferring Binary data with Winsock 2 103
Delphi Yen format 3 70
Delphi and Access based Enumeration 9 85
Graphics32 under Delphi 10.1 Berlin 2 168
The uses clause is one of those things that just tends to grow and grow. Most of the time this is in the main form, as it's from this form that all others are called. If you have a big application (including many forms), the uses clause in the in…
Have you ever had your Delphi form/application just hanging while waiting for data to load? This is the article to read if you want to learn some things about adding threads for data loading in the background. First, I'll setup a general applica…
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…
Finding and deleting duplicate (picture) files can be a time consuming task. My wife and I, our three kids and their families all share one dilemma: Managing our pictures. Between desktops, laptops, phones, tablets, and cameras; over the last decade…

740 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