Data-aware edit field

Thread View: comp.lang.pascal.delphi.components.writing

2 messages

[T] Back to Threads [V] Tree View [G] Group Articles

2 total messages Started by Marc Scheuner Mon, 05 Jan 1998 00:00

#41

Author: Marc Scheuner
Date: Mon, 05 Jan 1998 00:00

25 lines
1704 bytes

Folks

I have a non-visible component that "attaches" to two edit fields and
provides a means of displaying a code in one of the edit fields, and
the corresponding description in the other edit field (by means of a
lookup table). This works nicely with TEdit fields.

But, when I have a TDBEdit field, the component seems to work alright:
if I enter a valid code in the code DBedit field, the full text DBedit
field gets updated with the corresponding description that belongs to
that code, but if I tab into the full text DBedit field, I get the
value stored on the underlying table again, instead of the new value. 

What's wrong? I am setting the new values of the DBedit fields by
assigning new values to their .Text properties, I was expecting that
this should be enough to get the field value updated (but obviously
it's not enough).

Any hints? Thanks in advance!
Marc

======================================================================
[ Marc Scheuner, marc.scheuner@berner.ch  CH-3001 BERNE, Switzerland ]
======================================================================

Re: Data-aware edit field

#42

Author: Stephen Moran
Date: Mon, 05 Jan 1998 00:00

36 lines
2249 bytes

The dbEdit's Field has to have its value set. Table.Post after setting
the dbEdit's Text should do it.

Marc Scheuner wrote:
> 
> Folks
> 
> I have a non-visible component that "attaches" to two edit fields and
> provides a means of displaying a code in one of the edit fields, and
> the corresponding description in the other edit field (by means of a
> lookup table). This works nicely with TEdit fields.
> 
> But, when I have a TDBEdit field, the component seems to work alright:
> if I enter a valid code in the code DBedit field, the full text DBedit
> field gets updated with the corresponding description that belongs to
> that code, but if I tab into the full text DBedit field, I get the
> value stored on the underlying table again, instead of the new value.
> 
> What's wrong? I am setting the new values of the DBedit fields by
> assigning new values to their .Text properties, I was expecting that
> this should be enough to get the field value updated (but obviously
> it's not enough).
> 
> Any hints? Thanks in advance!
> Marc
> 
> ======================================================================
> [ Marc Scheuner, marc.scheuner@berner.ch  CH-3001 BERNE, Switzerland ]
> ======================================================================

-- 
 +--------------------------------------------------------------------+
 |  Steve Moran, Flying Objects Ltd, London.                          |
 |  Custom-made Computer Programs.  Email: flyingobjects@hotmail.com  |
 +--------------------------------------------------------------------+

Thread Navigation

This is a paginated view of messages in the thread with full content displayed inline.

Messages are displayed in chronological order, with the original post highlighted in green.

Use pagination controls to navigate through all messages in large threads.

Back to All Threads