Hi All,
Please could someone give me an example of how to programmatically add column and then items into a TValueListEditor?

Thanks

Richard
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Hi,

Please could someone give me an example of how to programmatically add column and then items into a TValueListEditor?

You cannot (maybe you can, but you really should NOT) add colums to TValueListEditor.
It will always have exactly 2 colums by design.

Adding items isn't that hard.

The easiest way is to add the Key/Value pair to the Strings property:

ValEdit.Strings.Add('MyValue=AValue');

If you want you can hav teh Value column for this item behave like a dropdownlist:

  with ValEdit.ItemProps['MyValue'] do
  begin
    KeyDesc := 'MyValue: PickList';  //optional description
    EditStyle := esPickList;
    ReadOnly := True;  //user cannot add options to dropdownlist
    PickList.Add('AValue');
    PickList.Add('AnotherValue');
  end;

Bart

Bart,
Many thanks for your reply, it's starting to make sense now :) It is possible to make the "key" column read only?

Richard

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Richard Mace wrote

It is possible to make the "key" column read only?

Look at KeyOptions property.
If you exclude KeyEdit from it, the Key column will not be editable by the user.

You can set it in OI or by code:

ValEdit1.KeyOptions := ValEdit1.KeyOptions - [KeyEdit];

Bart

Hi Bart,
Many thanks for your reply.

I've done that, but it is still editable?
I'm using Lazarus 1.012 and Windows XP?

Thanks for looking into this for me

Richard
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Richard Mace wrote

> If you exclude KeyEdit from it, the Key column will not be editable by I've done that, but it is still editable?

Works for me in trunk.

I have attached a test suite I use for development of ValEdit. Build and run.

Please check with 1.2 RC1 or trunk.

Check or UnCheck the Keyedit checkbox and see the result. If you encounter a situation where thecheckbox for Keyedit is UnChecked and you still can edit, then please press the speedbutton with the questionmark (?).
It'll write down the actual value of KeyEdit in KeyOptions. If that also says FALSE, then report back:
The status of all checkboxes.

Bart
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Hi Bart,
Yes, all working in Trunk
Thanks for all of your hard work.

Richard

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Richard Mace wrote

Hi Bart, Yes, all working in Trunk

Good to hear.

Thanks for all of your hard work.

Glad to be of help.

Bart