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csanesz
PostPosted: 31 Jul 2023, 07:38 
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Joined: 31 Jul 2023, 07:34
Posts: 7
How to colorize the first three elements in DBLookUpComboBoxEh.

I tried the two functions below but it didn't work.
DropDownBoxGetCellParams
DropDownBoxDrawColumnCell.

Can you help me?

Thanks!
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EhLibSupport
PostPosted: 01 Aug 2023, 00:54 
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Joined: 08 May 2014, 18:06
Posts: 663
Hello


You can't highlight cells in dropdownbox by row position
but you can highlight by values of the current record.

Using OnDropDownBoxGetCellParams event
Like this:
Code:
procedure TfrEditControls.DBLookupComboboxEh3DropDownBoxGetCellParams(
  Sender: TObject; Column: TColumnEh; AFont: TFont; var Background: TColor;
  State: TGridDrawState);
begin
  if (DBLookupComboboxEh3.ListSource.DataSet.FieldByName('Country').AsString = 'US') then
    Background := clWebPink;
end;


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EhLib Support Team
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csanesz
PostPosted: 01 Aug 2023, 05:12 
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Joined: 31 Jul 2023, 07:34
Posts: 7
Thanks for the answer, it was solved!

EhLibSupport wrote:
Hello


You can't highlight cells in dropdownbox by row position
but you can highlight by values of the current record.

Using OnDropDownBoxGetCellParams event
Like this:
Code:
procedure TfrEditControls.DBLookupComboboxEh3DropDownBoxGetCellParams(
  Sender: TObject; Column: TColumnEh; AFont: TFont; var Background: TColor;
  State: TGridDrawState);
begin
  if (DBLookupComboboxEh3.ListSource.DataSet.FieldByName('Country').AsString = 'US') then
    Background := clWebPink;
end;
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