TextHint and Hint properties

WEB TMS WEB Core
1

I am having some issues. Maybe its my understanding.

I have a few TWebEdits with the html having a default placeholder.

I then use Delphi to change Hint and TextHint.

  • Hint changes the first time I set it - it reflects in the title attribute.
  • Hint doesnt change the second time I change it.
  • TextHint never updates the placeholder. The original html's placeholder is visible.

Fragment of the form below, I need to change the placeholder and title whenever the "radio buttons" is pressed.

02.09.2025_22.37.21_REC
02.09.2025_22.37.21_REC1021×518 11.8 KB

The code is

procedure TCoordinate_Validator.Set_Coordinate_Format
          (AFormat : TCoordinate_Format);
begin
  FFormat := AFormat;

  case FFormat of
    cf_DD :
    begin
      if Assigned(Fedt_Lat)
      then begin
           Fedt_Lat.TextHint := '40.445';
           Fedt_Lat.Hint     := 'DD.DDD format (e.g., 40.445)';
      end;
      if Assigned(Fedt_Lng)
      then begin
           Fedt_Lng.TextHint := '-74.010';
           Fedt_Lng.Hint     := 'DD.DDD format (e.g., -74.010)';
      end;
    end;

    cf_DDMM :
    begin
      if Assigned(Fedt_Lat)
      then begin
        Fedt_Lat.TextHint := '40 26.7';
        Fedt_Lat.Hint     := 'DD MM.M format (e.g., 40 26.7)';
      end;
      if Assigned(Fedt_Lng)
      then begin
        Fedt_Lng.TextHint := '-74 00.6';
        Fedt_Lng.Hint     := 'DD MM.M format (e.g., -74 00.6)';
      end;
    end;

    cf_DDMMSS:
    begin
      if Assigned(Fedt_Lat)
      then begin
           Fedt_Lat.TextHint := '40 26 42';
           Fedt_Lat.Hint     := 'DD MM SS format (e.g., 40 26 42)';
      end;
      if Assigned(Fedt_Lng)
      then begin
           Fedt_Lng.TextHint := '-74 00 36';
           Fedt_Lng.Hint     := 'DD MM SS format (e.g., -74 00 36)';
      end;
    end;
  end;

  Clear_Existing_States;
  Set_Format_Button_State(FFormat);
  
  // Re-validate existing content with new format
  if Assigned(Fedt_Lat) and (Trim(Fedt_Lat.Text) <> '')
  then Validate_Coordinate(Fedt_Lat, 'lat');
  if Assigned(Fedt_Lng) and (Trim(Fedt_Lng.Text) <> '')
  then Validate_Coordinate(Fedt_Lng, 'lng');
end;
2

I also have an issue with edt.Text. In the button click event, It always shows blank instead of what user has typed in.

3

Fixed everything except the Hint (title). That doesn't get updated, when changed.

Is it a browser issue or is TMS Webcore not updating it the 2nd time. if the latter, will updating the DOM directly fix it?

The issue was with my class code - Earlier I was creating all controls inside and setting the IDs. These IDs were different to what was in the html, this breaking the controls. I have removed that not-used code now.

4

I cannot see any problem.
WebEdit1 mapped onto a HTML element in the template via the ID and the code:

procedure TForm1.WebButton1Click(Sender: TObject);
begin
  webedit1.hint := 'in code';
end;

and this updates the hint on the INPUT element.

Please isolate & provide sufficient details to allow us to reproduce such issue.