TWebForm TJSPromise functions

WEB TMS WEB Core
1

Hi Bruno,

Just saw exciting updates on 1.7. One of new features: TJSPromise functions is very interesting. I tested using load() function to create a pop-up form and it works perfectly. Now I got a question, what should we do if we would like to create form using TJSPromise function that is hosted on say a panel? Here simply copy/paste your sample code to show a new form modally:

I guess we should somewhere set form container for the form (newform.FormContainer := WebPanel1.ElementID;), right? here I tried however it did not work properly. Any tip/suggestion would be great, thanks!

newform := TForm2.Create(Self);  
  newform.Caption := 'Child form';

// load file HTML template + controls  
  await(TForm2, newform.Load());  
  
  // init control after loading  
  newform.frm2Edit.Text := WebEdit1.Text;
2

Did you try to create the form as
newform := TForm2.Create('id');

with id the HTML element ID of the HTML element where you want to host the form?

3

Hi Bruno,
I am trying to alter the sample TMSWeb_FormHosting project (supplied in the demo source code) to use the await statement. In order to embed the subform, I used the HTML id in the create as suggested above.

procedure TFrmMain.NewButtonClick;
begin
// destroy possible old form
if Assigned(frm) then
frm.Close;

// frm := TSubForm1.Create(Self); // This line does not throw an error on the await

frm := TSubForm1.Create(HostPanel.ElementID);
await(TSubForm1, frm.Load()); // The await line throws an error

{ if Assigned(frm) and (frm is TSubForm1) then
( frm as TSubForm1 ).lbTexts.Items.Assign(lbTextsMain.Items);
}
btTransferGet.Enabled := true;
btTransferSet.Enabled := true;
end;

The error is:
Duplicate component name: "WebLabel1"

Please could you help.

4

Are you sure you effectively use the latest version v2.0.5.0?

5

Am using Tms Web Core 2.0.2.3. (Delphi 11.2) Will upgrade and try again.

Thank you

6

The latest version v2.0.5.0 also throws the error.

7

The Create() overload where you use the ID of a HTML internally already calls Load, so your code tries to load twice.

8

Thank you! I followed the code through and saw that. I was just following the advice of the earlier post.
I have reverted to the original code.