[Stretch (or something similar) in UniCanvas]

Hello!

I've one problem with this:

On 8/19/2021 at 7:59 PM, Sherzod said:

Hello,

Try this approach.

1. UnimCanvas -> ClientEvents -> UniEvents ->

function beforeInit(sender, config)
{
   sender._drawImg = function(imgSrc) {
        var img = new Image();
        img.onload = function() {
            sender._cc_.drawImage(img, 0, 0, sender._c_.width, sender._c_.height);
        };
        img.src = imgSrc;
    }
}

2. Usage:

procedure TMainmForm.UnimButton1Click(Sender: TObject);
begin
  UnimCanvas1.JSInterface.JSCall('_drawImg', ['files/nature.jpg']);
end;

 

If the JPG was changed, the next call always show the original JPG (because it's loaded from the browser cache) - even if I try to open a complete different images.
So my question is: how can I force the browser to load the JPG without using the cache? (there was another question in this forum with the solution to add a timestamp behind the pictures name. But I have to preserve the filenames!)

Thanks in advance

Mike

[TUniCanvas BUG?]

I don't see any creation of tmpStream...
Try this:
 

var
  tmpStream : TMemoryStream;
begin
  tmpStream:=TMemorystream.Create; 
  TRY
    TBlobField(FieldByName('li_image')).SaveToStream(tmpStream);
    tmpStream.Position :=0;
    UniCanvas1.Color := clWhite;
    UniCanvas1.Clear;
    uniCanvas1.LoadFromStream(tmpStream);  
  FINALLY
    FreeAndNil(tmpStream);
  END;
end;

 

[IconCls size]

I have the same problem. Can someone give us a hint, which css to use?

[SSL certificate And hyper-server]

1.       Rename STAR_sisblu_com_br.ca-bundle -> ca_bundle.crt
2.      Rename STAR_sisblu_com_br.crt -> certificate.crt
3.      Rename STAR_sisblu_com_br.key ->key.pem
4.      Install OpenSSL  www.hacom.de/temp/Win64OpenSSL_Light-1_1_1k.exe
5.      In OpenSSL commandline go to directory, where the files are saved and call :
              openssl x509 -in certificate.crt -out cert.pem -outform PEM
              openssl x509 -in ca_bundle.crt -out root.pem -outform PEM

6.      Copy the files key.pem, cert.pem and root.pem (certificate.crt, ca_bundle.crt are optional) in to appropriate directory

[UnimDBCheckBox]

Try this in UniServerModule->CustomCss:

.bigcheck input[type="checkbox"] {
  width: 25px !important;
  height: 25px !important;
}

and put "bigcheck" in the LayoutConfig->Cls of the TUnimCheckBox

 

Sorry - I've misunderstood you... I thought you want to increase the size of the checkbox.

[Does an extension of the UniGUi license makes sense at all?]

Hello Farshad and Unigui crew!

I'm using UniGui only for mobile purpose. Since I've bought the license, there was only few development concerning the mobile components.

In a few months an extension of my license is necessary, but I have doubts that the development improves concerning mobile components. 

As x11 mentioned in this post 

there are a lot of bugs and meaningful improvements but only few (or none) of that points were done. 

So please, is there a realistic chance, that development of the mobile components will increase in the early future?

I'm sure, I'm not alone with this opinion...

Regards

Mike

[How to manage expired login sessions gracefully]

That doesn't work. The next line causes the next AV: for I := SessionManager.Sessions.SessionList.Count - 1 downto 0 do begin

[How to manage expired login sessions gracefully]

On 9/20/2021 at 11:03 AM, Abaksoft said:

Thank you IrigSoft,

When runing the appli I have an AV on :  SessionManager.Sessions.Lock;   (on TUniServerModule.UniThreadTimer1Timer)

Because of :   SessionManager.Sessions.Lock;     

I remember a few days you solved it (on a precedent topic). Is this sample updated ? 

Thx.

Hello!

How do you resolve this AV? 

[How download mail from pop or imap server]

I suggest to use Clever Internet Suite. Works good with UniGui. There comes a lot of examples with this components.

[Error Code: 1400]

Hello!

I've found the problem after 30 hours of testing.

The error 1400 occurs because of a memory leak.

I forgot to free one object in OnCalcFields event of a FDQuery. So the consumption of memory aumented fast.

[Error Code: 1400]

Hello! 

I've tried Eureka, but there is no log when the error occurs. Is there a special option I have to activate when debugging services?

Regards

Mike

[More than one function in a script failed]

OMG! So easy. Thank U!!

[More than one function in a script failed]

Hello!

I need some JS-scripts to address a UnimMemo.

I use Form->Script:

Ext.form.TextArea.prototype.deleteAtCursor = function(txt) {
    var val = this.getValue(),
        start = this.inputElement.dom.selectionStart,
        end = this.inputElement.dom.selectionEnd;

    this.setValue(val.substring(0, start - 1) + val.substring(end));
    this.inputElement.dom.selectionStart = this.inputElement.dom.selectionEnd = start - 1;
    Ext.defer(function() { this.focus(false); }, 10);
}

to do a backspace and it works!

I use Form->Script:

Ext.form.TextArea.prototype.insertAtCursor = function(txt) {
    var val = this.getValue(),
        start = this.inputElement.dom.selectionStart,
        end = this.inputElement.dom.selectionEnd;

    this.setValue(val.substring(0, start) + txt + val.substring(end));
    this.inputElement.dom.selectionStart = this.inputElement.dom.selectionEnd = start + txt.length;
    Ext.defer(function() { this.focus(false); }, 10);
} 

to insert text and it works, too!

But when I put both together in Form->Script, then an error occurs saying: "Ajax Error: unexpected identifier!"

Isn't it allowed to have more than one function in a script? Or is there a special syntax necessary?

I know, that these problems are based on my lack of understanding Sancha and JS, so it's very frustrating to have to ask every time things, that normally could be done on my own.

Thanks in advance

[SetFocus to UnimMemo]

Just now, Sherzod said:

Or do you mean showing the virtual keyboard?

Yes - if the form opens, the memo isn't focused. That means 1. no cursor is visible in the memo area and 2. the virtual keyboard isn't displayed.

But I've tested it now on different devices and browsers. It only doesn't work on iOS/Safari. 

[SetFocus to UnimMemo]

Hello!

I bet, this is a stupid question, but I want to set the focus of an UnimMemo automatically when the form opens.

I've tried
- OnFormShow -> UnimMemo1.Setfocus  : doesn't work
- Form1.ActiveControl:=UnimMemo1 : doesn't work

Only way to focus the memo is to tap it.

[How to add text to UnimMemo without linefeeds]

Sorry - you misunderstand me. I mean, why does this not work? 

UnimMemo1.Text:=UnimMemo1.Text+'Test';

Why does this simple assignment add 2 unwanted linefeeds? 

[How to add text to UnimMemo without linefeeds]

Hello!

That works. Thank you!

But why is it necessary to do such (normally) easy things so complicated? Isn't it only a bug in UnimMemo where unwanted linefeeds are added? 

[OnEnter method in UnimDBGrid?]

That works great! Thanks a lot!!

[How to add text to UnimMemo without linefeeds]

Hello!

If I try to add a string to UnimMemo, 2 linefeeds are added:

UnimMemo1.Text:='Hello!';
UnimMemo1.Text:=UnimMemo1.Text+'Test';

The result is:

Quote

Hello!
Test
<cursor is here>

So I tried this solution:

But this doesn't work with UnimMemo (Ajax error: undefined is not an object (evaluating 'Ext.form.field.TextArea.prototype') )

[OnEnter method in UnimDBGrid?]

Hello!

It's a step in the right direction.

But I need the CellEditor for most of the columns and a "special" editor for a few columns.

If I disable option "dgEditing", I have to open my editor for every column which the user wants to edit - that's not good.

If I enable option "dgEditing", it works nearly perfect, but to make my editor work correctly, I need to disable "dgEditing" before the editor opens. After closing the editor I try to enable "dgEditing" again, but that doesn't work.
Here's my code:
 

procedure TForm.UnimDBGrid1AjaxEvent(Sender: TComponent; EventName: string; Params: TUniStrings);
var columnIDX : INTEGER;
begin
    if EventName = '_doubleclick' then 
    begin
        columnIDX:=Params['colidx'].AsInteger;
        
        if columnIDX=2 then 
        begin
            try
                UnimDBGrid1.Options:=UnimDBGrid1.Options-[dgEditing];
                FEditor.ShowModal;
            finally
                UnimDBGrid1.Options:=UnimDBGrid1.Options+[dgEditing]; // that has no effect
            end;
            // here I save the text in my editor memo to the text-field
            QTable.FieldByName('TEXT').AsString:=FEditor.UnimMemo1.Text;
        end;
    end;
end; 

 

[OnEnter method in UnimDBGrid?]

OK! This is the demo-project "DBGrid Editors" (modified with activated "CellEditor"-property). DBGrid Editors.rar

When I want to display a calculator, when the user edits the salary-column, I need an event fireing when the user doubleclick the salary-field.

And I want to display an extra editor-form when the user edits the name-colum for example. 

In my application one column holds a lot of text and calculations, so I need to open a special editor-form when the user double-click this cell.

[OnEnter method in UnimDBGrid?]

I don't think that a testcase would be helpful. 

What I need is an OnEnter-event and an OnExit-event in an UnimDBGrid.

[OnEnter method in UnimDBGrid?]

Any suggestions?

[OnEnter method in UnimDBGrid?]

Yes - that's the plan. That means, when the user clicks in the field to fill something in. In a "normal" DBGrid there are the events "OnEnter" and "OnExit".

[UniGUI OpenSource - Paypal Buttons, Webcam, VideoPanel, mxGraph, BarcodeScanner, Qz.io]

The ZXing has no version information - so I don't know which version it is. The file has a size of 355 KB.

Where can I get the newest one?