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unissesion.synchronize doesn't work in grid's ColumnActionClick


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Hi ,

I have event on ColumnActionClick in grid to show window

in the onaftershow event of this window is executed this code which needs 10s to be finished  

procedure TShowURL.getDCL(sn:string);
var url,filename:string;
begin
  if (not sn.IsEmpty) then
    begin
    Caption:=sn;
    uniURL.ShowMask('Connecting ...');

    UniSession.Synchronize;
      if smartdata.esmartConnect then
      begin
        uniURL.ShowMask('Dowloading ...');
        UniSession.Synchronize;
        smartdata.checkDCL(sn);
        smartdata.getLastComm(sn);
        smartdata.AHTTPResponseStream.Position:=0;
        url := UniServerModule.LocalCacheURL+sn+'.html';
        filename := UniServerModule.NewCacheFileUrl(false, '.html', sn, '', url);
        smartdata.AHTTPResponseStream.SaveToFile(filename);
        uniURL.HideMask;
        UniURL.URL:=url;
      end;
    end;
end;

the window is shown but any mask isn't shown while procedure is executing.

the caption is not changed too.

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