dax-lessons: Problem when creating a dynamic form with ActiveX control & Solution :)

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Источник: http://DAX-Lessons.spaces.live.com/B...FCD1!150.entry
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The Requirement was to connect to the weband get the content of the web page and display it on
the form .Well, I did not want to create aform in AOT to display the HTML content .So , I thought of dynamically creatinga form and adding the browser ActiveX Control using X++ code.
Here is the code which I pasted in the job.

 static void ActiveX_DynamicForm(Args _args)
{
    COMDispFunction         webpreviewWrite;
    COMVariant                  text = new COMVariant();
   COM                              ctrl = new COM();
   Form                               formBrowse;
   FormActivexControl    activex;
   FormRun                       formRun;
   Args                              args;
   int                                  handle;
   WinInet                        wi =new WinInet();
   str                                  htmlContent;
    ;
    handle= wi.internetOpenUrl('http://www.yahoo.com');
    if(handle)
    {
       htmlContent = wi.internetReadFile(handle);
    }
 
    wi.internetCloseHandle(handle);
   formBrowse = new Form('ActiveX AX Form', true);
   formBrowse.design().width(500);
   formBrowse.design().height(500);
   formBrowse.design().addControl(FormControlType::ActiveX, 'Browser');
    args =new Args(formBrowse.name());
    args.name(formBrowse.name());
   args.object(formBrowse);
   formRun = classFactory.formRunClass(args);
   formRun.init();
   activex = formRun.design().controlName('Browser');
   activex.className('{8856F961-340A-11D0-A96B-00C04FD705A2}');
    activex.height(1,1);
   activex.width(1,1);
   formRun.run();
   ctrl.attach(activex.interface());
   webpreviewWrite = new COMDispFunction(ctrl, 'write',COMDispContext::Method);
   text.bStr(htmlContent);
   activex.open("");
   webpreviewWrite.call(text);
    formRun.detach();
}

I was successful in creating the form butstrangely AX threw me an error when I ran the code. It was not supporting ‘write’ method for automatic interfaceof COM object of class “IWEBBrowser2’

I did not want to create a separate form addingan ActiveX control to achieve this.
I looked for alternatives and found one interestingclass which served my purpose.
Class Name: KMKnowledgeFunctionShow
Method : static Object show(TextBuffer htmlText, Object _formRun = null)
The show method will open the standard “KMKnowledgeAnalogMeter”form which has an ActiveX Control added to it.
I got the content of the webpage and added itto the TextBuffer by using settext() method and passed the TextBuffer to theshow method. I did not pass the second parameter formrun.
The idea behind this is to open the existingStandard form which has already Browser ActiveX in it.
Here is the code

 static void ActiveX_Alternate(Args _args)
{
   str         htmlContent;
   TextBuffer  txtBuffer;
   int         handle;
   WinInet     wi = new WinInet();
    ;
    handle= wi.internetOpenUrl('http://www.yahoo.com/');
    if(handle)
    {
        htmlContent = wi.internetReadFile(handle);
    }
   txtBuffer = new TextBuffer();
   txtBuffer.setText(htmlContent);
   KMKnowledgeFunctionShow::show(txtBuffer);
}

Drawback: The form caption stills remains the“KMKnowledgeAnalogMeter “form caption













Источник: http://DAX-Lessons.spaces.live.com/B...FCD1!150.entry