Objects in a window are cloned

[Radius-Service]

Hi all. I created form in a window, when I click on button, open this window, and again click on the button (I don't close this window) all objects in form are "cloning". I must check - if window object created, before I open window, but I don't know why!

function displayFormWindow()
{
    if(!MyWindow.isVisible())
    {
        resetMyForm();
        MyWindow.show();
    }
    else
    {
        MyWindow.toFront();
    }
}

This code construct don't work, as to me to make this?

[laurentParis]

for your handler button, use only

handler: function () {
  MyWindow.show()
} 

and add an event on your window

MyWindow.on('afterlayout', function () {
 resetMyForm();
}, this, {single: true}); 

[Radius-Service]

Hm...I have one more question. How to delete window with all objects. After deleted on button click open window with new objects. Just I try to do this, but window doesn't open

[Condor]

Closing a window will destroy all it's nested components (you didn't 'render' components did you?).