Dynamics ax add a button

添加一个按钮，重写方法

Dialog                  dlg             = new Dialog();
DialogGroup             dlgGroup;
FormBuildGroupControl   buttonGroup;
FormBuildButtonControl  buttonControl;

dlgGroup        = dlg.addGroup('ButtonGroup');
buttonGroup     = dlg.formBuildDesign().control(dlgGroup.formBuildGroup().id());
buttonControl   = buttonGroup.addControl(FormControlType::Button, 'A Button');

buttonControl.registerOverrideMethod(methodStr(FormButtonControl, clicked), 
                                         methodStr(YourClass, yourClickedMethod), 
                                         this);

 //add a button
    //oKbutton = dialog.formBuildDesign().addControl(FormControlType::Button, "DynamicButtonControl");
    //oKbutton.text("OK");

https://cloudblogs.microsoft.com/dynamics365/no-audience/2015/06/07/using-x-to-add-a-control-at-runtime/