form-control class added to dropdown toggle button

[ena1106]

In the original bs-select library I noticed that the form-control class is not applied to the generated dropdown toggle button. It is left in the outer div only.

<div class="btn-group bootstrap-select bs-select form-control">
    <button type="button" class="btn dropdown-toggle btn-default" data-toggle="dropdown" title="Select CFU" aria-expanded="false">

Using this library, if the form-control class is applied to the

element it is automatically applied also to the dropdown toggle button. I found the code for this here:

if(className === 'form-control') {
       dropdownToggle.addClass(className);
} 

Can you explain why?
In my project this causes me issues, since it overrides the background of the toggle button. But I guess you had a good reason for this choice.

[lordfriend]

form-control class will give the button width value 100% when you need use nyaBsSelect in an form-horizontal form.

https://github.com/twbs/bootstrap/blob/master/less/forms.less#L116

if you don't need the style of form-control, just don't use this class. it's not mandatory.

[ena1106]

I didn't explain myself well. I need the form-control class, but from what I can see it's ok to have it just in the parent element, that in my case is:
<ul class="form-control nya-bs-select" ...
If I comment out the lines that assign the class also to the button, all is working well anyway, since the width 100% is given to the button anyway from the css:

.nya-bs-select .dropdown-toggle {
    width: 100%;
    padding-right: 25px;
}

My only concern here is that the original library, with the bs-select class, is not assigning the form-control class to the button element too.
Sorry if I'm missing something.

[lordfriend]

I have investigated the whole project. Still can't figure out why I add this line of code. But I think you're right. The form-control class is not necessary for the dropdown toggle button. And remove this class won't break current example.

[ena1106]

Thank you!