[Bug] ngx-bootstrap Typeahead

[aqkhana2002]

Version

4

Reproduction link

https://valor-software.com/ngx-bootstrap/#/typeahead

Operating System

MAC OS

Device

MAC OS

Browser & Version

CHROME UPDATED

Steps to reproduce

i am trying to use ngx-bootstrap with Material Dashboard (Angular). its seems to me ngx-bootstrap is showing dropdown but immediately disappear , if i remove "src/assets/scss/material-dashboard.scss" from angular.json its start working. as we do not have alternative in our Material Design so i have to use ngx-bootstrap Typeahead. any help appreciated.

What is expected?

i should able to see typeahead dropdown window

What is actually happening?

its immediately disappear.

---

Solution

Additional comments

[aqkhana2002]

ok in material-dashboard.scss file i disable "@import "core/dropdown";" it does solve my issue

[aqkhana2002]

ok i have fixed it by editing the _dropdown.scss inside assets folder

please replace existing with this

@use "sass:math";

// Menus https://www.google.com/design/spec/components/menus.html#menus-specs
// Dropdown buttons (mobile and desktop) https://www.google.com/design/spec/components/buttons.html#buttons-dropdown-buttons

.dropdown-menu {
display: none;
padding: $bmd-dropdown-margin-y 0;
padding-right: 10px;
border: 0;
opacity: 1;
transform: scale(0);
transform-origin: 0 0;
will-change: transform, opacity;
transition: transform $bmd-menu-expand-duration $bmd-animation-curve-default,
opacity $bmd-menu-fade-duration $bmd-animation-curve-default;
box-shadow: 0 2px 5px 0 rgba(0, 0, 0, 0.26);

&.showing {
animation-name: bmd-dropdown-animation;
animation-duration: $bmd-menu-expand-duration;
animation-fill-mode: forwards;
animation-timing-function: $bmd-animation-curve-default;
}

.open > &,
&.show {
display: block;
opacity: 1;
transform: scale(1);
}

&.hiding {
display: block;
opacity: 0;
transform: scale(0);
}

&[x-placement="bottom-start"] {
transform-origin: 0 0;
}

&[x-placement="bottom-end"] {
transform-origin: 100% 0;
}

&[x-placement="top-start"] {
transform-origin: 0 100%;
}

&[x-placement="top-end"] {
transform-origin: 100% 100%;
}

.disabled > a {
color: $bmd-dropdown-header-color;

&:focus,
&:hover {
  text-decoration: none;
  background-color: transparent;
  background-image: none;
  color: $bmd-dropdown-header-color;
}

}

&.dropdown-with-icons .dropdown-item {
padding: $dropdown-item-padding-y + 0.125 $dropdown-item-padding-x
$dropdown-item-padding-y + 0.125 $dropdown-item-padding-y + 0.125;

& .material-icons {
  vertical-align: middle;
  font-size: 24px;
  position: relative;
  margin-top: -4px;
  top: 1px;
  margin-right: 12px;
  opacity: 0.5;
}

}

// https://www.google.com/design/spec/components/menus.html#menus-specs
.dropdown-item,
li > a {
// used to properly size the ripple container
position: relative;
// width: auto;
display: flex;
flex-flow: nowrap;
align-items: center;
color: $bmd-dropdown-link-color;
font-weight: normal;
text-decoration: none;

font-size: 0.8125rem;
border-radius: math.div($border-radius, 2);
margin: 0 $bmd-dropdown-margin-y;
@include transitions($fast-transition-time, $transition-linear);

min-width: $bmd-menu-item-min-width;

padding: $dropdown-item-padding-y $dropdown-item-padding-x;

overflow: hidden;
line-height: $bmd-line-height;
text-overflow: ellipsis;
word-wrap: break-word;

@include media-breakpoint-up(md) {
  padding-right: $bmd-menu-item-padding-right-md;
  padding-left: $bmd-menu-item-padding-left-md;
}

}

.dropdown-item:hover,
.dropdown-item:focus,
a:hover,
a:focus,
a:active {
@include shadow-small-color($brand-primary);
background-color: $brand-primary;
color: #ffffff;
}
}

//end of dropdown--aqeel
// this could be in a .btn-group or .dropdown
.dropdown-toggle {
&.bmd-btn-icon,
&.bmd-btn-fab {
// remove the dropdown icon
&::after {
display: none;
}

~ .dropdown-menu {
  &.dropdown-menu-top-left,
  &.dropdown-menu-top-right {
    bottom: $bmd-btn-icon-size; // push up the bottom of the menu the height of the button
  }
}

}

&:after {
will-change: transform;
transition: transform $bmd-animation-dropdown-caret linear;
}

.show &:after {
@include rotate-180();
}

&.bmd-btn-fab-sm {
~ .dropdown-menu {
&.dropdown-menu-top-left,
&.dropdown-menu-top-right {
bottom: $bmd-btn-fab-size-sm; // push up the bottom of the menu the height of the button
}
}
}

&.bmd-btn-icon {
~ .dropdown-menu {
// collapse some spacing
margin: 0;
}
}
}

.dropdown-header {
font-size: 0.75rem;
padding-top: $dropdown-header-padding-y;
padding-bottom: $dropdown-header-padding-y;
text-transform: none;
color: $bmd-dropdown-header-color;
line-height: $bmd-line-height;
font-weight: inherit;
}

@Keyframes bmd-dropdown-animation {
from {
opacity: 0;
transform: scale(0);
}
to {
opacity: 1;
transform: scale(1);
}
}

.dropdown-menu.bootstrap-datetimepicker-widget {
opacity: 0;
transform: scale(0);
transition-duration: $bmd-menu-expand-duration;
transition-timing-function: $bmd-animation-curve-default;
transform-origin: 0 0;
will-change: transform, opacity;
top: 0;
}

.dropdown-menu.bootstrap-datetimepicker-widget.top {
transform-origin: 0 100%;
}

.dropdown-menu.bootstrap-datetimepicker-widget.open {
opacity: 1;
transform: scale(1);
top: 0;
}