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ui select choices
The ui-select-choices
is what the option
tag is to a html select element.
option | description | value |
---|---|---|
group-by |
Group by expression | expression |
ui-disable-choice |
Disable a choice in the menu | expression |
event name | description | example |
---|---|---|
on-highlight |
Occurs when an item was hovered on | on-highlight="showPreview(myValue)" |
In case that you need to disable certain options so that they can't be selected by the interface, you can use ui-disable-choice
attribute to pass an expression to check. For example:
<ui-select ng-model="model.people">
<ui-select-match>{{$select.selected.name}}</ui-select-match>
<ui-select-choices ui-disable-choice="value.status == 'inactive'" repeat="value.id as value in options | filter: $select.search">
<div ng-bind-html="value.name | highlight: $select.search"></div>
</ui-select-choices>
</ui-select>
On the ui-select-choices
define the group-by
property with a string or a function; example: group-by="someGroupFn"
or group-by="'countries'"
. A variable attribute is not valid here, e.g. group-by="myType"
.
The function usage might look something like:
$scope.someGroupFn = function (item){
if (item.name[0] >= 'A' && item.name[0] <= 'M')
return 'From A - M';
if (item.name[0] >= 'N' && item.name[0] <= 'Z')
return 'From N - Z';
};
The function is automatically invoked with the item you are iterating over. Its can be in the same group twice if the function matches them twice.
To sort the groups, the items must already be in order with each type in the proper index given their sort attribute.
If you have 2 groups that are represented in 2 different lists you must merge the lists in order to group them. For example: I have a list of cities and countries that are seperated by the list type. You would have to merge the 2 lists and then use the group by option to filter them.
$scope.displayValues = function() {
return cities.concat(countries);
}();
$scope.groupFind = function(item){
return cities.indexOf(item) > -1 : "City" : "Country";
};
<ui-select ng-model="animal.names">
<ui-select-match>{{$select.selected.name}}</ui-select-match>
<ui-select-choices group-by="groupFind" repeat="value.id as value in animals | filter: $select.search">
<div ng-bind-html="value.name | highlight: $select.search"></div>
</ui-select-choices>
</ui-select>
If you want some options to have groups and other not, return undefined
as the group in the callback and those will be inserted without a group. For example:
$scope.groupFind = function(item){
return cities.indexOf(item) > -1 : "City" : undefined;
};
In the repeat
of the ui-select-choices
identify the property you are wanting to bind to; repeat="item.id as item in cards">
.
Example usage:
<ui-select ng-model="card.id">
<ui-select-match>{{$select.selected.name}}</ui-select-match>
<ui-select-choices repeat="item.id as item in reports | filter: $select.search">
<div ng-bind-html="item.name | highlight: $select.search"></div>
</ui-select-choices>
</ui-select>
If you are using the ui-select-match
search feature, its important to realize that most examples do generic property matching on the object your iterating. So given an example like:
<ui-select ng-model="card.id">
<ui-select-match>{{$select.selected.name}}</ui-select-match>
<ui-select-choices repeat="item.id as item in users | filter: $select.search">
<div ng-bind-html="item.name | highlight: $select.search"></div>
</ui-select-choices>
</ui-select>
and the users
object looks like:
[{ name: 'Dan', description: 'Dan is a loser', id: 1234 }]
if you type 'loser' it will pull up 'Dan' but NOT highlight anything since we highlight the display the name. You can easily restrict the filter by adding a property name to the filter like:
<ui-select ng-model="card.id">
<ui-select-match>{{$select.selected.name}}</ui-select-match>
<ui-select-choices repeat="item.id as item in users | filter: { name: $select.search }">
<div ng-bind-html="item.name | highlight: $select.search"></div>
</ui-select-choices>
</ui-select>
The demo page has a good example for OR filters or check out the Angular Documentation for more info on filters.