Question

我已将两个Angular-Material自动填充字段添加为shown here，并且它到目前为止运作良好。

自动填充代码：

HTML：

<form ng-submit="$event.preventDefault()">
    <md-autocomplete
    ng-disabled="ctrl.isDisabled"
    md-no-cache="ctrl.noCache"
    md-selected-item="ctrl.selectedItem"
    md-search-text-change="ctrl.searchTextChange(ctrl.searchText2)"
    md-search-text="ctrl.searchText2"
    md-selected-item-change="ctrl.selectedItemChange(item)"
    md-items="item in ctrl.querySearch(ctrl.searchText2)"
    md-item-text="item.display"
    md-min-length="1"
    md-floating-label="Destination"
    ng-model="destiFlight">
    <md-item-template>
        <span md-highlight-text="ctrl.searchText" md-highlight-flags="^i">{{item.display}}</span>
    </md-item-template>
    <md-not-found>
        No states matching "{{ctrl.searchText}}" were found.
    </md-not-found>
    </md-autocomplete>
</form>

JS：

.controller('someCtrl', someCtrl);
  function someCtrl($timeout, $q, $log) {
    var self = this;
    self.simulateQuery = false;
    self.isDisabled = false;
    // list of `state` value/display objects
    self.states = loadAll();
    self.querySearch = querySearch;
    self.selectedItemChange = selectedItemChange;
    self.searchTextChange = searchTextChange;
    self.newState = newState;
    function newState(state) {
        alert("Sorry! You'll need to create a Constituion for " + state + " first!");
    }
    // ******************************
    // Internal methods
    // ******************************
    /**
     * Search for states... use $timeout to simulate
     * remote dataservice call.
     */
    function querySearch(query) {
        var results = query ? self.states.filter(createFilterFor(query)) : self.states,
                deferred;
        if (self.simulateQuery) {
            deferred = $q.defer();
            $timeout(function () {
                deferred.resolve(results);
            }, Math.random() * 1000, false);
            return deferred.promise;
        } else {
            return results;
        }
    }
    function searchTextChange(text) {
        $log.info('Text changed to ' + text);
    }
    function selectedItemChange(item) {
        self.selectedItem3=item;
        $log.info('Item changed to ' + JSON.stringify(item));
    }
    /**
     * Build `states` list of key/value pairs
     */
    function loadAll() {
        var allStates = 'Alabama, Alaska, Arizona, Arkansas, California, Colorado, Connecticut, Delaware,\
                Florida, Georgia, Hawaii, Idaho, Illinois, Indiana, Iowa, Kansas, Kentucky, Louisiana,\
                Maine, Maryland, Massachusetts, Michigan, Minnesota, Mississippi, Missouri, Montana,\
                Nebraska, Nevada, New Hampshire, New Jersey, New Mexico, New York, North Carolina,\
                North Dakota, Ohio, Oklahoma, Oregon, Pennsylvania, Rhode Island, South Carolina,\
                South Dakota, Tennessee, Texas, Utah, Vermont, Virginia, Washington, West Virginia,\
                Wisconsin, Wyoming';
        return allStates.split(/, +/g).map(function (state) {
            return {
                value: state.toLowerCase(),
                display: state
            };
        });
    }
    /**
     * Create filter function for a query string
     */
    function createFilterFor(query) {
        var lowercaseQuery = angular.lowercase(query);
        return function filterFn(state) {
            return (state.value.indexOf(lowercaseQuery) === 0);
        };
    }
};

现在我在这两个字段下方添加了一个div：

<div class="someDiv">
    ....
</div>

如果从自动完成下拉列表中选择了值，我该如何显示div？

Answer 1

您应该使用存储所选值的模型进行自动完成：

自动完成：

<md-autocomplete
      md-selected-item="mySelectedItem"
      md-items="item in myList"
      md-item-text="item.name"
      md-min-length="0"
      placeholder="Select country">

而div：

<div class="someDiv" ng-show="mySelectedItem && mySelectedItem.length != 0">
     ....
</div>

如果选择了自动完成输入，则显示/隐藏Div

1 个答案: