我想在 AngularJS中使用 Bootstrap Multiselect Dropdown http://davidstutz.github.io/bootstrap-multiselect/ 。我听说有必要将其移至指令。但我认为这很复杂，不知道我必须做什么。如果你有经验，请指导我！谢了。
问问题
61118 次
3 回答
16
这是我在项目中使用的指令。它适用于 Chrome 和 Firefox。您可以根据自己的需要更改选项。
angular.module('yourApp')
.directive('yourDirective', function () {
return {
link: function (scope, element, attrs) {
element.multiselect({
buttonClass: 'btn',
buttonWidth: 'auto',
buttonContainer: '<div class="btn-group" />',
maxHeight: false,
buttonText: function(options) {
if (options.length == 0) {
return 'None selected <b class="caret"></b>';
}
else if (options.length > 3) {
return options.length + ' selected <b class="caret"></b>';
}
else {
var selected = '';
options.each(function() {
selected += $(this).text() + ', ';
});
return selected.substr(0, selected.length -2) + ' <b class="caret"></b>';
}
}
});
// Watch for any changes to the length of our select element
scope.$watch(function () {
return element[0].length;
}, function () {
element.multiselect('rebuild');
});
// Watch for any changes from outside the directive and refresh
scope.$watch(attrs.ngModel, function () {
element.multiselect('refresh');
});
}
};
});
更新适用于 AngularJS v1.3.15 和 bootstrap-multiselect v0.9.6 的指令的两个片段：JavaScript，CoffeeScript
于 2013-09-13T19:23:33.800 回答
14
如果您不需要创建非常可重用的代码，它实际上并没有那么复杂。第一步是创建一个基本指令并获取 DOM 元素：
angular.module('yourapp', [])
.directive('multiselectDropdown', [function() {
return function(scope, element, attributes) {
element = $(element[0]); // Get the element as a jQuery element
// Below setup the dropdown:
element.multiselect({
option1: 123,
option2: "abcd",
// etc.
})
// Below maybe some additional setup
}
}]);
基本上，一旦你在指令中，它实际上只是常规的 jQuery 或 JS 代码。
然后在您的 HTML 代码中：
<select multiselectDropdown >
<option value="1">One</option>
<option value="2">One</option>
<option value="3">One</option>
</select>
您还可以在 DIV 上指定其他属性并使用attributes指令的参数获取值。
于 2013-06-06T06:02:36.987 回答
0
这是我对 Ethan Wu 的回答的看法。我修复了几个错误并添加了元素上可覆盖的选项：<select multi-select includeSelectAllOption="true" enableFiltering="true" enableClickableOptGroups="true" enableCollapsibleOptGroups="true" multiple ng-model="vm.selectedPlants" ng-options="plant.name group by plant.operatingCompanyName for plant in vm.plants"></select>
// AngularJS: 1.5.8
// bootstrap-multiselect: 0.9.13
angular.module('SocoApp')
.directive('multiSelect', function () {
return {
link: function (scope, element, attrs: any) {
var options: any = {
onChange: function (optionElement, checked) {
if (optionElement != null) {
$(optionElement).removeProp('selected');
}
if (checked) {
$(optionElement).prop('selected', 'selected');
}
element.change();
}
};
//attrs are lowercased by Angular, but options must match casing of bootstrap-multiselect
if (attrs.enablehtml) options.enableHTML = JSON.parse(attrs.enablehtml); //default: false
if (attrs.buttonclass) options.buttonClass = attrs.buttonclass; //default: 'btn btn-default'
if (attrs.inheritclass) options.inheritClass = JSON.parse(attrs.inheritclass); //default: false
if (attrs.buttonwidth) options.buttonWidth = attrs.buttonwidth; //default: 'auto'
if (attrs.buttoncontainer) options.buttonContainer = attrs.buttoncontainer; //default: '<div class="btn-group" />'
if (attrs.dropright) options.dropRight = JSON.parse(attrs.dropright); //default: false
if (attrs.dropup) options.dropUp = JSON.parse(attrs.dropup); //default: false
if (attrs.selectedclass) options.selectedClass = attrs.selectedclass; //default: 'active'
if (attrs.maxheight) options.maxHeight = attrs.maxheight; //default: false, // Maximum height of the dropdown menu. If maximum height is exceeded a scrollbar will be displayed.
if (attrs.includeselectalloption) options.includeSelectAllOption = JSON.parse(attrs.includeselectalloption); //default: false
if (attrs.includeselectallifmorethan) options.includeSelectAllIfMoreThan = attrs.includeselectallifmorethan; //default: 0
if (attrs.selectalltext) options.selectAllText = attrs.selectalltext; //default: ' Select all'
if (attrs.selectallvalue) options.selectAllValue = attrs.selectallvalue; //default: 'multiselect-all'
if (attrs.selectallname) options.selectAllName = JSON.parse(attrs.selectallname); //default: false
if (attrs.selectallnumber) options.selectAllNumber = JSON.parse(attrs.selectallnumber); //default: true
if (attrs.selectalljustvisible) options.selectAllJustVisible = JSON.parse(attrs.selectalljustvisible); //default: true
if (attrs.enablefiltering) options.enableFiltering = JSON.parse(attrs.enablefiltering); //default: false
if (attrs.enablecaseinsensitivefiltering) options.enablecaseinsensitivefiltering = JSON.parse(attrs.enableCaseInsensitiveFiltering); //default: false
if (attrs.enablefullvaluefiltering) options.enableFullValueFiltering = JSON.parse(attrs.enablefullvaluefiltering); //default: false
if (attrs.enableclickableoptgroups) options.enableClickableOptGroups = JSON.parse(attrs.enableclickableoptgroups); //default: false
if (attrs.enablecollapsibleoptgroups) options.enableCollapsibleOptGroups = JSON.parse(attrs.enablecollapsibleoptgroups); //default: false
if (attrs.filterplaceholder) options.filterPlaceholder = attrs.filterplaceholder; //default: 'Search'
if (attrs.filterbehavior) options.filterBehavior = attrs.filterbehavior; //default: 'text', // possible options: 'text', 'value', 'both'
if (attrs.includefilterclearbtn) options.includeFilterClearBtn = JSON.parse(attrs.includefilterclearbtn); //default: true
if (attrs.preventinputchangeevent) options.preventInputChangeEvent = JSON.parse(attrs.preventinputchangeevent); //default: false
if (attrs.nonselectedtext) options.nonSelectedText = attrs.nonselectedtext; //default: 'None selected'
if (attrs.nselectedtext) options.nSelectedText = attrs.nselectedtext; //default: 'selected'
if (attrs.allselectedtext) options.allSelectedText = attrs.allselectedtext; //default: 'All selected'
if (attrs.numberdisplayed) options.numberDisplayed = attrs.numberdisplayed; //default: 3
if (attrs.disableifempty) options.disableIfEmpty = JSON.parse(attrs.disableifempty); //default: false
if (attrs.disabledtext) options.disabledText = attrs.disabledtext; //default: ''
if (attrs.delimitertext) options.delimiterText = attrs.delimitertext; //default: ', '
element.multiselect(options);
// Watch for any changes to the length of our select element
scope.$watch(function () {
//debugger;
return element[0].length;
}, function () {
scope.$applyAsync(element.multiselect('rebuild'));
});
// Watch for any changes from outside the directive and refresh
scope.$watch(attrs.ngModel, function () {
element.multiselect('refresh');
});
}
};
});
于 2016-10-27T15:58:16.507 回答