Kendo ui Multi Select使用值删除选定的元素 [英] Kendo ui Multi Select Remove Selected element using value

问题描述

我正在使用kendo ui多项选择

http://demos.kendoui.c​​om/web/multiselect/events.html

我有这个代码

var data =
        [
            { text: "Africa", value: "1" },
            { text: "Europe", value: "2" },
            { text: "Asia", value: "3" },
            { text: "North America", value: "4" },
            { text: "South America", value: "5" },
            { text: "Antarctica", value: "6" },
            { text: "Australia", value: "7" }
        ];

var multi = $("#select").kendoMultiSelect({
    dataTextField: "text",
    dataValueField: "value",
    dataSource: data
}).data("kendoMultiSelect");

现在我可以使用它添加值

multi.value(["5", "3"]);

现在我要从所选值中删除

有什么方法可以使用value或text

删除值

例如，如果我要删除5，那么是否有像multi.remove(["5"]);

这样的方法?

或其他任何删除方式?

解决方案

要以编程方式从MultiSelect中删除元素，可以使用:

// Elements to be removed
var subtract = ["1", "5"];
// Get copy of current selected elements
var values = multi.value().slice();
// Remove elements from subtract
values = $.grep(values, function(a) {
    return $.inArray(a, subtract) == -1;
});
// Clean filtering
multi.dataSource.filter({});
// Set new values
multi.value(values);

subtract是要删除的元素(在此示例中为"1"和"5").

提示:要添加，您可以使用:

// Elements to add
var add = ["4", "5"];
// Get copy of current selected elements
var values = multi.value().slice();
// Merge withe elements to add
var merge = $.merge(values, add);
// Clean filtering
multi.dataSource.filter({});
// Remove duplicates and set them back
multi.value($.unique(merge));

此处的运行示例: http://jsfiddle.net/OnaBai/9WfGA/

I am using kendo ui multiple select

http://demos.kendoui.com/web/multiselect/events.html

i have this code

var data =
        [
            { text: "Africa", value: "1" },
            { text: "Europe", value: "2" },
            { text: "Asia", value: "3" },
            { text: "North America", value: "4" },
            { text: "South America", value: "5" },
            { text: "Antarctica", value: "6" },
            { text: "Australia", value: "7" }
        ];

var multi = $("#select").kendoMultiSelect({
    dataTextField: "text",
    dataValueField: "value",
    dataSource: data
}).data("kendoMultiSelect");

now i can add the values using this

multi.value(["5", "3"]);

now i want to remove from the selected values

is there any way to remove the values using value or text

for example if i want to remove 5 then is there any method like multi.remove(["5"]);

or any other way to remove it???

解决方案

For removing element from a MultiSelect programmatically, you can use:

// Elements to be removed
var subtract = ["1", "5"];
// Get copy of current selected elements
var values = multi.value().slice();
// Remove elements from subtract
values = $.grep(values, function(a) {
    return $.inArray(a, subtract) == -1;
});
// Clean filtering
multi.dataSource.filter({});
// Set new values
multi.value(values);

Where subtract are the elements to be removed (in this example "1" and "5").

TIP: For adding, you can use:

// Elements to add
var add = ["4", "5"];
// Get copy of current selected elements
var values = multi.value().slice();
// Merge withe elements to add
var merge = $.merge(values, add);
// Clean filtering
multi.dataSource.filter({});
// Remove duplicates and set them back
multi.value($.unique(merge));

Running example in here : http://jsfiddle.net/OnaBai/9WfGA/

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