Kendo TreeView 搜索并突出显示

我有一个带有 spriteclass 的 KendoTreeview 。我想用我的搜索词突出显示节点（根节点和子节点）。我已经实现了搜索功能。但是当我搜索它时，问题是突出显示节点中的术语，但在第一次搜索后缺少节点中的 SpriteClass。任何想法 ？

jsFiddle代码 http://jsfiddle.net/IndyGuy/wmpy7c49/

$('#search-term').on('keyup', function () {
    $('span.k-in > span.highlight').each(function () {
        $(this).parent().text($(this).parent().text());
    });

    // ignore if no search term
    if ($.trim($(this).val()) == '') {
        return;
    }

    var term = this.value.toUpperCase();
    var tlen = term.length;

    $('#treeview-sprites span.k-in').each(function (index) {
        var text = $(this).text();
        var html = '';
        var q = 0;
        while ((p = text.toUpperCase().indexOf(term, q)) >= 0) {
            html += text.substring(q, p) + '<span class="highlight">' + text.substr(p, tlen) + '</span>';
            q = p + tlen;
        }

        if (q > 0) {
            html += text.substring(q);
            $(this).html(html);

            $(this).parentsUntil('.k-treeview').filter('.k-item').each(

            function (index, element) {
                $('#treeview-sprites').data('kendoTreeView').expand($(this));
                $(this).data('search-term', term);
            });
        }
    });

$("#treeview-sprites").kendoTreeView({
    dataSource: [{
        text: "My Documents",
        expanded: true,
        spriteCssClass: "rootfolder",
        items: [{
            text: "Kendo UI Project",
            expanded: true,
            spriteCssClass: "folder",
            items: [{
                text: "about.html",
                spriteCssClass: "html"
            }, {
                text: "index.html",
                spriteCssClass: "html"
            }, {
                text: "logo.png",
                spriteCssClass: "image"
            }]
        }, {
            text: "New Web Site",
            expanded: true,
            spriteCssClass: "folder",
            items: [{
                text: "mockup.jpg",
                spriteCssClass: "image"
            }, {
                text: "Research.pdf",
                spriteCssClass: "pdf"
            }, ]
        }, {
            text: "Reports",
            expanded: true,
            spriteCssClass: "folder",
            items: [{
                text: "February.pdf",
                spriteCssClass: "pdf"
            }, {
                text: "March.pdf",
                spriteCssClass: "pdf"
            }, {
                text: "April.pdf",
                spriteCssClass: "pdf"
            }]
        }]
    }]
})

;

Kendo 的树视图小部件不喜欢在 HTML 中乱搞，所以我建议改为修改数据源（这将需要encodedDS 中所有项目的选项）。

在 keyup 处理程序中，每当您搜索以清除突出显示时都会重置 DS，然后设置模型的文本属性，而不是直接替换元素的 HTML：

$('#search-term').on('keyup', function () {
    var treeView = $("#treeview-sprites").getKendoTreeView();
    treeView.dataSource.data(pristine);

    // ignore if no search term
    if ($.trim($(this).val()) == '') {
        return;
    }

    var term = this.value.toUpperCase();
    var tlen = term.length;

    $('#treeview-sprites span.k-in').each(function (index) {
        var text = $(this).text();
        var html = '';
        var q = 0;
        while ((p = text.toUpperCase().indexOf(term, q)) >= 0) {
            html += text.substring(q, p) + '<span class="highlight">' + text.substr(p, tlen) + '</span>';
            q = p + tlen;
        }

        if (q > 0) {
            html += text.substring(q);

            var dataItem = treeView.dataItem($(this));
            dataItem.set("text", html);

            $(this).parentsUntil('.k-treeview').filter('.k-item').each(

            function (index, element) {
                $('#treeview-sprites').data('kendoTreeView').expand($(this));
                $(this).data('search-term', term);
            });
        }
    });

    $('#treeview-sprites .k-item').each(function () {
        if ($(this).data('search-term') != term) {
            $('#treeview-sprites').data('kendoTreeView').collapse($(this));
        }
    });
});

树的定义需要encoded使其工作的选项：

var pristine = [{
    encoded: false,
    text: "Kendo UI Project",
    expanded: true,
    spriteCssClass: "folder",
    items: [{
        encoded: false,
        text: "about.html",
        spriteCssClass: "html"
    }, {
        encoded: false,
        text: "index.html",
        spriteCssClass: "html"
    }, {
        encoded: false,
        text: "logo.png",
        spriteCssClass: "image"
    }]
}, {
    encoded: false,
    text: "New Web Site",
    expanded: true,
    spriteCssClass: "folder",
    items: [{
        encoded: false,
        text: "mockup.jpg",
        spriteCssClass: "image"
    }, {
        encoded: false,
        text: "Research.pdf",
        spriteCssClass: "pdf"
    }, ]
}, {
    encoded: false,
    text: "Reports",
    expanded: true,
    spriteCssClass: "folder",
    items: [{
        encoded: false,
        text: "February.pdf",
        spriteCssClass: "pdf"
    }, {
        encoded: false,
        text: "March.pdf",
        spriteCssClass: "pdf"
    }, {
        encoded: false,
        text: "April.pdf",
        spriteCssClass: "pdf"
    }]
}];

$("#treeview-sprites").kendoTreeView({
    dataSource: [{
        text: "My Documents",
        expanded: true,
        spriteCssClass: "rootfolder",
        items: pristine
    }]
});

(demo http://jsfiddle.net/wmpy7c49/2/)