javascript – Kendo TreeView搜索突出显示

我有一个带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.但是当我搜索它时的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.任何的想法 ？

jsFiddle code

$('#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"
            }]
        }]
    }]
})

;

解决方法:

如果你在HTML中捣乱,剑道的树视图小部件不喜欢它,所以我建议修改数据源(这将需要DS中所有项目的编码选项).

在keyup处理程序中,只要搜索清除突出显示,就重置DS,然后直接替换元素的HTML,设置模型的text属性：

$('#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));
        }
    });
});

树定义需要编码选项才能工作：

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)

标签：jquery,javascript,kendo-ui,kendo-treeview
来源： https://codeday.me/bug/20190703/1363325.html