te')); return $arr; } /* 遍历用户所有主题 * @param $uid 用户ID * @param int $page 页数 * @param int $pagesize 每页记录条数 * @param bool $desc 排序方式 TRUE降序 FALSE升序 * @param string $key 返回的数组用那一列的值作为 key * @param array $col 查询哪些列 */ function thread_tid_find_by_uid($uid, $page = 1, $pagesize = 1000, $desc = TRUE, $key = 'tid', $col = array()) { if (empty($uid)) return array(); $orderby = TRUE == $desc ? -1 : 1; $arr = thread_tid__find($cond = array('uid' => $uid), array('tid' => $orderby), $page, $pagesize, $key, $col); return $arr; } // 遍历栏目下tid 支持数组 $fid = array(1,2,3) function thread_tid_find_by_fid($fid, $page = 1, $pagesize = 1000, $desc = TRUE) { if (empty($fid)) return array(); $orderby = TRUE == $desc ? -1 : 1; $arr = thread_tid__find($cond = array('fid' => $fid), array('tid' => $orderby), $page, $pagesize, 'tid', array('tid', 'verify_date')); return $arr; } function thread_tid_delete($tid) { if (empty($tid)) return FALSE; $r = thread_tid__delete(array('tid' => $tid)); return $r; } function thread_tid_count() { $n = thread_tid__count(); return $n; } // 统计用户主题数 大数量下严谨使用非主键统计 function thread_uid_count($uid) { $n = thread_tid__count(array('uid' => $uid)); return $n; } // 统计栏目主题数 大数量下严谨使用非主键统计 function thread_fid_count($fid) { $n = thread_tid__count(array('fid' => $fid)); return $n; } ?>javascript - Handling null value in kendo grid - Stack Overflow

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    javascript - Handling null value in kendo grid - Stack Overflow

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    I have a kendo grid in which one column can have null values. But I don't see the grid populating when there are null values. My code is here:

    $(document).ready(function() {
    $("#grid").kendoGrid({
        dataSource: gridData,
        columns: [{
            field: "name",
            title: "Name"
        }, {
            field: "result",
            title: "Result",
            template: "# if (result == null) { #" +
                "<span data-content=' '></span> } #" +
                "# } else { #" +
                "<span data-content=\"#: result#\"> </span>"
        }]
    });
});

    Can anyone help where I went wrong with this.

    I have a kendo grid in which one column can have null values. But I don't see the grid populating when there are null values. My code is here:

    $(document).ready(function() {
    $("#grid").kendoGrid({
        dataSource: gridData,
        columns: [{
            field: "name",
            title: "Name"
        }, {
            field: "result",
            title: "Result",
            template: "# if (result == null) { #" +
                "<span data-content=' '></span> } #" +
                "# } else { #" +
                "<span data-content=\"#: result#\"> </span>"
        }]
    });
});

    Can anyone help where I went wrong with this.

    • javascript
    • html
    • kendo-ui
    • kendo-grid
    Share Improve this question edited Jun 7, 2016 at 19:52 Sri asked Jun 7, 2016 at 19:45 SriSri 6132 gold badges7 silver badges20 bronze badges
    Add a ment  | 

    2 Answers 2

    Reset to default 10

    I'm not sure if you really need to set data-content yourself... if you just want to set an empty string instead of a null value, you can do it with a much simpler template:

    $(document).ready(function() {
    $("#grid").kendoGrid({
        dataSource: gridData,
        columns: [{
            field: "name",
            title: "Name"
        }, {
            field: "result",
            title: "Result",
            template: "#= (result == null) ? ' ' : result #"
        }]
    });
});

    To make it easier for control/readable you can do this

    $(document).ready(function() {
    $("#grid").kendoGrid({
        dataSource: gridData,
        columns: [{
            field: "name",
            title: "Name"
        }, {
            title: "Result",
            template: function (dataItem) {
                if (dataItem.result == null)
                    return 'Placeholder';
                else
                    return dataItem.result;
            }
        }]
    });
});

    Personally, don't like Kendo interpolation '#', it's hard to read when there is more logic in the template, which might lead to more interpolation '#'. Make code not readable caused the start point and the endpoint are both used '#'.

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