KendoUIGrid使用总结

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优雅殿下
优雅殿下 2022-03-13 09:56:29
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Kendo UI Grid 使用总结

Kendo UI Grid控件的功能强大,这里将常用的一些功能总结一下。

Kendo UI Grid 固定列

在使用Gird控件显示数据时,如果数据列过多,会出现横向滚动条,很多情况下,我们希望某些列固定,这些列固定显示,不随滚动条发生变化。这时,可以在数据列上使用locked属性,比如,下面是使用mvvm定义grid的示例,编辑按钮被设置为固定列:

                <div id="fieldgrid"                      data-role="grid"                     data-sortable="true"                     data-height="580"                     data-toolbar="['create']"                     data-bind="source: fieldSource"                     data-editable='{"mode": "popup" }'                     data-columns='[                                  {"field":"Name","title":"字段名称",  "width": "120px"},                                  {"field":"Title","title":"字段说明",  "width": "120px"},                                  {"field":"DataType","title":"字段类型","values":dsDataType,  "width": "120px"},                                 {"field":"ControlType","title":"控件类型", "values":dsControlType,  "width": "120px"},                                 {"field":"DefaultValue","title":"缺省值",  "width": "120px"},                                 {"field":"Editable","title":"是否可编辑",  "width": "80px"},                                 {"field":"Visible","title":"是否可见",  "width": "80px"},                                 {"field":"DisplayOrder","title":"显示顺序", editor: numberEditor,  "width": "80px"},                                         {"field":"IsCascade","title":"是否级联",  "width": "80px"},                                         {"field":"CascadeSubField","title":"级联下级",  "width": "120px"},                                         {"field":"CascadeParentField","title":"级联上级",  "width": "120px"},                                     {"command": [ "edit", "destroy" ],  "width": "180px","locked":"true"}                                     ]'                     data-scrollable="true">

需要注意的是,1)固定列总是显示在最左边,2)带有固定列网格在初始化过程时,必须是可见的。如果网格在初始化时不可以见,会出现不可预知的问题。比如这种的场景,如果网格在分页中,初始化时是不可见的,那么,界面可能是这样的:

Grid控件创建自定义弹出编辑窗

Kendo UI Grid控件自带弹出窗编辑,只要在数据源中定义schema,就可以自动生成编辑界面,代码如下:

 <div  id="divForm">        <div id="divGrid">            <div id="mygrid"                  data-role="grid"                 data-sortable="true"                 data-toolbar="['create']"                 data-bind="source: dataSource"                 data-editable='{"mode": "popup" }'                 data-columns='[             {"field":"Id","title":"ID"},             {"field":"Name","title":"姓名"},             {"field":"Age","title":"年龄"},             {"field":"JoinDate","title":"入职日期","format": "{0:yyyy-MM-dd}"},             {"field":"Sex","title":"性别","template": "#if (Sex==1){# 女 #}else{# 男 #}# "},             {"field":"Married","title":"婚姻状况","template": "#if (Married){# 已婚 #}else{# 未婚 #}# "},             {"command": [ "edit", "destroy" ], "filterable": false, "sortable": false, "width:": "240px"}             ]'                 data-scrollable="false">            </div>        </div>    </div>    <script>              $(document).ready(function () {            var viewModel = kendo.observable({                dsSex: [{ value: 0, text: '男' }, { value: 1, text: '女' }],                dataSource: new kendo.data.DataSource(                    {                        data: [],                        schema: {                            model: {                                id: "Id",                                fields: {                                    Id: { editable: true, nullable: false },                                    Name: { validation: { required: true } },                                    Age: { type: "number" },                                    Sex: { editable: true },                                    JoinDate: { type: "date", editable: true },                                    Married: { type: "boolean", editable: true }                                }                            }                        }                    })                         });                       kendo.bind($("#divForm"), viewModel);        });    </script>

自动生成的编辑界面对于基本数据类型的字段够用了,但在实际中,会有更复杂的要求,比如,某些字段需要使用下拉框或者更复杂的控件,或者我们希望字段多列排列,这时,需要用到自定义的模板,上面的网格的自定义编辑模板如下:

 <script id="popup_editor" type="text/x-kendo-template">        <div >            <div >                 <label  for="Id">ID</label>                 <div >                    <input type='number' class='k-textbox' data-bind="value: Id" />                    <span  data-for="Id"></span>                </div>            <!--</div>            <div >-->                                <label  for="Name">姓名</label>                                               <div >                    <input type='text' name="Name" class='k-input k-textbox k-valid' data-bind="value: Name" required="required" />                    <span  data-for="Name"></span>                </div>            </div>            <div >                <label  for="Age">年龄</label>                <div >                    <input type='number'  data-role="numerictextbox" class='form-control' data-bind="value: Age" />                    <span  data-for="Age"></span>                </div>            </div>            <div >                <label  for="val_JoinDate">参加日期</label>                <div >                    <input data-role="datepicker" data-culture="zh-CN"  class='form-control' data-bind="value: JoinDate," />                    <span  data-for="JoinDate"></span>                </div>            </div>            <div >                <label  for="val_Married">已婚</label>                <div >                    <input type="checkbox"  data-bind="checked: Married," />                    <span  data-for="Married"></span>                </div>            </div>            <div >                             <label  for="val_Sex">性别</label>                <div >                    <select data-role="dropdownlist" class='form-control' data-text-field="text"                            data-value-field="value" data-bind="source:dsSex,value: Sex">                    </select>                    <span  data-for="Sex"></span>                </div>            </div>        </div>    </script>

模板使用script标记,类型为text/x-kendo-template,说明是kendo的模板。模板语言就是html,其中的data标记与kendo MVVM一致。模板中有几点需要注意:

  • 模板中需要验证的字段,需要定义name属性,如果不定义,验证信息无法显示
  • 需要定义 用于显示验证信息
  • 如果需要多列显示,需要在页面中定义自定义的样式:
<style>        .k-edit-form-container {            width: 700px;        }            .k-edit-form-container div {                box-sizing: border-box;            }            .k-edit-form-container label {                box-sizing: border-box;            }           </style>

需要将相关元素的box-sizing 设置为border-box

为Grid创建详细显示信息

KendoUI Grid支持在网格行中显示该行数据的详细信息,示例界面如下:

详细信息部分是在Grid控件的detailInit事件中创建的,如果采用mvvm方式定义,示例代码如下:

                       <div id="functiongrid"                              data-role="grid"                             data-sortable="true"                             data-toolbar="['create']"                             data-bind="source: functionSource, events: { dataBound: fn_dataBound }"                             data-editable='{"mode": "popup" }'                             data-detail-init="viewModel.functiongrid_detailInit"                             data-detail-template='functiongridsubtemp'                             data-columns='[                                 {"field":"FunctionName","title":"名称"},                                 {"field":"Desc","title":"说明"},                                 {"field":"ExecuteUrl","title":"地址"},                                 {"field":"ViewName","title":"函数类型名"},                                 {"command": [ "edit", "destroy" ], "filterable": false, "sortable": false, "width:": "240px"}                                 ]'                             data-scrollable="false"                             >                        </div>

上面的代码中,detailInit事件需要写为mvvm的方式,也就是需要用data开头,不同的单词中间用“-”分隔,全部为小写,这样,detailInit就需要写为data-detail-init。这个事件定义的函数在视图模型中,还有一个需要定义的属性是detailTemplate,用于定义显示模板,相关部分的代码如下:

        functiongrid_detailInit: function (e) {                    e.detailRow.find(".functionTab").kendoTabStrip(                        {                            animation: {                                open: {                                    effects: "fadeIn"                                }                            }                        }                    );                    if (!e.data.InParas) e.data.InParas = [];                    if (!e.data.OutParas) e.data.OutParas = [];                    if (!e.data.ExProps) e.data.ExProps = [];                    var dsIn = new kendo.data.DataSource({                        data: e.data.InParas,                        schema: {                            model: {                                id: "FieldName",                                fields: {                                    FieldName: { editable: true, validation: { required: true } },                                    ParaName: { editable: true, validation: { required: true } }                                }                            }                        }                    });                    e.detailRow.find(".inparagrid").kendoGrid({                        dataSource: dsIn,                        editable: "popup",                        toolbar: ['create'],                        columns: [{                            title: "字段名称",                            field: "FieldName"                        }, {                            title: "Api参数名",                                field: "ParaName"                        }, {                            command: ["edit", "destroy"]                        }                        ]                    });                    var dsOut = new kendo.data.DataSource({                        data: e.data.OutParas,                        schema: {                            model: {                                id: "FieldName",                                fields: {                                    FieldName: { editable: true, validation: { required: true } },                                    ParaName: { editable: true, validation: { required: true } }                                }                            }                        }                    });                    e.detailRow.find(".outparagrid").kendoGrid({                        dataSource: dsOut,                        editable: "popup",                        toolbar: ['create'],                        columns: [{                            title: "字段名称",                            field: "FieldName"                        }, {                            title: "Api参数名",                            field: "ParaName"                        }, {                            command: ["edit", "destroy"]                        }                        ]                    });                    var dsEx = new kendo.data.DataSource({                        data: e.data.ExProps,                        schema: {                            model: {                                id: "PropName",                                fields: {                                    PropName: { editable: true, validation: { required: true } },                                    PropValue: { editable: true, validation: { required: true } }                                }                            }                        }                    });                    e.detailRow.find(".expropgrid").kendoGrid({                        dataSource: dsEx,                        editable: "popup",                        toolbar: ['create'],                        columns: [{                            title: "属性名称",                            field: "PropName"                        }, {                            title: "属性值",                                field: "PropValue"                        }, {                            command: ["edit", "destroy"]                        }                        ]                    });                },

还要定义绑定函数如下:

                fn_dataBound: function (e) {                   e.sender.expandRow(e.sender.tbody.find("tr.k-master-row").first());                }

模板的定义如下:

    <script id="functiongridsubtemp" type="text/x-kendo-template">        <div >            <ul>                <li >输入参数</li>                <li>输出参数</li>                <li>附加属性</li>            </ul>            <div>                <div class='inparagrid'></div>            </div>            <div>                <div class='outparagrid'></div>            </div>            <div>                <div class='expropgrid'></div>            </div>        </div>            </script>

这个模板相对复杂,在一个分页控件中显示三个网格,用于显示函数的输入参数、输出参数和附加参数。需要注意的是,模板中不能用id进行标记,因为在页面中,每一行都需要使用模板创建一组元素,在模板中定义id,不能保证id唯一。因此在函数中,需要使用class来获取相关的元素。

Grid弹出编辑窗下拉框控件

如果在Grid弹出窗中有下拉框控件,可以使用values属性直接绑定到数组,在弹出编辑窗中自动生成下拉框,示例代码如下:

                       <div id="fieldgrid"                              data-role="grid"                             data-sortable="true"                             data-toolbar="['create']"                             data-bind="source: fieldSource"                             data-editable='{"mode": "popup" }'                             data-columns='[                                  {"field":"Name","title":"字段名称"},                                  {"field":"Title","title":"字段说明"},                                  {"field":"DataType","title":"字段类型","values":dsDataType},                                 {"field":"ControlType","title":"控件类型", "values":dsControlType},                                 {"field":"DefaultValue","title":"缺省值"},                                 {"field":"Editable","title":"是否可编辑"},                                 {"field":"Visible","title":"是否可见"},                                 {"field":"DisplayOrder","title":"显示顺序", editor: numberEditor},                                         {"field":"IsCascade","title":"是否级联"},                                         {"field":"CascadeSubField","title":"级联下级"},                                         {"field":"CascadeParentField","title":"级联上级"},                                     {"command": [ "edit", "destroy" ], "filterable": false, "sortable": false, "width:": "240px"}                                     ]'                             data-scrollable="false">

上面的代码使用了mvvm的定义模式,其中DataType和ControlType字段的values绑定到数组,数组定义示例如下:

var dsDataType = [    { value: 'number', text: '数值' },    { value: 'string', text: '字符串' },     { value: 'date', text: '日期' },      { value: 'boolean', text: '布尔' }];var dsControlType = [   { value: 'InputNumber', text: '数字输入' },   { value: 'InputText', text: '文本输入' },   { value: 'DatePicker', text: '日期输入' },   { value: 'Checkbox', text: '单选框' },   { value: 'Selection', text: '下拉框' },   { value: 'ComboBox', text: '级联下拉框' }        ];

数组定义时值字段名为value,显示字段名为text。在弹出编辑窗中,会自动创建为下拉框,显示结果如下:

使用这种方法,就不需要为下拉框定制显示控件了。

为Grid控件创建自定义弹出编辑窗

Kendo UI Grid控件自带弹出窗编辑,只要在数据源中定义schema,就可以自动生成编辑界面,代码如下:

 <div  id="divForm">        <div id="divGrid">            <div id="mygrid"                  data-role="grid"                 data-sortable="true"                 data-toolbar="['create']"                 data-bind="source: dataSource"                 data-editable='{"mode": "popup" }'                 data-columns='[             {"field":"Id","title":"ID"},             {"field":"Name","title":"姓名"},             {"field":"Age","title":"年龄"},             {"field":"JoinDate","title":"入职日期","format": "{0:yyyy-MM-dd}"},             {"field":"Sex","title":"性别","template": "#if (Sex==1){# 女 #}else{# 男 #}# "},             {"field":"Married","title":"婚姻状况","template": "#if (Married){# 已婚 #}else{# 未婚 #}# "},             {"command": [ "edit", "destroy" ], "filterable": false, "sortable": false, "width:": "240px"}             ]'                 data-scrollable="false">            </div>        </div>    </div>    <script>              $(document).ready(function () {            var viewModel = kendo.observable({                dsSex: [{ value: 0, text: '男' }, { value: 1, text: '女' }],                dataSource: new kendo.data.DataSource(                    {                        data: [],                        schema: {                            model: {                                id: "Id",                                fields: {                                    Id: { editable: true, nullable: false },                                    Name: { validation: { required: true } },                                    Age: { type: "number" },                                    Sex: { editable: true },                                    JoinDate: { type: "date", editable: true },                                    Married: { type: "boolean", editable: true }                                }                            }                        }                    })                         });                       kendo.bind($("#divForm"), viewModel);        });    </script>

自动生成的编辑界面对于基本数据类型的字段够用了,但在实际中,会有更复杂的要求,比如,某些字段需要使用下拉框或者更复杂的控件,或者我们希望字段多列排列,这时,需要用到自定义的模板,上面的网格的自定义编辑模板如下:

 <script id="popup_editor" type="text/x-kendo-template">        <div >            <div >                 <label  for="Id">ID</label>                 <div >                    <input type='number' class='k-textbox' data-bind="value: Id" />                    <span  data-for="Id"></span>                </div>            <!--</div>            <div >-->                                <label  for="Name">姓名</label>                                               <div >                    <input type='text' name="Name" class='k-input k-textbox k-valid' data-bind="value: Name" required="required" />                    <span  data-for="Name"></span>                </div>            </div>            <div >                <label  for="Age">年龄</label>                <div >                    <input type='number'  data-role="numerictextbox" class='form-control' data-bind="value: Age" />                    <span  data-for="Age"></span>                </div>            </div>            <div >                <label  for="val_JoinDate">参加日期</label>                <div >                    <input data-role="datepicker" data-culture="zh-CN"  class='form-control' data-bind="value: JoinDate," />                    <span  data-for="JoinDate"></span>                </div>            </div>            <div >                <label  for="val_Married">已婚</label>                <div >                    <input type="checkbox"  data-bind="checked: Married," />                    <span  data-for="Married"></span>                </div>            </div>            <div >                             <label  for="val_Sex">性别</label>                <div >                    <select data-role="dropdownlist" class='form-control' data-text-field="text"                            data-value-field="value" data-bind="source:dsSex,value: Sex">                    </select>                    <span  data-for="Sex"></span>                </div>            </div>        </div>    </script>

模板使用script标记,类型为text/x-kendo-template,说明是kendo的模板。模板语言就是html,其中的data标记与kendo MVVM一致。模板中有几点需要注意:

  • 模板中需要验证的字段,需要定义name属性,如果不定义,验证信息无法显示
  • 需要定义 用于显示验证信息
  • 如果需要多列显示,需要在页面中定义自定义的样式:
<style>        .k-edit-form-container {            width: 700px;        }            .k-edit-form-container div {                box-sizing: border-box;            }            .k-edit-form-container label {                box-sizing: border-box;            }           </style>

需要将相关元素的box-sizing 设置为border-box

Grid弹出编辑窗自定义编辑控件

上节介绍了创建自定义的弹出编辑窗体,这种方法的好处是可以完全控制编辑窗体中的各个控件,但也有些麻烦,如果只需要修改其中的几个控件,完全重写一个编辑窗体就显得没有必要了。这时,可以为单个编辑控件进行定制。示例代码如下:

<div id="commandgrid"                              data-role="grid"                             data-sortable="true"                             data-toolbar="['create']"                             data-bind="source: commandSource"                             data-editable='{"mode": "popup" }'                             data-columns='[                                 {"field":"Name","title":"名称"},                                 {"field":"Title","title":"文本"},                                 {"field":"FunctionName","title":"函数名称"},                                  {"field":"DisplayOrder","title":"显示顺序", editor: numberEditor},                                 {"command": [ "edit", "destroy" ], "filterable": false, "sortable": false, "width:": "240px"}                                 ]'                             data-scrollable="false">                        </div>

上面的代码使用了mvvm的定义方式,其中DisplayOrder字段使用了自定义的editor,numberEditor是一个自定义的函数,在这个函数里创建自定义的控件并添加到container中:

function numberEditor(container, options) {            $('<input name="' + options.field + '"/>')                .appendTo(container)                .kendoNumericTextBox({                    format:"n0"                });        }

这里定义了数字输入的格式,不显示小数。

根据条件改变行显示

在网格显示时,经常需要设置条件,根据网格中的数据,改变网格或者所在行的显示属性。比如如果数据超过某个限度,需要显示报警颜色。这些需求包括当满足一定条件时:

  • 整行背景颜色改变
  • 字体颜色改变
  • 字体加粗
  • 增加删除线
  • 当网格的第一列时复选框时,自动选中当前行
  • 当网格的第一列时复选框时,不允许选择

在Kendo Grid的dataBound事件中,可以实现上述功能。 示例代码如下:

dataBound: function (e) {                                                var rows = e.sender.tbody.children();                        for (var j = 0; j < rows.length; j++) {                            var row = $(rows[j]);                            var dataItem = e.sender.dataItem(row);                            var age = dataItem.get("AGE");                                                        var cells = row.children();                            if (age > 15) {                                                                for (var idx = 0; idx < cells.length; idx++) {                                    var mytd = cells[idx];                                    cells[idx].bgColor = "green"; //设置行背景颜色                                 }                                                            }                            if (age < 15) {                                for (var idx = 0; idx < cells.length; idx++) {                                    var mytd = cells[idx];                                    if (idx == 0) {                                        var chk = mytd.children[0];                                        $(chk).prop("checked", true); //设置选择框                                    }                                                                        $(mytd).css("font-weight", "bold"); //设置字体                                    $(mytd).css("color", "red");//设置字体颜色                                    $(mytd).css("text-decoration", "line-through");//加删除线                                    $(mytd).height(100);//设置行高                                }                            }                                                    }                    }
posted @ 2022-03-13 09:55 寻找无名的特质 阅读(0) 评论(0) 编辑 收藏 举报
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