Kendo UI Grid控件的功能强大,这里将常用的一些功能总结一下。
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:
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:
<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
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。
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。
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:
<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
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。
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:
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 } } } }本文来自博客园,作者:寻找无名的特质,转载请注明原文链接:https://www.cnblogs.com/zhenl/p/15920798.html