ExtJS之 grid表格详解(很赞)

于 2012-11-02 08:49:27 发布
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分类专栏： js
本文详细介绍了 ExtJS 框架中的表格组件使用方法，包括数据展示、排序、编辑等功能实现，以及如何通过不同类型的列显示各种数据格式，并探讨了表格的选择模式、汇总功能和分组显示。

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简单表格

排序,显示某列,读取本地数据

image

//本地数据 
            var datas = [ 
            ['1', 'gao', 'man'], ['2', 'gao', 'man'], ['3', 'gao', 'man'] 
                    ]; 
            //创建面板 
            Ext.create('Ext.grid.Panel', { 
                title: 'easy grid', 
                width: 400, 
                height: 300, 
                renderTo: Ext.getBody(), 
                frame: true, 
                viewConfig: { 
                    forceFit: true, 
                    stripRows: true 
                }, 
                store: {//配置数据代理

                    fields: ['id', 'name', 'gender'], 
                    proxy: { 
                        type: 'memory', 
                        data: datas, 
                        reader: 'array'   //数据读取器为 数据读取

                    }, 
                    autoLoad: true    
                }, 
                columns: [{  //自定义列信息 
                    header: 'id', 
                    width: 30, 
                    dataIndex: 'id',  //绑定fields中得字段 
                    sortable: true 
                }, { 
                    header: 'name', 
                    width: 80, 
                    dataIndex: 'name', 
                    sortable: true 
                }, { 
                    header: 'gender', 
                    width: 80, 
                    dataIndex: 'gender', 
                    sortable: true 
                }

                        ]

            })

表格列:

行号,   bool行转成是否,日期格式化输出(date,top day), number数据类型格式化输出(change,volume),Action列(操作列)

image

代码;

  Ext.tip.QuickTipManager.init();

            Ext.create('Ext.data.Store', { 
                storeId: 'sampleStore', 
                fields: [{ 
                    name: 'framework', 
                    type: 'string' 
                }, { 
                    name: 'rocks', 
                    type: 'boolean' 
                }, { 
                    name: 'volume', 
                    type: 'number' 
                }, { 
                    name: 'topday', 
                    type: 'date' 
                }, { 
                    name: 'change', 
                    type: 'number' 
                }, { 
                    name: 'date', 
                    type: 'date' 
                }, { 
                    name: 'price', 
                    type: 'number' 
                }

                        ], 
                data: { 
                    'items': [{ 
                        "framework": "Ext JS 1", 
                        "rocks": true, 
                        "symbol": "goog", 
                        "date": '2011/04/22', 
                        "change": 0.8997, 
                        "volume": 3053782, 
                        "topday": '04/11/2010', 
                        "price": 1000.23

                    }, { 
                        "framework": "Ext JS 2", 
                        "rocks": true, 
                        "symbol": "goog", 
                        "date": '2011/04/22', 
                        "change": 0.8997, 
                        "volume": 3053782, 
                        "topday": '04/11/2010', 
                        "price": 1000.23

                    }, { 
                        "framework": "Ext JS 3", 
                        "rocks": true, 
                        "symbol": "goog", 
                        "date": '2011/04/22', 
                        "change": 0.8997, 
                        "volume": 3053782, 
                        "topday": '04/11/2010', 
                        "price": 1000.23

                    }] 
                }, 
                proxy: { 
                    type: 'memory', 
                    reader: { 
                        type: 'json', 
                        root: 'items' 
                    } 
                } 
            });

            Ext.create('Ext.grid.Panel', { 
                title: 'Boolean Column Demo', 
                store: Ext.data.StoreManager.lookup('sampleStore'), 
                columns: [ 
                    Ext.create('Ext.grid.RowNumberer', { text: '行号', width: 40 }), 
                { 
                    text: 'Framework', 
                    dataIndex: 'framework', 
                    width: 100 
                }, { 
                    xtype: 'booleancolumn', 
                    text: 'Rocks', 
                    trueText: '是', 
                    falseText: '否', 
                    dataIndex: 'rocks' 
                }, { 
                    text: 'Date', 
                    dataIndex: 'date', 
                    xtype: 'datecolumn', 
                    format: 'Y年m月d日' 
                }, { 
                    text: 'Change', 
                    dataIndex: 'change', 
                    xtype: 'numbercolumn', 
                    format: '0.000' 
                }, { 
                    text: 'Volume', 
                    dataIndex: 'volume', 
                    xtype: 'numbercolumn', 
                    format: '0,000' 
                }, { 
                    text: 'Top Day', 
                    dataIndex: 'topday', 
                    xtype: 'datecolumn', 
                    format: 'l' 
                }, { 
                    text: 'Current Price', 
                    dataIndex: 'price', 
                    renderer: Ext.util.Format.usMoney 
                }, { 
                    header: '操作', 
                    xtype: 'actioncolumn', //操作列 
                    width: 100, 
                    items: [{ 
                        icon: 'e.gif', // 编辑图片地址                       

                        tooltip: ‘编辑’,   //鼠标over显示的文字 使用此功能,必须 Ext.tip.QuickTipManager.init(); 
                        handler: function (grid, rowIndex, colIndex) { 
                            var rec = grid.getStore().getAt(rowIndex); 
                            alert("Edit " + rec.get('framework')); 
                        } 
                    }, { 
                        icon: 'd.gif', 
                        tooltip: 'Delete', 
                        handler: function (grid, rowIndex, 
                                                colIndex) { 
                            var rec = grid.getStore().getAt(rowIndex); 
                            alert("Terminate " + rec.get('framework')); 
                        } 
                    }]

                }, {

                } 
                        ], 
                height: 200, 
                width: 800, 
                renderTo: Ext.getBody() 
            });

下面这个图是 单击 操作(编辑,删除)按钮触发的回调函数的详细信息.

image

 

下面演示  自定义 渲染函数

效果:image

Ext.tip.QuickTipManager.init();

           function customFunction(value, metadata) { 
                if (value > 10) { 
                    metadata.style = 'color:red';

                } 
                return value;

            }

            Ext.create('Ext.data.Store', { 
                storeId: 'sampleStore', 
                fields: [ { 
                    name: 'custom', 
                    type: 'number' 
                }

                        ], 
                data: { 
                    'items': [{ 
                        
                        "custom": 10

                    }, { 
                        
                        "custom": 100

                    }, { 
                       
                        "custom": 1000

                    }] 
                }, 
                proxy: { 
                    type: 'memory', 
                    reader: { 
                        type: 'json', 
                        root: 'items' 
                    } 
                } 
            });

            Ext.create('Ext.grid.Panel', { 
                title: 'Boolean Column Demo', 
                store: Ext.data.StoreManager.lookup('sampleStore'), 
                columns: [ 
                    Ext.create('Ext.grid.RowNumberer', { text: '行号', width: 40 }), 
                 { 
                    text: 'custom', 
                    dataIndex: 'custom', 
                    renderer: customFunction //调用自定义函数 来渲染 
                } 
                        ], 
                height: 200, 
                width: 800, 
                renderTo: Ext.getBody() 
            });

 

 

选择模式:Selection

选择模式分为三类:

1,行选择(默认)

2.单元格选择

3.复选框选择(checkbox组)

演示单元格选择代码:

image

只需在上述代码配置节当中,加入

tbar: [ 
                { 
                    text: '取得所选单元格', 
                    handler: function () {

                        var cell = grid.getSelectionModel().getCurrentPosition();  //getSelectionModel()获取当前选择模式,getCurrentPosition()获取当前选择的单元格 
                        alert(Ext.JSON.encode(cell)); 
                    } 
                } 
                ], 
selType:'cellmodel'     //设置 选择模式 为   单元格选择

 

行选择:

效果:image

tbar: [ 
                { 
                    text: '取得所选行', 
                    handler: function () {

                        var rows = grid.getSelectionModel().getSelection(); //getSelection();获取当前选中的记录数组 
                        var msg = []; 
                        for (var i = 0; i < rows.length; i++) {

                            var row = rows[i]; 
                            var myDate = new Date(row.get('date'));  
                            msg.push('选中行的Date列:' + myDate.toLocaleString()); //转换时间格式

                        } 
                        alert(msg.join('\n'));

                    } 
                } 
                ], 
                selType: 'rowmodel',  //选择模式为 行选择 
                simpleSelect: true,    //简单选择功能开启 
                multiSelect: true,       // 启用多行选择 
                enableKeyNav: true     //启用键盘导航 

 

复选框选择:

效果:image

tbar: [ 
               { 
                   text: '取得所选行', 
                   handler: function () {

                       var rows = grid.getSelectionModel().getSelection(); //getSelection();获取当前选中的记录数组 
                       var msg = []; 
                       for (var i = 0; i < rows.length; i++) {

                           var row = rows[i]; 
                           var myDate = new Date(row.get('date'));

                           var s = grid.getStore();            //获取grid的数据源 
                           var number = s.indexOf(row) + 1;       //获取行号+1  因为行号从0开始

                           msg.push('选中第' + number + '行的Date列:' + myDate.toLocaleString());

                       } 
                       alert(msg.join('\n'));

                   } 
               } 
               ], 
               selType: 'checkboxmodel',  //选择模式为 行选择 
               simpleSelect: true,    //简单选择功能开启 
               multiSelect: true,       // 启用多行选择 
               enableKeyNav: true     //启用键盘导航

表格特性: Feature

表格汇总 Ext.grid.feature.Summary

image

汇总值计算 根据表格的每一列进行计算,计算方式 有指定的 summaryType决定.默认的有

上图5种.

此例应用 sum和average

image

Ext.define('TestResult', { 
                extend: 'Ext.data.Model', 
                fields: ['student', { 
                    name: 'mark', 
                    type: 'int' 
                }] 
            });

            var grid = Ext.create('Ext.grid.Panel', { 
                width: 200, 
                height: 140, 
                renderTo: document.body, 
                features: [{ 
                    ftype: 'summary' 
                }], 
                store: { 
                    model: 'TestResult', 
                    data: [{ 
                        student: 'Student 1', 
                        mark: 84 
                    }, { 
                        student: 'Student 2', 
                        mark: 72 
                    }, { 
                        student: 'Student 3', 
                        mark: 96 
                    }, { 
                        student: 'Student 4', 
                        mark: 68 
                    }] 
                }, 
                columns: [{ 
                    dataIndex: 'student', 
                    text: 'Name', 
                    summaryType: 'count',  //进行汇总的列名 
                    summaryRenderer: function (value) { 
                        grid.getStore() 
                        return Ext.String.format('{0} student{1}', value, value !== 1 ? 's' : ''); 
                    } 
                }, { 
                    dataIndex: 'mark', 
                    text: 'Mark', 
                    summaryType: 'average' 
                }] 
            }) 
            var grid = Ext.create('Ext.grid.Panel', { 
                width: 200, 
                height: 140, 
                renderTo: document.body, 
                features: [{ 
                    ftype: 'summary' 
                }], 
                store: { 
                    model: 'TestResult', 
                    data: [{ 
                        student: 'Student 1', 
                        mark: 84 
                    }, { 
                        student: 'Student 2', 
                        mark: 72 
                    }, { 
                        student: 'Student 3', 
                        mark: 96 
                    }, { 
                        student: 'Student 4', 
                        mark: 68 
                    }] 
                }, 
                columns: [{ 
                    dataIndex: 'student', 
                    text: 'Name', 
                    summaryType: 'count',  //进行汇总的列名 
                    summaryRenderer: function (value) { 
                      //  grid.getStore() 
                        return Ext.String.format('{0} student{1}', value, value !== 1 ? 's' : ''); 
                    } 
                }, { 
                    dataIndex: 'mark', 
                    text: 'Mark', 
                    summaryType: 'average',

, 
                    summaryRenderer: function (value) { 
                        // grid.getStore() 
                        return Ext.String.format(' 平均分为:{0}', value);


                }] 
            })

 

表格分组:Ext.grid.feature.Grouping

image

代码:

Ext.define('TestResult', { 
              extend: 'Ext.data.Model', 
              fields: ['student', 'class', { 
                  name: 'mark', 
                  type: 'int' 
              }] 
          });

          var grid = Ext.create('Ext.grid.Panel', { 
              width: 400, 
              height: 300, 
              renderTo: document.body, 
              features: [ 
                 Ext.create('Ext.grid.feature.Grouping', 
              {

                  groupByText: '用本字段分组', 
                  showGroupsText: '显示分组', 
                  groupHeaderTpl: '班级: {name} ({rows.length})',   //分组显示的模板 
                  startCollapsed: true  //设置初始分组是不是收起 
              }) 
              ], 
              store: { 
                  model: 'TestResult', 
                  groupField: 'class', 
                  data: [{ 
                      student: 'Student 1', 
                      class: '1', 
                      mark: 84 
                  }, { 
                      student: 'Student 2', 
                      class: '1', 
                      mark: 72 
                  }, { 
                      student: 'Student 3', 
                      class: '2', 
                      mark: 96 
                  }, { 
                      student: 'Student 4', 
                      class: '2', 
                      mark: 68 
                  }] 
              }, 
              columns: [{ 
                  dataIndex: 'student', 
                  text: 'Name', 
                  summaryType: 'count',  //进行汇总的列名 
                  summaryRenderer: function (value) { 
                      grid.getStore() 
                      return Ext.String.format('{0} student{1}', value, value !== 1 ? 's' : ''); 
                  } 
              }, { 
                  dataIndex: 'mark', 
                  text: 'Mark', 
                  summaryType: 'average' 
              }, 
              { dataIndex: 'class', 
                  text: 'class'


              }] 
          }) 

//在不同的列下面点击 “用本字段分组”那么表格就会立即改变分组规则.

 

表格的分组汇总:Ext.grid.feature.GroupSummary

image

代码只需要把上面的image  Grouping 改成 GroupingSummary

 

表格插件: plugin

单元格编辑 Ext.grid.plugin.CellEditing

imageimageimage

代码:

var datas = [['gao', Date(1922, 02, 03), 2000]]; 
           Ext.create('Ext.grid.Panel', {

               title: '演示', 
               frame: true, 
               renderTo: Ext.getBody(), 
               width: 400, 
               height: 300,

               store: { 
                   fields: ['name', 'birth', 'salary'], 
                   data: datas, 
                   proxy: { 
                       type: 'memory', 
                       data: datas, 
                       reader: 'array' 
                   }, 
                   autoLoad: true 
               }, 
               plugins: [ 
                  Ext.create('Ext.grid.plugin.CellEditing', {

                      clicksToEdit: 1 
                  }) 
               ], 
               selType: 'cellmodel', 
               columns: [Ext.create('Ext.grid.RowNumberer', { text: '行号', width: 40 }), 
               { 
                   header: '姓名', 
                   width: 80, 
                   dataIndex: 'name', 
                   editor: {//定义字段 
                       xtype: 'textfield', 
                       allowBlank: false,

                   } 
               } 
               , 
                { 
                    header: '生日', 
                    width: 100, 
                    dataIndex: 'birth', 
                    xtype: 'datecolumn', 
                    editor: {//定义字段 
                        xtype: 'datefield', 
                        format: 'Y-m-d', 
                        allowBlank: false 
                    } 
                } 
                , 
                { 
                    header: '工资', 
                    width: 100, 
                    dataIndex: 'salary', xtype: 'numbercolumn', 
                    editor: {//定义字段 
                        xtype: 'numberfield', 
                        format: '$0,000', 
                        allowBlank: false 
                    } 
                } 
                ]


           })

表格 行编辑器Ext.grid.plugin.RowEditing

image

代码只需:image把 CellEditing 改成 RowEditing

想要获取修改后的数据,ajax请求服务器,做出响应.

grid.on('edit', onEdit, this);  //添加编辑事件,获取数据 
          function onEdit(e) { 
              alert(e.record.get('name'));  //get()参数是字段名字. 
          } 

 


转自:http://www.cnblogs.com/Mr-Joe/archive/2012/02/28/2371884.html

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