Ext.js中自己扩展的EasyGrid
这里只写了一些核心的代码，具体如下：
Ext.ux.EasyGrid = Ext.extend(Ext.grid.GridPanel, { initComponent: function () { this.autoHeight = true, this.viewConfig = { forceFit: true }; this.createStore(); //创建Store this.createColumns; //创建列模型 this.createTbar(); //创建GridPanel头部的工具栏 this.createBbar(); //创建GridPanel尾部的状态栏 //父类的构造函数 Ext.ux.EasyGrid.superclass.initComponent.call(this); }, createStore: function () { //二维数组 //代理 var proxy = new Ext.data.HttpProxy({ url: this.url }); var reader = null; if (this.type == "array") { reader = new Ext.data.ArrayReader({ fields: this.fields }); } else { reader = new Ext.data.JsonReader({ root: "rows" },this.fields); } this.store = new Ext.data.Store({ proxy: proxy, reader: reader, autoLoad: true }); }, createColumns: function () { var cols = []; for (var i = 0; i < this.fields.length; i++) { var header = this.headers[i]; var f = this.fields[i]; cols.push({ header: header, dataIndex:f }); } this.colums = cols; }, createTbar: function () { //配置项为数组 添加 删除修改 this.tbar = new Ext.Toolbar([ { text: "添加", iconCls: "x-tbar-add", //指向当前的方法 ux.EasyGrid 指向不同的方法 careteRecord updateRecord removeRecord heandler: this.createRecord.createDelegate(this) }, { text:"修改", iconCls: "x-tbar-update", heandler:this.updateRecord.createDelegate(this) }, { text: "删除", iconCls: "x-tbar-del", heandler:this.removeRecord.createDelegate(this) } ]); }, createTbar: function () { //分页 this.bbar = new Ext.PagingToolbar({ store: this.store }); }, createRecord: function () { this.Action = "create"; //自定义属性，表明是添加操作 this.showWindows(); //窗体显示的方法 var form = this.getForm(); //得到窗体中的Form form.baseParams = { create:true } //根据json对象自动找表单内容 本身为空 把窗体还原 from.setValues(this.getEmptyRecord()) }, updateRecord:function(){ //行选择模型 var r = this.getSelectedRecord(); if (!r) { this.Action = "update"; this.showWindows(); //得到当前的Form(); var form = this.getForm(); form.baseParams = { create: false }; //把对象加载进去 form.loadRecord(r); } }, removeRecord: function () { var r = this.getSelectedRecord(); if (r) { this.Action = "delete"; Ext.Msg.confirm("OA智能办公系统", "您确认要删除此条记录吗？", function (btn) { if (btn == "yes") { try { this.getStore().remove(r); if (this.fnDelete) { this.fnDelete(this.store, r); } } catch (e) { } } }); } }, getSelectedRecord:function() { var sm = this.getSelectionModel(); if (sm.getCount() == 0) { Ext.Msg.alert("OA办公系统", "请选择一行"); return false; } else { return this.getSelections()[0]; } }, //得到空的函数 getEmptyRecord: function () { //空的json对象 var r = {}; for (var i = 0; i < this.fields.length; i++) { var f = this.fields[i]; //给对象产生属性 并赋值 为空 r[f] = ""; } return r; }, submitRecord: function () { //得到表单的对象 var form = this.getForm(); //得到表单域的值 var values = form.getFieldValues(); //如果为添加 if (form.baseParams.create) { //得到空的json var json = this.getEmptyRecord(); for (var name in values) { json[name] = values[name]; } var rec = new this.store.recordType(json); //回调函数 try { this.store.add(rec); if (this.fnCreate) { this.fnCreate(this.store, rec); } } catch (e) { } } else { //得到选择的行 var r = this.getSelectedRecord(); try { r.beginEdit(); for (var name in values) { r.set(name, values[name]); } r.endEdit(); r.commit(); if (this.fnUpdate) { this.fnUpdate(this.store, r); } } catch (e) { } } this.hideWindow(); }, //得到Panel中的方法 getForm: function () { //得到当前的表单对象 return this.getFormPanel().getForm(); }, getFormPanel: function () { if (!this.gridForm) { //不存在创建一个 this.gridForm = this.createForm(); //存在就直接返回 return this.gridForm; } }, //创建一个窗体的按钮 createForm:function(){ var items = []; for (var i = 0; i < this.headers.length; i++) { var header = this.headers[i]; var f = this.fields[i]; //构造json对象 item.push({ fieldLabel: header, name: f }); } //进行保存 var form = new Ext.form.FormPanel({ frame: true, defaultType: "textfield", buttonAlign: "center", labelAlign: "right", labelWidth: 70, items: items, buttons: [ { text: "提交", hendler: function () { //指向当前的对象 this.submitRecord.createDelegate(this); } }, { text: "重置", hendler: function () { form.getForm().reset(); } }] }); return form; }, showWindows: function () { this.getWindow().show(); }, hideWindow:function(){ this.getWindow().hide(); }, getWindow:function(){ if (!this.gridWindow) { this.gridWindow = this.createWindow(); } return this.gridWindow; }, createWindow: function () { var formPanel = this.getFormPanel(); var win = new Ext.Window({ title: "OA办公系统", width: eval("this.subFormConfig." + this.Action + ".width"), autoHeight: true, closeAction: "hide", modal: true, items: [formPanel] }); return win; } });
改进后的代码：
Ext.ux.EasyGrid = Ext.extend(Ext.grid.GridPanel, {
initComponent: function() {
//this.autoHeight = true;
//this.stripeRows = true;
this.id = "branchInfoGrid";
this.viewConfig = {
forceFit: true
};
this.Action = "read";
this.createStore();
this.createColumns();
this.createTbar();
this.createBbar();
Ext.ux.EasyGrid.superclass.initComponent.call(this);
},
createStore: function() {
var proxy = new Ext.data.HttpProxy({ url: this.url });
var reader = null;
if (this.type == "array") {
reader = new Ext.data.ArrayReader({
fields: this.fields
});
}
else {
reader = new Ext.data.JsonReader({
root: "rows"
}, this.fields);
}
this.store = new Ext.data.Store({
autoLoad: true,
proxy: proxy,
//proxy: new Ext.data.MemoryProxy(this.data),
reader: reader
});
},
createColumns: function() {
var cols = [];
for (var i = 0; i < this.fields.length; i++) {
var header = this.headers[i];
var f = this.fields[i];
cols.push({
header: header,
dataIndex: f
});
}
for (var j = 0; j < this.fields.length; j++) {
if (this.colhidden) { //检测并设置列隐藏
if (this.colhidden.indexOf(j) != -1) {
cols[j].hidden = true;
};
}
if (this.renderer) {//检测并设置列renderer
var index = this.renderer.ids.indexOf(j);
if (index != -1) {
cols[j].renderer = this.renderer.funcs[index];
}
}
}
this.columns = cols;
},
createTbar: function() {
this.tbar = new Ext.Toolbar([{
text: "添加",
iconCls: 'x-tbar-add',
handler: this.createRecord.createDelegate(this)
}, {
text: "修改",
iconCls: 'x-tbar-update',
handler: this.updateRecord.createDelegate(this)
}, {
text: "删除",
iconCls: 'x-tbar-del',
handler: this.removeRecord.createDelegate(this)
}]);
},
createBbar: function() {
this.bbar = new Ext.PagingToolbar({
store: this.store
});
},
createRecord: function() {
this.Action = "create";
this.showWindow();
var form = this.getForm();
form.baseParams = {
create: true
};
form.setValues(this.getEmptyRecord());
},
updateRecord: function() {
var r = this.getSelectedRecord();
if (r != false) {
this.Action = "update";
this.showWindow();
var form = this.getForm();
form.baseParams = {
create: false
};
form.loadRecord(r);
if (this.fnWinModify) {
//var _form = win.getComponent("EasyGridForm");
this.fnWinModify(form, r);
}
}
},
removeRecord: function() {
var r = this.getSelectedRecord();
if (r != false) {
this.Action = "delete";
Ext.Msg.confirm('OA智能办公系统', '你确定要删除吗?', function(btn) {
if (btn == 'yes') {
try {
if (this.fnDelete) {
this.fnDelete(this.store, r);
}
} catch (ex)
{ }
}
}, this);
}
},
getSelectedRecord: function() {
var sm = this.getSelectionModel();
if (sm.getCount() == 0) {
Ext.Msg.alert('OA智能办公系统', '请选择一行!');
return false;
} else {
return sm.getSelections()[0];
}
},
getEmptyRecord: function() {
var r = {};
for (var i = 0; i < this.fields.length; i++) {
var f = this.fields[i];
r[f] = '';
}
return r;
},
submitRecord: function() {
var form = this.getForm();
var values = form.getFieldValues();
if (form.baseParams.create) {
// var data = [];
// for (var name in values) {
// data.push(values[name]);
// }
// this.store.loadData([data], true);
var json = this.getEmptyRecord();
for (var name in values) {
json[name] = values[name];
}
var rec = new this.store.recordType(json);
try {
if (this.fnCreate) {
this.fnCreate(this.store,form, rec);
}
} catch (ex) {
}
} else {
var r = this.getSelectedRecord();
try {
if (this.fnUpdate) {
this.fnUpdate(form, r,values);
}
} catch (ex)
{ }
}
this.hideWindow();
},
getForm: function() {
return this.getFormPanel().getForm();
},
getFormPanel: function() {
if (!this.gridForm) {
this.gridForm = this.createForm();
}
return this.gridForm;
},
createForm: function() {
var items = [];
for (var i = 0; i < this.headers.length; i++) {
var header = this.headers[i];
var f = this.fields[i];
items.push({
fieldLabel: header,
name: f
});
}
//add by fwy
for (var j = 0; j < this.fields.length; j++) {
if (this.colhidden) { //检测并设置列隐藏
if (this.colhidden.indexOf(j) != -1) {
items[j].hidden = true;
items[j].hideLabel = true;
};
}
if (this.subFormConfig.create.items) {//检测并设置列替换
var index = this.subFormConfig.create.items.ids.indexOf(j);
if (index != -1) {
items[j] = this.subFormConfig.create.items.fields[index];
}
}
}
var form = new Ext.form.FormPanel({
frame: true,
id: "EasyGridForm",
defaultType: 'textfield',
buttonAlign: 'center',
labelAlign: 'right',
labelWidth: 130,
trackResetOnLoad: true,
style: "text-align:center",
defaults: { width: 150 },
reader: new Ext.data.ArrayReader({
fields: this.fields
}),
items: items,
buttons: [{
text: '提交',
handler: this.submitRecord.createDelegate(this)
}, {
text: '重置',
handler: function() {
form.getForm().reset();
}
}]
});
return form;
},
showWindow: function() {
this.getWindow().show();
},
hideWindow: function() {
this.getWindow().hide();
},
getWindow: function() {
if (!this.gridWindow) {
this.gridWindow = this.createWindow();
}
var title = eval("this.subFormConfig." + this.Action + ".title");
this.gridWindow.setTitle(title);
return this.gridWindow;
},
createWindow: function() {
var formPanel = this.getFormPanel();
var win = new Ext.Window({
title: 'OA智能办公系统',
width: eval("this.subFormConfig." + this.Action + ".width"),
autoHeight: true,
closeAction: 'hide',
modal: true,
items: [
formPanel
]
});
return win;
}
});
调用时的配置格式：
var branchInfoGrid = new Ext.ux.BranchInfoGrid({
title: 'EasyGrid',
width: 400,
url: "/Web/Manage/DeskTop/JSON/GetBranchInfo.aspx?act=read",
type: "json",
header: false,
headerAsText: false,
height: 400,
fnCreate: fnCreate,
fnUpdate: fnUpdate,
fnDelete: fnDelete,
fnWinModify: fnWinModify,
subFormConfig: { create: { width: 400, height: 300, title: "添加数据", items: { ids: [5], fields: [cbxLeader]} }, read: { width: 300, height: 200, title: "查看数据" }, update: { width: 400, height: 300, title: "修改数据"} },
fields: ['Id', 'BranchName', 'BranchAddr', 'BranchPhone', 'BranchUrl', 'BranchMaster'],
headers: ['ID', '机构名称', '住址', '联系电话', '网址', '负责人'],
colhidden: [0],
renderer: { ids: [5,1], funcs: [renderBranchMaster,renderBranchName] }
this.updatExt.ux.EasyGrid = Ext.extend(Ext.grid.GridPanel, { initComponent: function () { this.autoHeight = true, this.viewConfig = { forceFit: true }; this.createStore(); //创建Store this.createColumns; //创建列模型 this.createTbar(); //创建GridPanel头部的工具栏 this.createBbar(); //创建GridPanel尾部的状态栏 //父类的构造函数 Ext.ux.EasyGrid.superclass.initComponent.call(this); }, createStore: function () { //二维数组 //代理 var proxy = new Ext.data.HttpProxy({ url: this.url }); var reader = null; if (this.type == "array") { reader = new Ext.data.ArrayReader({ fields: this.fields }); } else { reader = new Ext.data.JsonReader({ root: "rows" },this.fields); } this.store = new Ext.data.Store({ proxy: proxy, reader: reader, autoLoad: true }); }, createColumns: function () { var cols = []; for (var i = 0; i < this.fields.length; i++) { var header = this.headers[i]; var f = this.fields[i]; cols.push({ header: header, dataIndex:f }); } this.colums = cols; }, createTbar: function () { //配置项为数组 添加 删除修改 this.tbar = new Ext.Toolbar([ { text: "添加", iconCls: "x-tbar-add", //指向当前的方法 ux.EasyGrid 指向不同的方法 careteRecord updateRecord removeRecord heandler: this.createRecord.createDelegate(this) }, { text:"修改", iconCls: "x-tbar-update", heandler:this.updateRecord.createDelegate(this) }, { text: "删除", iconCls: "x-tbar-del", heandler:this.removeRecord.createDelegate(this) } ]); }, createTbar: function () { //分页 this.bbar = new Ext.PagingToolbar({ store: this.store }); }, createRecord: function () { this.Action = "create"; //自定义属性，表明是添加操作 this.showWindows(); //窗体显示的方法 var form = this.getForm(); //得到窗体中的Form form.baseParams = { create:true } //根据json对象自动找表单内容 本身为空 把窗体还原 from.setValues(this.getEmptyRecord()) }, updateRecord:function(){ //行选择模型 var r = this.getSelectedRecord(); if (!r) { this.Action = "update"; this.showWindows(); //得到当前的Form(); var form = this.getForm(); form.baseParams = { create: false }; //把对象加载进去 form.loadRecord(r); } }, removeRecord: function () { var r = this.getSelectedRecord(); if (r) { this.Action = "delete"; Ext.Msg.confirm("OA智能办公系统", "您确认要删除此条记录吗？", function (btn) { if (btn == "yes") { try { this.getStore().remove(r); if (this.fnDelete) { this.fnDelete(this.store, r); } } catch (e) { } } }); } }, getSelectedRecord:function() { var sm = this.getSelectionModel(); if (sm.getCount() == 0) { Ext.Msg.alert("OA办公系统", "请选择一行"); return false; } else { return this.getSelections()[0]; } }, //得到空的函数 getEmptyRecord: function () { //空的json对象 var r = {}; for (var i = 0; i < this.fields.length; i++) { var f = this.fields[i]; //给对象产生属性 并赋值 为空 r[f] = ""; } return r; }, submitRecord: function () { //得到表单的对象 var form = this.getForm(); //得到表单域的值 var values = form.getFieldValues(); //如果为添加 if (form.baseParams.create) { //得到空的json var json = this.getEmptyRecord(); for (var name in values) { json[name] = values[name]; } var rec = new this.store.recordType(json); //回调函数 try { this.store.add(rec); if (this.fnCreate) { this.fnCreate(this.store, rec); } } catch (e) { } } else { //得到选择的行 var r = this.getSelectedRecord(); try { r.beginEdit(); for (var name in values) { r.set(name, values[name]); } r.endEdit(); r.commit(); if (this.fnUpdate) { this.fnUpdate(this.store, r); } } catch (e) { } } this.hideWindow(); }, //得到Panel中的方法 getForm: function () { //得到当前的表单对象 return this.getFormPanel().getForm(); }, getFormPanel: function () { if (!this.gridForm) { //不存在创建一个 this.gridForm = this.createForm(); //存在就直接返回 return this.gridForm; } }, //创建一个窗体的按钮 createForm:function(){ var items = []; for (var i = 0; i < this.headers.length; i++) { var header = this.headers[i]; var f = this.fields[i]; //构造json对象 item.push({ fieldLabel: header, name: f }); } //进行保存 var form = new Ext.form.FormPanel({ frame: true, defaultType: "textfield", buttonAlign: "center", labelAlign: "right", labelWidth: 70, items: items, buttons: [ { text: "提交", hendler: function () { //指向当前的对象 this.submitRecord.createDelegate(this); } }, { text: "重置", hendler: function () { form.getForm().reset(); } }] }); return form; }, showWindows: function () { this.getWindow().show(); }, hideWindow:function(){ this.getWindow().hide(); }, getWindow:function(){ if (!this.gridWindow) { this.gridWindow = this.createWindow(); } return this.gridWindow; }, createWindow: function () { var formPanel = this.getFormPanel(); var win = new Ext.Window({ title: "OA办公系统", width: eval("this.subFormConfig." + this.Action + ".width"), autoHeight: true, closeAction: "hide", modal: true, items: [formPanel] }); return win; } });ecord.createDelegate(this)
}, {
text: "删除",
iconCls: "x-tbar-del",
heandler:this.removeRecord.createDelegate(this)
}
]);
},
createTbar: function () {
//分页
this.bbar = new Ext.PagingToolbar({ store: this.store });
},
createRecord: function () {
this.Action = "create"; //自定义属性，表明是添加操作
this.showWindows(); //窗体显示的方法
var form = this.getForm(); //得到窗体中的Form
form.baseParams = {
create:true
}
//根据json对象自动找表单内容 本身为空 把窗体还原
from.setValues(this.getEmptyRecord())
},
updateRecord:function(){
//行选择模型
var r = this.getSelectedRecord();
if (!r) {
this.Action = "update";
this.showWindows();
//得到当前的Form();
var form = this.getForm();
form.baseParams = {
create: false
};
//把对象加载进去
form.loadRecord(r);
}
},
removeRecord: function () {
var r = this.getSelectedRecord();
if (r) {
this.Action = "delete";
Ext.Msg.confirm("OA智能办公系统", "您确认要删除此条记录吗？", function (btn) {
if (btn == "yes") {
try {
this.getStore().remove(r);
if (this.fnDelete) {
this.fnDelete(this.store, r);
}
} catch (e) {
}
}
});
}
},
getSelectedRecord:function() {
var sm = this.getSelectionModel();
if (sm.getCount() == 0) {
Ext.Msg.alert("OA办公系统", "请选择一行");
return false;
} else {
return this.getSelections()[0];
}
},
//得到空的函数
getEmptyRecord: function () {
//空的json对象
var r = {};
for (var i = 0; i < this.fields.length; i++) {
var f = this.fields[i];
//给对象产生属性 并赋值 为空
r[f] = "";
}
return r;
},
submitRecord: function () {
//得到表单的对象
var form = this.getForm();
//得到表单域的值
var values = form.getFieldValues();
//如果为添加
if (form.baseParams.create) {
//得到空的json
var json = this.getEmptyRecord();
for (var name in values) {
json[name] = values[name];
}
var rec = new this.store.recordType(json);
//回调函数
try {
this.store.add(rec);
if (this.fnCreate)
{
this.fnCreate(this.store, rec);
}
} catch (e) {
}
} else {
//得到选择的行
var r = this.getSelectedRecord();
try {
r.beginEdit();
for (var name in values) {
r.set(name, values[name]);
}
r.endEdit();
r.commit();
if (this.fnUpdate) {
this.fnUpdate(this.store, r);
}
} catch (e) {
}
}
this.hideWindow();
},
//得到Panel中的方法
getForm: function () {
//得到当前的表单对象
return this.getFormPanel().getForm();
},
getFormPanel: function () {
if (!this.gridForm) {
//不存在创建一个
this.gridForm = this.createForm();
//存在就直接返回
return this.gridForm;
}
},
//创建一个窗体的按钮
createForm:function(){
var items = [];
for (var i = 0; i < this.headers.length; i++) {
var header = this.headers[i];
var f = this.fields[i];
//构造json对象
item.push({
fieldLabel: header,
name: f
});
}
//进行保存
var form = new Ext.form.FormPanel({
frame: true,
defaultType: "textfield",
buttonAlign: "center",
labelAlign: "right",
labelWidth: 70,
items: items,
buttons: [
{
text: "提交",
hendler: function () {
//指向当前的对象
this.submitRecord.createDelegate(this);
}
}, {
text: "重置",
hendler: function () {
form.getForm().reset();
}
}]
});
return form;
},
showWindows: function () {
this.getWindow().show();
},
hideWindow:function(){
this.getWindow().hide();
},
getWindow:function(){
if (!this.gridWindow) {
this.gridWindow = this.createWindow();
}
return this.gridWindow;
},
createWindow: function () {
var formPanel = this.getFormPanel();
var win = new Ext.Window({
title: "OA办公系统",
width: eval("this.subFormConfig." + this.Action + ".width"),
autoHeight: true,
closeAction: "hide",
modal: true,
items: [formPanel]
});
return win;
}
});
var i = 0; i < this.fields.length; i++) { var f = this.fields[i]; //给对象产生属性 并赋值 为空 r[f] = ""; } return r; }, submitRecord: function () { //得到表单的对象 var form = this.getForm(); //得到表单域的值 var values = form.getFieldValues(); //如果为添加 if (form.baseParams.create) { //得到空的json var json = this.getEmptyRecord(); for (var name in values) { json[name] = values[name]; } var rec = new this.store.recordType(json); //回调函数 try { this.store.add(rec); if (this.fnCreate) { this.fnCreate(this.store, rec); } } catch (e) { } } else { //得到选择的行 var r = this.getSelectedRecord(); try { r.beginEdit(); for (var name in values) { r.set(name, values[name]); } r.endEdit(); r.commit(); if (this.fnUpdate) { this.fnUpdate(this.store, r); } } catch (e) { } } this.hideWindow(); }, //得到Panel中的方法 getForm: function () { //得到当前的表单对象 return this.getFormPanel().getForm(); }, getFormPanel: function () { if (!this.gridForm) { //不存在创建一个 this.gridForm = this.createForm(); //存在就直接返回 return this.gridForm; } }, //创建一个窗体的按钮 createForm:function(){ var items = []; for (var i = 0; i < this.headers.length; i++) { var header = this.headers[i]; var f = this.fields[i]; //构造json对象 item.push({ fieldLabel: header, name: f }); } //进行保存 var form = new Ext.form.FormPanel({ frame: true, defaultType: "textfield", buttonAlign: "center", labelAlign: "right", labelWidth: 70, items: items, buttons: [ { text: "提交", hendler: function () { //指向当前的对象 this.submitRecord.createDelegate(this); } }, { text: "重置", hendler: function () { form.getForm().reset(); } }] }); return form; }, showWindows: function () { this.getWindow().show(); }, hideWindow:function(){ this.getWindow().hide(); }, getWindow:function(){ if (!this.gridWindow) { this.gridWindow = this.createWindow(); } return this.gridWindow; }, createWindow: function () { var formPanel = this.getFormPanel(); var win = new Ext.Window({ title: "OA办公系统", width: eval("this.subFormConfig." + this.Action + ".width"), autoHeight: true, closeAction: "hide", modal: true, items: [formPanel] }); return win; } }二：Ext.get()和Ext.fly()之区别：
1.Ext.Element是Ext对Dom元素的一个强有力封装，它封装了很多方便对dom操作的接口
2.Ext.get和Ext.fly返回的都是一个Element对象，但是Ext.get返回的是一个独立的Element，拥有自己独立的操作接口
三：设置日期的格式的方法：
一：格式化当前的额时间格式：
var task={ run:function(){ Ext.fly('clock').update(new Date().format("g:i:s")); } interval:1000 }
二：开启用行的格式：
var runner=new Ext.util.TaskRunner(); //定时执行任务（该类可以保障每一个任务或服务都可以在任何时刻独立的运行，而不会影响其他的任务或服务的运行）
runner.start(task);
