1.可以使用add(Ext.data.Record[] records)或者add(Ext.data.Record record)向store末尾添加一个或多个record。如:
var newRecord=new PersonRecord({name:"Tom",age:22});
store.add(newRecord);
2.add函数会将新的数据添加到store的末尾,这对其原有的排序方式可能造成破坏,如果希望保持有序,应使用addSorted,调用方法与add相同。可以使用insert方法将记录插入到指定的位置,如:
var newRecord=new PersonRecord({name:"Tom",age:22});
store.insert(store.getCount(),newRecord);
3.删除操作可以使用remove和removeAll函数,如:
store.remove(store.getAt(0));
store.removeAll();
4.修改store中的数据:
store.getAt(0).set("name","Jesse");
5.grid 中的下拉框
{
header: '属性值',
dataIndex: 'PropertyValueName',
width: 130,
/* 指定Editor类型是'combo' */
editor: Ext.create('Ext.form.field.ComboBox', {
name: 'PropertyValueId',
typeAhead: true,
store: comboData_DynaPropertyValue,
valueField: "PropertyValueId",
displayField: "PropertyValueName",
queryMode: 'remote', //local remote
triggerAction: 'all',
lazyRender: true,
repeatTriggerClick: true,
listeners: {
"expand": function (combo, store, index) {
var selectedData = grid_DynaProperty.getSelectionModel().getSelection()[0].data;
comboData_DynaPropertyValue.load({
params: {
PropertyId: selectedData.PropId,
start: startDynaProperty,
limit: limitDynaProperty
}
});
},
change: function (field, newValue, oldValue, op) {
//当下拉框选择改变的时候,也就是原值不等于新值时
if (newValue != oldValue) {
alert(newValue);
grid_DynaProperty.getSelectionModel().getSelection()[0].set("PropertyValueName", newValue);
grid_DynaProperty.getSelectionModel().getSelection()[0].set("PropertyValueId", newValue); }
}
}
})
}