extjs4 grid 多选、添加复选框、动态添加删除数据

grid多选属性：multiSelect: true

添加复选框：首先定义var selectModel = Ext.create(‘Ext.selection.CheckboxModel’); 然后设置grid的selModel属性。

动态添加删除数据：store.insert();和store.remove();

示例代码：

var arows = Ext.getCmp('dailytestuffASG').getSelectionModel().getSelection();
var orows = Ext.getCmp('dailytestuffOSG').getSelectionModel().getSelection();
if(orows.length==0){
Ext.Msg.alert('错误','请选择要添加的记录！');
return;
}
var flag = false;
for(var i=0;i<orows.length;i++){
if(arows.length>0){
for(var j=0;j<arows.length;j++){
if(orows[i].get('userId')==arows[j].get('userId')){
flag = true;
break;
}
}
if(flag==true){
flag==false;
continue;
}
}
var data = [{'userId': orows[i].get('userId'),
'userName': orows[i].get('userName'),
'depart': orows[i].get('depart')}];
dailytestuffASGStore.insert(0,data);
}
Ext.each(orows,function(orows){
dailytestuffOSGStore.remove(orows);
});
dailyASGModel.selectAll();