import?mx.collections.XMLListCollection;
import?mx.controls.Alert;
import?mx.controls.TextInput;
import?mx.events.AdvancedDataGridEvent;
import?mx.events.CloseEvent;
import?mx.rpc.events.ResultEvent;
private?var?params:Object?=?
new?Object();
//
private?var?ld:XMLListCollection;?官方文档的XMLListCollection并不能用,例子有问题郁闷
[Bindable]
private?var?_result?:?XML?;?
//
注意文件名防止冲突
/**?*/
/**
?*?xml数据的渲染
?*?*/
public?function?resultHandler(event:ResultEvent):
void?
{
????_result?=?XML(event.result);
}
/**?*/
/**
?*?查询所有产品的按钮事件
?*?*/
public?function?insertItemHandler(event:ResultEvent):
void?
{
????fill();
}
/**?*/
/**
?*?查询所有产品的方法?
?*?*/
public?function?fill():
void
{
????//为productService(HTTPService)?重新绑定监听器(查询)
????productService.removeEventListener(ResultEvent.RESULT,insertItemHandler);
????productService.addEventListener(ResultEvent.RESULT,resultHandler);
????productService.method?=?"GET";
????//要传递的参数
????params['method']?=?"findAll";
????productService.cancel();
????productService.send(params);
????//切换到Grid视图
????viewstack1.selectedIndex=1;
}
/**?*/
/**
?*?插入产品
?*?*/
public?function?insertProduct():
void
{
????//绑定新的监听器(插入)
????productService.removeEventListener(ResultEvent.RESULT,resultHandler);
????productService.addEventListener(ResultEvent.RESULT,insertItemHandler);
????productService.method?=?"POST";
????//传递Form表单参数
????params?=?
{"method":?"save",?"id":?NaN,?"productName":?productName.text,
?????????????????"remark":?remark.text};
????productService.cancel();
????productService.send(params);
????clearInputFields();
}
/**?*/
/**
?*?
?*?更新记录的事件处理函数
?*?
?*?*/
public?function?updateHandler(event:AdvancedDataGridEvent):
void
{
????//取消的话不更新
????if(event.reason?==?"cancelled")
????
{
????????return;
????}
????//重新注册
????productService.removeEventListener(ResultEvent.RESULT,insertItemHandler);
?????//得到输入后的新数据????
?????var?newData:String?=?(TextInput(event.currentTarget.itemEditorInstance)).text;
?????//得到输入前的三个数据
?????var?_id?:?int??=?this.grid1.selectedItem["id"];
?????var?_productName?:String?=?this.grid1.selectedItem["productName"];
?????var?_remark?:String?=?this.grid1.selectedItem["remark"];
?????//第二列为产品名称
?????if(event.columnIndex?==?1)
?????
{
?????????_productName?=?newData;
?????}
?????//第三列为备注
?????if(event.columnIndex?==?2)
?????
{
?????????_remark?=?newData;
?????}
?????params?=?
{"method":?"update",?"id":?_id,"productName":_productName,"remark":_remark};
?????productService.cancel();
?????productService.send(params);
}
/**?*/
/**
?*?删除的方法
?*?*/
public?function?remove()?:?
void
{
????var?index:int?=?this.grid1.selectedIndex;
????if(index?==?-1)
????
{
?????????Alert.show("您没有选择任何记录","提示");
?????????return;
????}
?????Alert.yesLabel?=?"确定";
?????Alert.cancelLabel?=?"取消";
?????Alert.show("确定要删除吗?","提示",Alert.YES|Alert.CANCEL,this,defaultCloseHandler);
}
/**?*/
/**
?*?处理选择是否删除后的事件
?*?
?*?*/
public?function?defaultCloseHandler(event:CloseEvent):
void
{
?????//如果点击了确定
?????if(event.detail?==?Alert.YES)
?????
{
??????????productService.removeEventListener(ResultEvent.RESULT,resultHandler);
?????????productService.addEventListener(ResultEvent.RESULT,insertItemHandler);
??????????var?id?:?String??=?this.grid1.selectedItem["id"];
?????????params?=?
{"method":?"remove",?"id":?id};
?????????productService.cancel();
?????????productService.send(params);
?????}
}
/**?*/
/**
?*?清除form中的属性值
?*?*/
private?function?clearInputFields():
void
{
????productName.text?=?"";
????remark.text?=?"";
}
