一步一步webpart-两个WebPart之间交换数据(8)

说明:
本项目中涉及webpart数据提供者和数据使用者两个类
提供者可以向使用者提供：
一项数据(Cell)
一行数据(Row)
一个表的数据(List)
查询过滤器(Filter)
参数(Parameters)
创建项目:
1.新建一个webpartLibrary项目,取名为WebPartLibrary5;
2.删除自动产生的webpart1.cs和webpart1.dwp;
3.新建一个"provider web part"取名为CityProvider.cs,代码如下:

using System;
using System.ComponentModel;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Xml.Serialization;
using System.Security;
using System.Security.Permissions;
using Microsoft.SharePoint;
using Microsoft.SharePoint.Utilities;
using Microsoft.SharePoint.WebPartPages;
using Microsoft.SharePoint.WebPartPages.Communication;

namespace WebPartLibrary5

4.新建CityProvider的部署文件CityProvider.dwp,代码如下:

<?xml version="1.0" encoding="utf-8"?>
<WebPart xmlns="http://schemas.microsoft.com/WebPart/v2" >
<Title>CityProvider</Title>
<Description>一个提供城市名称的WebPart</Description>
<Assembly>WebPartLibrary5</Assembly>
<TypeName>WebPartLibrary5.CityProvider</TypeName>
<!-- Specify initial values for any additional base class or custom properties here. -->
</WebPart>

5.新建一个"consumer web part"取名为CityConsumer.cs,代码如下:

using System;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.ComponentModel;
using System.Xml.Serialization;
using System.Security;
using System.Security.Permissions;
using Microsoft.SharePoint;
using Microsoft.SharePoint.Utilities;
using Microsoft.SharePoint.WebPartPages;
using Microsoft.SharePoint.WebPartPages.Communication;

namespace WebPartLibrary5

6.新建CityConsumer的部署文件CityConsumer.dwp,代码如下:

<?xml version="1.0" encoding="utf-8"?>
<WebPart xmlns="http://schemas.microsoft.com/WebPart/v2" >
<Title>CityConsumer</Title>
<Description>一个接收城市名称的WebPart</Description>
<Assembly>WebPartLibrary5</Assembly>
<TypeName>WebPartLibrary5.CityConsumer</TypeName>
<!-- Specify initial values for any additional base class or custom properties here. -->
</WebPart>

7.部署两个webpart
我是通过Cabman2003部署的,请参见一步一步webpart-将WebPart部署到SPS服务器(7)
8.连接数据提供者于数据使用者
*****点击CityProvider WebPart右上方的菜单按钮，选择“连接、提供一个城市名称给：""CityConsumer”
或
*****点击CityConsumer WebPart右上角的菜单按钮，选择“连接、从…处接收一个城市名称""CityProvider”
即将两个webpart链接起来。