SharePoint 2010开发实例精选——通过客户端对象模型删除页面上的Web部件

下面的例子是在控制台应用程序中使用客户端对象模型，为了在控制台程序中使用ClientContext，我们需要添加两个dll引用到我们的项目中。Microsoft.SharePoint.Client.dll和Microsoft.SharePoint.Client.Runtime.dll。：

public static void DeleteWP()
{
    ClientContext ctx = new ClientContext("http://sp2010u/it");
 
    Web oWeb = ctx.Web;
 
    File oFile = oWeb.GetFileByServerRelativeUrl("/it/SitePages/Home.aspx");
 
    LimitedWebPartManager limitedWebPartManager = oFile.GetLimitedWebPartManager(PersonalizationScope.Shared);
    ctx.Load(limitedWebPartManager.WebParts);
    ctx.ExecuteQuery();
    if (limitedWebPartManager.WebParts.Count == 0)
        throw new Exception("未找到 web 部件");            //获取添加到该页面上的第二个Web部件
    WebPartDefinition oWebPartDef = limitedWebPartManager.WebParts[1];
    //删除该webPart
    oWebPartDef.DeleteWebPart();
    ctx.ExecuteQuery();
    Console.WriteLine("完成！");
}

如果是用javascript实现的话，你需要两个函数：一个用于在页面上查询该Web部件，另一个用于删除一个Web部件。下面的代码可以放在一个HTML表单Web部件中运行（直接贴在WebPart属性->源编辑器中）

<script type="text/ecmascript" language="ecmascript">
    var targetWeb;
    var clientContext;
    function runCode() {
        clientContext = new SP.ClientContext("/it");
        targetWeb = clientContext.get_web();
        var oFile = targetWeb.getFileByServerRelativeUrl("/it/SitePages/Home.aspx");
        this.limitedWebPartManager = oFile.getLimitedWebPartManager(SP.WebParts.PersonalizationScope.shared);
        this.clientContext.load(this.limitedWebPartManager.get_webParts());
        clientContext.executeQueryAsync(Function.createDelegate(this, this.deleteWebPart), Function.createDelegate(this, this.onFailedCallback));
    }
    function deleteWebPart()
    {
        if (this.limitedWebPartManager.get_webParts().get_count() == 0)
        {
            alert("未找到 web 部件"); 
            return;
        }
        //获取添加到该页面上的第二个WebPart
        var oWebPartDef = this.limitedWebPartManager.get_webParts().get_item(1);
        oWebPartDef.deleteWebPart();
        this.clientContext.executeQueryAsync(Function.createDelegate(this, this.onSucceededCallback),Function.createDelegate(this, this.onFailedCallback));
    }
    function onSucceededCallback(sender, args)
    {
        alert("完成！");
    }
    function onFailedCallback(sender, args) {
        alert('请求失败. \nError: ' + args.get_message() + '\nStackTrace: ' + args.get_stackTrace());
    }
</script>
<input id="Button1" type="button" value="运行代码" onclick="runCode()" />