SharePoint 2013:自定义ECB菜单项的添加

本文分别介绍了两种常用的添加ECB菜单项的方式。

声明式创建

这也是微软最佳实践推荐的方式。在VS中创建一个SharePoint空解决方案，并添加一个“空元素”类型的SPI。

在Elements.xml中，定义一个CustomAction，重点关注一下其中高亮部分的属性（本例在文档内容类型的项上添加了一个菜单项，点击导航到一个自定义应用程序页面，并传递项所在的列表的Id作为参数）:

添加到Feature，并部署。效果如下：

服务器对象模型创建

这里会用到Feature的事件处理程序。本例同时还演示了如何指定Url，并且用对话框的方式打开。同时，还会传递网站Url，所选列表项的ID给目标应用程序页面。

public override void FeatureActivated(SPFeatureReceiverProperties properties)
{
    SPSite site = (SPSite)properties.Feature.Parent;
    SPWeb web=site.RootWeb;
    try{
        
                   SPList list = web.Lists["Announcements"];
                   web.AllowUnsafeUpdates = true;
                    if (list.UserCustomActions.Count > 0)
                    {
                        foreach (SPUserCustomAction action in list.UserCustomActions)
                        {
                            if (action.Name == "ECBItemCustomization")
                            {
                                action.Delete();
                                list.Update();
                                break;
                            }
                        }
                    }
                    SPUserCustomAction customaction = list.UserCustomActions.Add();
                    customaction.Name = "ECBItemCustomization";
                    customaction.Location = "EditControlBlock";
                 
                    //customaction.ImageUrl = "/_layouts/15/images/demo/workflows.gif";
 
                    string cAction = @"javascript: var options = {
                                                url: '{SiteUrl}' + '/_layouts/15/demo/page.aspx/?WorkItemID={ItemId}',
                                                allowMaximize: false,
                                                width: 500,
                                                height: 440 };
                                            SP.UI.ModalDialog.showModalDialog(options);";
                    customaction.Url = cAction;
                    customaction.Sequence = 106;
                    customaction.Title = "Demo ECB Title";
                    customaction.Update();
                    list.Update();
                    web.AllowUnsafeUpdates = false;
                    
          }
          catch{ }
 }

相应的，要在Feature关闭时移除我们的ECB项：

public override void FeatureDeactivating(SPFeatureReceiverProperties properties)
{
    SPSite site = (SPSite)properties.Feature.Parent;
    SPWeb web=site.RootWeb;
    try{
        
                   SPList list = web.Lists["Announcements"];
                   web.AllowUnsafeUpdates = true;
                    if (list.UserCustomActions.Count > 0)
                    {
                        foreach (SPUserCustomAction action in list.UserCustomActions)
                        {
                            if (action.Name == "ECBItemCustomization")
                            {
                                action.Delete();
                                list.Update();
                                break;
                            }
                        }
                    }
                    
                    web.AllowUnsafeUpdates = false;
                    
          }
          catch{ }
}