Add user custom action to Site Actions menu using Client Object Model

	using System;
	using System.Collections.Generic;
	using System.Linq;
	using System.Text;
	using Microsoft.SharePoint;
	using Microsoft.SharePoint.Client;
	namespace ClientObjectModel
	{
	class Program
	{
	static void Main(string[] args)
	{
	//Add user custom action to Site Actions menu using Client Object Model
	string siteURL = "http://serverName:1111/sites/SPSiteDataQuery/";
	ClientContext context = new ClientContext(siteURL);
	UserCustomActionCollection collUserCustomAction = context.Web.UserCustomActions;
	UserCustomAction userCustomAction = collUserCustomAction.Add();
	userCustomAction.Location = "Microsoft.SharePoint.StandardMenu";
	userCustomAction.Sequence = 100;
	userCustomAction.Group = "SiteActions";
	userCustomAction.Title = "Custom Site Action";
	userCustomAction.Url = "/_layouts/settings.aspx";
	userCustomAction.Update();
	context.Load(userCustomAction);
	context.ExecuteQuery();
	}
	}
	}

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