Error In Syntax Using Lists.Lists

Question

I am attempting to follow the tutorial from C# corner about retrieving list history using CSOM and the syntax reads:

Lists.Lists listService = new Lists.Lists();

I get a compile error of:

The type or namespace ‘Lists’ could not be found (are you missing a using directive or an assembly reference?)

I am sure this is very simple and stupid but I can not find it!

Answer 1

That's because the class Lists.Lists does'nt exist. And you can't instanciate the new object of type List, It's the Framwork that gives you the instance

To get a list of your site you will need to do somthing like :

ClientContext ctx = new ClientContext("URL of site ");
List list = ctx.Web.Lists.GetByTitle("Name of your list");
ctx.Load(list);
ctx.ExecuteQuery();

//Now your list is loaded
Console.WriteLine("NB of items : " + list.ItemCount);

Have a look a this link to have some Microsoft Exemple : Complete basic operations using SharePoint client library code

Answer 2

Alternativly, if you are trying to use the SPOM to get a list, try doing it this way:

using(SPSite spSite = new SPSite(SPContext.Current.Web.Url)) //get site instance
{
    using(SPWeb spWeb = spSite.OpenWeb()) //get web instance
    {
        SPList spList = spWeb.Lists["YourListName"];  //get List
        SPListItemCollection collection = spList.GetItems();  //get List Items

        foreach(SPListItem item in collection) //loop through List Items
        {
             var title = item["Title"].ToString();//get a List Item title
        }
    }
}

List.List() is not part of the SharePoint Object Model or the .NET Framework for that matter. If you are using a custom webservice, than you need to install that webservice. Why would you want to use a webservice when you have SPOM and CSOM to get your lists and list data?