get the last modification date in a collection within sharepoint application

Question

I have an asp.net Web Api application which communicates with a sharepoint application via web services.

I add this method to create a list reference with using http request

 public static SPService.Lists CreateSPServiceListsReference(HttpRequestMessage request, bool defaultEpic = true)
        {
            var login = EpicConfiguration.ExtractAuthenticationParameters(request);
            var lists = new SPService.Lists(){
                Credentials = new NetworkCredential(login.Username, login.Password, login.Domain),
                Url = string.Format(SPServiceListFormat, (defaultEpic)?login.EpicWebUrl:login.RefWebUrl)

            };

            return lists;
        }

The this the first time I have to communicate with a sharepoint app. I need to call a service which takes as a parameter the name of the list and returns the last modification date in this this list. I googled before asking this question but I didn't find a solution.

Any ideas?

Answer 1

You could utilize Lists.GetList Method of SharePoint Web Services to retrieve schema for the specified list and then extract Modified property which represents last modified date.

Example

using (var svc = new ListsService.Lists())
{
       svc.Credentials = new NetworkCredential(userName, password, domain);
       var list = svc.GetList("Pages");
       var listXml = XElement.Parse(list.OuterXml);
       var lastModified = listXml.Attribute("Modified").Value;

}