Set List Properties By WebRequest

There are many ways in CSOM to set the list properties of a SharePoint site but there are a few properties which we can’t set directly from the list object.

There are many ways in CSOM to set the list properties of a SharePoint site but there are a few properties which we can’t set directly from list object. In this blog, I will explain how to set those properties using WebRequest, for example: offline client availability, major version limit, and major with minor version limit.

This below-mentioned code sample will help us to set those properties which we cannot access directly from the list object.

The code block for this is as mentioned below,

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using Microsoft.SharePoint.Client;
using System.Net;
using System.Security;
using Microsoft.SharePoint.Client.Utilities;
using System.IO;
namespace EditListProperties {
    class EditListPropertiesByWebRequest {
        public static string HEADER_CONTENT_APP = "application/x-vermeer-urlencoded";
        public static string USER_AGENT_APP = "FrontPage";
        public static string MESSAGE_SUCCESS_APP = "message=successfully";
        public static string MESSAGE_CONFLICT_APP = "msg=Save Conflict";
        public static string ENABLE_OFFLINE_CLIENT_AVAILABILITY_APP = "&ExcludeFromOfflineClient=False";
        public static string DISABLE_OFFLINE_CLIENT_AVAILABILITY_APP = "&ExcludeFromOfflineClient=True";
        public static string MAJOR_VERSION_LIMIT_APP = "&MajorVersionLimit=";
        public static string MAJOR_VERSION_WITH_MINOR_APP = "&MajorWithMinorVersionsLimit=";
        static void Main(string[] args) {
            string listName = "CopyDoc";
            string username = string.Empty;
            string password = string.Empty;
            NetworkCredential credentials = null;
            List list = null;
            string query = string.Empty;
            try {
                username = "userName";
                password = "******";
                ClientContext ctx = new ClientContext("siteUrl"); //creating ClientContext from given SharePoint Site
                credentials = new NetworkCredential(username, password); //creating creadential object for SharePoint site.
                ctx.Credentials = credentials;
                Web web = ctx.Web;
                list = ctx.Web.Lists.GetByTitle(listName);
                ctx.Load(list, l => l.EnableVersioning);
                ctx.ExecuteQuery();
            } catch (Exception ex) {}
            try {
                //if we want to "SET OFFLINE CLIENT AVAILABILITY"
                string value = string.Empty;
                value = "Enable"; //We can change it to Enable or Disable accoring to requirement
                if (value == "Enable") // if we want it to be enabled
                {
                    query += ENABLE_OFFLINE_CLIENT_AVAILABILITY_APP;
                } else if (value == "Disable") // if we want it to be disabled
                {
                    query += DISABLE_OFFLINE_CLIENT_AVAILABILITY_APP;
                }
                //if we want to "SET MAJOR VERSION LIMIT"
                value = string.Empty;
                value = "10"; //We can change it to any intiger accoring to requirement
                list.EnableVersioning = true;
                list.Update();
                query += MAJOR_VERSION_LIMIT_APP + value;
                //if we want to "SET MAJOR WITH MINOR VERSIONS LIMIT"
                value = string.Empty;
                value = "5"; //We can change it to any intiger accoring to requirement
                list.EnableVersioning = true;
                list.Update();
                query += MAJOR_VERSION_WITH_MINOR_APP + value;
                GetHttpWebRequest(query, credentials);
            } catch (Exception er) {}
        }
        #region GetWebRequest
        /// <summary>
        ///
        /// </summary>
        /// <param name="query"></param>
        /// <param name="credential"></param>
        private static void GetHttpWebRequest(string query, NetworkCredential credential) {
            try {
                HttpWebRequest request = (HttpWebRequest) WebRequest.Create(query);
                request.Method = "POST";
                request.Headers["Content"] = HEADER_CONTENT_APP;
                request.Headers["X-Vermeer-Content-Type"] = HEADER_CONTENT_APP;
                request.UserAgent = USER_AGENT_APP;
                request.UseDefaultCredentials = false;
                request.KeepAlive = true;
                request.Credentials = credential;
                using(System.IO.Stream requestStream = request.GetRequestStream()) {
                    GetWebResponse(request);
                }
            } catch (Exception er) {}
        }
        #endregion
        #region GetResponse
        /// <summary>
        ///
        /// </summary>
        /// <param name="webRequest"></param>
        /// <returns></returns>
        private static string GetWebResponse(HttpWebRequest webRequest) {
            string responseString = string.Empty;
            using(WebResponse webResponse = webRequest.GetResponse()) {
                using(StreamReader reader = new StreamReader(webResponse.GetResponseStream())) {
                    responseString = reader.ReadToEnd();
                    byte[] fileBuffer = Encoding.UTF8.GetBytes(responseString);
                }
            }
            if ((responseString.IndexOf(MESSAGE_SUCCESS_APP) < 0) && (responseString.IndexOf(MESSAGE_CONFLICT_APP) < 0)) {
                throw new Exception(responseString);
            }
            return responseString;
        }#endregion
    }
}

In this blog, I have explained how you can set the properties of a SharePoint list using WebRequest. I hope this information will help you out in a few scenarios.