Add list item using anonymous user in public website of shareopint 2013 office 365

Question

Can any body know the solution to over come of following error while add list item using anonymous user using CSOM in shareopint 2013 office 365 public website.
I have tried following solution to narrow down the error from "Access permission"
http://sharepointtaproom.com/2014/08/28/anonymous-api-access-for-office-365-public-sites/#comment-2304

Answer 1

Try below:
http://www.codeproject.com/Articles/785099/Publish-a-Form-for-Anonymous-Users-on-a-Public-Sit
http://blogs.technet.com/b/sharepointdevelopersupport/archive/2013/06/13/how-to-allow-anonymous-users-to-add-items-to-sharepoint-list-using-client-object-model.aspx
// Allows AddItem operation using anonymous access
private
static voidAllowAnonAccess(){
Console.WriteLine("Enabling Anonymous access....");
SPWebApplication webApp =
SPWebApplication.Lookup(new
Uri(webAppUrl));
            webApp.ClientCallableSettings.AnonymousRestrictedTypes.Remove(typeof(Microsoft.SharePoint.SPList),
"GetItems");
            webApp.ClientCallableSettings.AnonymousRestrictedTypes.Remove(typeof(Microsoft.SharePoint.SPList),
"AddItem");
            webApp.Update();
Console.WriteLine("Enabled Anonymous access!");  
// Revokes Add/Get Item operation using anonymous access
private static
voidRemoveAnonAccess(){
Console.WriteLine("Disabling Anonymous access....");
SPWebApplication webApp =
SPWebApplication.Lookup(new
Uri(webAppUrl));
            webApp.ClientCallableSettings.AnonymousRestrictedTypes.Add(typeof(Microsoft.SharePoint.SPList),
"GetItems");
            webApp.ClientCallableSettings.AnonymousRestrictedTypes.Add(typeof(Microsoft.SharePoint.SPList),
"AddItem");
            webApp.Update();
Console.WriteLine("Disabled Anonymous access!"); 
http://www.fiechter.eu/Blog/Post/12/Create-a-survey-for-anonymous-users-on-Office-365
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