public bool IsCheckedOut(SPList list, SPListItem listItem)
{
var cacheId = string.Format("SharePointFile:{0}_{1}", list.Id, listItem.Id);
var isCheckedOut = (bool?)cacheService.Get(cacheId, CacheScope.Context | CacheScope.Process);
if (isCheckedOut == null)
{
using (var clientContext = new SPContext(list.SPWebUrl, credentials.Get(list.SPWebUrl)))
{
var spfile = clientContext.ToFile(list.Id, listItem.Id);
clientContext.Load(spfile, item => item.CheckedOutByUser);
clientContext.ExecuteQuery();
isCheckedOut = !(spfile.CheckedOutByUser.ServerObjectIsNull ?? true);
cacheService.Put(cacheId, isCheckedOut, CacheScope.Context | CacheScope.Process, new string[0], CacheTimeOut);
}
}
return(isCheckedOut.Value);
}