public async void UpdateRequests(string _searchFilter = null)
        {
            var req = await RequestViewModel.GetAll();

            if (req != null)
            {
                Requests.Clear();
                if (_searchFilter.Contains("Pending"))
                {
                    foreach (var request in req.Where(s => s.Status.Name.Contains("nostatus")))
                    {
                        Requests.Add(request);
                    }
                }
                else if (!_searchFilter.Contains("All"))
                {
                    foreach (var request in req.Where(s => s.Status.Name.Contains(_searchFilter)))
                    {
                        Requests.Add(request);
                    }
                }
                else
                {
                    foreach (var request in req)
                    {
                        Requests.Add(request);
                    }
                }
            }
        }
        public async Task RefreshRequests()
        {
            var req = await RequestViewModel.GetAll();

            if (req != null)
            {
                Requests.Clear();
                foreach (var request in req)
                {
                    Requests.Add(request);
                }
            }
        }
        public async void SearchRequests(string _searchFilter = null)
        {
            var req = await RequestViewModel.GetAll();

            if (req != null)
            {
                Requests.Clear();
                if (_searchFilter != null)
                {
                    foreach (var request in req.Where(r => r.ProjectName.Contains(_searchFilter) ||
                                                      r.User.First_Name.Contains(_searchFilter)))
                    {
                        Requests.Add(request);
                    }
                }
                else
                {
                    foreach (var request in req)
                    {
                        Requests.Add(request);
                    }
                }
            }
        }