From ffb4c9872dcddea2c6e0e8686510cc4f85a63e99 Mon Sep 17 00:00:00 2001
From: Samuele Locatelli <samuele@steamware.net>
Date: Thu, 26 Aug 2021 17:48:59 +0200
Subject: [PATCH] Aggiunta paginazione utenti

---
 GWMS.UI/Pages/UserAdmin.razor    |  4 +-
 GWMS.UI/Pages/UserAdmin.razor.cs | 72 +++++++++++++++++++++++++++++++-
 2 files changed, 74 insertions(+), 2 deletions(-)

diff --git a/GWMS.UI/Pages/UserAdmin.razor b/GWMS.UI/Pages/UserAdmin.razor
index aa623f7..46336ce 100644
--- a/GWMS.UI/Pages/UserAdmin.razor
+++ b/GWMS.UI/Pages/UserAdmin.razor
@@ -1,6 +1,7 @@
 @page "/UserAdmin"
 
 @using GWMS.UI.Pages
+@using GWMS.UI.Components
 
 @if (ShowPopup)
 {
@@ -168,6 +169,7 @@
             </tbody>
         </table>
     </div>
-    <div class="card-footer">
+    <div class="card-footer p-1">
+        <DataPager PageSize="numRecord" currPage="currPage" numRecordChanged="ForceReload" numPageChanged="ForceReloadPage" totalCount="totalCount" showLoading="isLoading" />
     </div>
 </div>
\ No newline at end of file
diff --git a/GWMS.UI/Pages/UserAdmin.razor.cs b/GWMS.UI/Pages/UserAdmin.razor.cs
index aa09a45..5f2aed7 100644
--- a/GWMS.UI/Pages/UserAdmin.razor.cs
+++ b/GWMS.UI/Pages/UserAdmin.razor.cs
@@ -27,6 +27,11 @@ namespace GWMS.UI.Pages
         /// </summary>
         private IdentityUser objUser = new IdentityUser();
 
+        /// <summary>
+        /// Collezione utenti
+        /// </summary>
+        private List<IdentityUser> RawList = new List<IdentityUser>();
+
         /// <summary>
         /// Elenco ROLES da mostrare in dropdown durante editing (1 solo? usare DB?!?)
         /// </summary>
@@ -55,6 +60,10 @@ namespace GWMS.UI.Pages
 
         #region Private Properties
 
+        private int _currPage { get; set; } = 1;
+
+        private int _numRecord { get; set; } = 10;
+
         [CascadingParameter]
         private Task<AuthenticationState> authenticationStateTask { get; set; }
 
@@ -78,6 +87,36 @@ namespace GWMS.UI.Pages
         /// </summary>
         private string CurrentUserRole { get; set; } = "User";
 
+        private int currPage
+        {
+            get => _currPage;
+            set
+            {
+                if (_currPage != value)
+                {
+                    _currPage = value;
+                    var pUpd = Task.Run(async () => await ReloadData());
+                    pUpd.Wait();
+                }
+            }
+        }
+
+        private bool isLoading { get; set; } = false;
+
+        private int numRecord
+        {
+            get => _numRecord;
+            set
+            {
+                if (_numRecord != value)
+                {
+                    _numRecord = value;
+                    var pUpd = Task.Run(async () => await ReloadData());
+                    pUpd.Wait();
+                }
+            }
+        }
+
         #endregion Private Properties
 
         #region Protected Properties
@@ -97,6 +136,19 @@ namespace GWMS.UI.Pages
         [Inject]
         protected IJSRuntime JSRuntime { get; set; }
 
+        protected int totalCount
+        {
+            get
+            {
+                int answ = 0;
+                if (RawList != null)
+                {
+                    answ = RawList.Count;
+                }
+                return answ;
+            }
+        }
+
         #endregion Protected Properties
 
         #region Private Methods
@@ -220,6 +272,13 @@ namespace GWMS.UI.Pages
             ShowPopup = true;
         }
 
+        private async Task ReloadData()
+        {
+            isLoading = true;
+            await GetUsers();
+            isLoading = false;
+        }
+
         private async Task SaveUser()
         {
             try
@@ -353,6 +412,16 @@ namespace GWMS.UI.Pages
 
         #region Protected Methods
 
+        protected void ForceReload(int newNum)
+        {
+            numRecord = newNum;
+        }
+
+        protected void ForceReloadPage(int newNum)
+        {
+            currPage = newNum;
+        }
+
         protected override async Task OnInitializedAsync()
         {
             AppMService.ShowSearch = true;
@@ -386,7 +455,8 @@ namespace GWMS.UI.Pages
             // Collection to hold users
             UsersList = new List<UserData>();
             // get users from _UserManager
-            var user = _UserManager.Users.Select(x => new IdentityUser
+            RawList = _UserManager.Users.ToList();
+            var user = RawList.Skip(numRecord * (currPage - 1)).Take(numRecord).Select(x => new IdentityUser
             {
                 Id = x.Id,
                 UserName = x.UserName,