Store Filter between pages

FoodsharingSiegen.Server/Pages/Prospects.razor.cs

@@ -1,8 +1,10 @@
+using FoodsharingSiegen.Contracts;
 using FoodsharingSiegen.Contracts.Entity;
 using FoodsharingSiegen.Contracts.Enums;
 using FoodsharingSiegen.Contracts.Model;
 using FoodsharingSiegen.Server.Data.Service;
 using FoodsharingSiegen.Server.Dialogs;
+using FoodsharingSiegen.Server.Service;
 using Microsoft.AspNetCore.Components;
 
 namespace FoodsharingSiegen.Server.Pages
@@ -14,17 +16,14 @@ namespace FoodsharingSiegen.Server.Pages
     {
         #region Dependencies
 
-        /// <summary>
-        ///     Gets or sets the value of the prospect service (ab)
-        /// </summary>
         [Inject]
-        public ProspectService ProspectService { get; set; } = null!;
+        private ProspectService ProspectService { get; set; } = null!;
 
         /// <summary>
         ///     Gets or sets the value of the user service (ab)
         /// </summary>
         [Inject]
-        public UserService UserService { get; set; } = null!;
+        private UserService UserService { get; set; } = null!;
 
         #endregion
 
@@ -44,6 +43,9 @@ namespace FoodsharingSiegen.Server.Pages
         /// <inheritdoc />
         protected override async Task InitializeDataAsync()
         {
+            var filter = await LocalStorageService.GetItem<ProspectFilter>(StorageKeys.ProspectFilter);
+            if (filter != null) Filter = filter;
+            
             // Load prospects
             await LoadProspects();
         }
@@ -63,6 +65,21 @@ namespace FoodsharingSiegen.Server.Pages
 
         #endregion
 
+        #region Private Method FilterChangedAsync
+
+        /// <summary>
+        ///     Updates the current filter with the specified ProspectFilter object.
+        /// </summary>
+        /// <param name="arg">The ProspectFilter object containing the updated filter criteria.</param>
+        /// <returns>A task that represents the asynchronous operation.</returns>
+        private async Task FilterChangedAsync(ProspectFilter arg)
+        {
+            Filter = arg;
+            await LocalStorageService.SetItem(StorageKeys.ProspectFilter, Filter);
+        }
+
+        #endregion
+
         #region Private Method LoadProspects
 
         /// <summary>