Example update

CS/InstantFeedback.csproj

@@ -5,7 +5,7 @@
     <ImplicitUsings>enable</ImplicitUsings>
   </PropertyGroup>
   <ItemGroup>
-    <PackageReference Include="DevExpress.Blazor" Version="25.1.3" />
+    <PackageReference Include="DevExpress.Blazor" Version="26.1.3" />
     <PackageReference Include="Microsoft.EntityFrameworkCore" Version="9.0.0" />
     <PackageReference Include="Microsoft.EntityFrameworkCore.InMemory" Version="9.0.0" />
     <PackageReference Include="Microsoft.EntityFrameworkCore.Sqlite" Version="9.0.0" />

CS/Pages/Grid.razor

@@ -3,23 +3,32 @@
 @using InstantFeedback.Models;
 
 <DxGrid Data="Issues" ShowSearchBox=true
-        PageSize="50"
         FilterMenuButtonDisplayMode="GridFilterMenuButtonDisplayMode.Always"
         ShowGroupPanel=true
+        EditMode="GridEditMode.EditRow"
+        ShowFilterRow="true"
+        VirtualScrollingEnabled="true"
         CssClass="h-100"
         TextWrapEnabled=true
         KeyFieldName="Id">
     <Columns>
-        <DxGridDataColumn FieldName="Id" Width="100" />
-        <DxGridDataColumn FieldName="Subject" />
-        <DxGridDataColumn FieldName="UserId" Caption="User" Width="250">
-            <EditSettings>
-                <DxComboBoxSettings Data="Users" ValueFieldName="Id" TextFieldName="FullName" />
-            </EditSettings>
+        <DxGridCommandColumn Width="90"/>
+        <DxGridDataColumn FieldName="Id" Width="100" DataRowEditorVisible="false"/>
+        <DxGridDataColumn FieldName="Subject"/>
+        <DxGridDataColumn FieldName="User.FullName" Caption="User" Width="250">
+            <CellEditTemplate>
+                @{
+                    var issue = (ServerMode.IssueWithUser)context.EditModel;
+                }
+                <DxComboBox TValue="ServerMode.UserInfo" TData="ServerMode.UserInfo" Data="Users" Value="issue.User" KeyFieldName="@nameof(ServerMode.UserInfo.Id)"
+                            ValidationEnabled="false"
+                            SelectedDataItemChanged="s => issue.User = s.DataItem" TextFieldName="@nameof(ServerMode.UserInfo.FullName)"
+                            ListRenderMode="ListRenderMode.Virtual"/>
+            </CellEditTemplate>
         </DxGridDataColumn>
-        <DxGridDataColumn FieldName="Created" Width="100" />
-        <DxGridDataColumn FieldName="Votes" Width="150" />
-        <DxGridDataColumn FieldName="Priority" Width="150" />
+        <DxGridDataColumn FieldName="Created" Width="100"/>
+        <DxGridDataColumn FieldName="Votes" Width="150"/>
+        <DxGridDataColumn FieldName="Priority" Width="150"/>
     </Columns>
     <GroupSummary>
         <DxGridSummaryItem FieldName="Id" SummaryType="GridSummaryItemType.Count" />
@@ -30,5 +39,5 @@
     public object Issues { get; set; }
 
     [Parameter]
-    public IEnumerable<User> Users { get; set; }
+    public IEnumerable<ServerMode.UserInfo> Users { get; set; }
 }

CS/Pages/ServerMode.razor

@@ -8,21 +8,43 @@
 <Grid Issues="instantFeedbackSource" Users="users" />
 
 @code {
-    EntityInstantFeedbackSource instantFeedbackSource { get; set; }
-    IEnumerable<User> users;
+    GridDevExtremeDataSource<IssueWithUser> instantFeedbackSource { get; set; }
+    IEnumerable<UserInfo> users;
 
-    protected override void OnInitialized()
-    {
-        instantFeedbackSource = new EntityInstantFeedbackSource(e =>
-        {
-            e.KeyExpression = "Id";
-            e.QueryableSource = Context.Issues;
+    protected override void OnInitialized() {
+        var userQuery = Context.Issues.Include("User").Select(i => new IssueWithUser {
+            Id = i.Id,
+            Subject = i.Subject,
+            User = new UserInfo {
+                Id = i.UserId,
+                FullName = i.User.FirstName + " " + i.User.LastName,
+            },
+            Created = i.Created,
+            Votes = i.Votes,
+            Priority = i.Priority,
+        });
+        instantFeedbackSource = new GridDevExtremeDataSource<IssueWithUser>(userQuery);
+        users = Context.Users.Select(u => new UserInfo {
+            Id = u.Id,
+            FullName = u.FullName
         });
-        users = Context.Users.ToList();
     }
 
     public void Dispose()
     {
-        instantFeedbackSource?.Dispose();
     }
+    public class IssueWithUser {
+        public int Id { get; set; }
+        public string Subject { get; set; }
+        public UserInfo User { get; set; }
+        public DateTime Created { get; set; }
+        public int Votes { get; set; }
+        public Priority Priority { get; set; }
+    }
+    public class UserInfo {
+        public int Id { get; set; }
+        public string FullName { get; set; }
+    }
+
 }
+

CS/Program.cs

@@ -13,13 +13,13 @@
     options.SizeMode = DevExpress.Blazor.SizeMode.Medium;
 });
 
-//builder.Services.AddDbContext<IssuesContext>((sp, options) =>
-//{
-//    var env = sp.GetRequiredService<IWebHostEnvironment>();
-//    var dbPath = Path.Combine(env.ContentRootPath, "Issues.mdf");
-//    options.UseSqlServer("Server=(localdb)\\MSSQLLocalDB;Integrated Security=true;AttachDbFileName=" + dbPath);
-//}, contextLifetime: ServiceLifetime.Transient);
-builder.Services.AddDbContext<IssuesContext>((sp, options) => options.UseInMemoryDatabase("Issues"), contextLifetime: ServiceLifetime.Transient);
+builder.Services.AddDbContext<IssuesContext>((sp, options) =>
+{
+    var env = sp.GetRequiredService<IWebHostEnvironment>();
+    var dbPath = Path.Combine(env.ContentRootPath, "Issues.mdf");
+    options.UseSqlServer("Server=(localdb)\\MSSQLLocalDB;Integrated Security=true;AttachDbFileName=" + dbPath);
+}, contextLifetime: ServiceLifetime.Transient);
+// builder.Services.AddDbContext<IssuesContext>((sp, options) => options.UseInMemoryDatabase("Issues"), contextLifetime: ServiceLifetime.Transient);
 builder.Services.AddTransient<IssuesContextInitializer>();
 
 

CS/appsettings.Development.json

@@ -3,7 +3,9 @@
   "Logging": {
     "LogLevel": {
       "Default": "Information",
-      "Microsoft.AspNetCore": "Warning"
+      "Microsoft.AspNetCore": "Warning",
+      "Microsoft.EntityFrameworkCore.Database.Command": "Information",
+      "Microsoft.EntityFrameworkCore": "Information"
     }
   }
 }