添加项目文件。

TechHelper.Client/Pages/Manage/Class.razor

@@ -0,0 +1,58 @@
+@page "/Account/Manage/Class"
+@using System.ComponentModel.DataAnnotations
+@using Entities.Contracts
+@using Microsoft.AspNetCore.Identity
+
+
+<PageTitle>Profile</PageTitle>
+
+@if (authenticationStateTask.Result.User.FindFirst("Class")?.Value == null)
+{
+
+	<EditForm Model="@_userRegistrationToClassDto" OnValidSubmit="Register" FormName="ClassForm">
+		<DataAnnotationsValidator />
+		<MudGrid>
+			<MudItem xs="12" sm="7">
+				<MudCard>
+					<MudCardContent>
+						<MudRadioGroup T="UserRoles" Label="Roles" @bind-Value="_userRegistrationToClassDto.Roles">
+							@foreach (UserRoles item in Enum.GetValues(typeof(UserRoles)))
+							{
+								if (item != UserRoles.Administrator)
+								{
+									<MudRadio Value="@item">@item.ToString()</MudRadio>
+								}
+							}
+						</MudRadioGroup>
+						<MudTextField Label="Grade" Class="mt-3"
+									  @bind-Value="_userRegistrationToClassDto.GradeId" For="@(() => _userRegistrationToClassDto.GradeId)" />
+						<MudTextField Label="Class" HelperText="请输入你的班级" Class="mt-3"
+									  @bind-Value="_userRegistrationToClassDto.ClassId" For="@(() => _userRegistrationToClassDto.ClassId)" />
+
+						@if (_userRegistrationToClassDto.Roles == UserRoles.Teacher)
+						{
+							<MudSelect @bind-Value="_userRegistrationToClassDto.SubjectArea" Label="Select Subject" AdornmentColor="Color.Secondary">
+								@foreach (SubjectAreaEnum item in Enum.GetValues(typeof(SubjectAreaEnum)))
+								{
+									<MudSelectItem Value="@item">@item</MudSelectItem>
+								}
+							</MudSelect>
+						}
+					</MudCardContent>
+					<MudCardActions>
+						<MudButton ButtonType="ButtonType.Submit" Variant="Variant.Filled" Color="Color.Primary" Class="ml-auto">Register</MudButton>
+					</MudCardActions>
+				</MudCard>
+			</MudItem>
+		</MudGrid>
+	</EditForm>
+
+
+}
+else
+{
+	<MudPaper>
+		<MudText Class="ma-3 pa-3"> 年级 : @authenticationStateTask.Result.User.FindFirst("Grade")?.Value.ToString() </MudText>
+		<MudText Class="ma-3 pa-3"> 班级 : @authenticationStateTask.Result.User.FindFirst("Class")?.Value.ToString() </MudText>
+	</MudPaper>
+}