UI

TechHelper.Server/Services/ClassService.cs

@@ -143,6 +143,22 @@ namespace TechHelper.Services
 			}
 		}
 
+		public async Task<ApiResponse> GetGradeClasses(byte Grade)
+		{
+			try
+			{
+				var result = await _work.GetRepository<Class>().GetAllAsync(predicate:
+					c => c.Grade == Grade);
+
+				var classes = result.Select(x => x.Number).ToList();
+				return ApiResponse.Success(result: classes);
+			}
+			catch (Exception ex)
+			{
+				return ApiResponse.Error($"年级班级列表失败, {ex.Message}, {ex.InnerException}");
+			}
+		}
+
 		public async Task<ApiResponse> GetUserClass(Guid id)
 		{
 			var tch = await _work.GetRepository<ClassTeacher>().GetAllAsync(predicate: user => user.TeacherId == id, include: i => i

TechHelper.Server/Services/IClassService.cs

@@ -10,5 +10,7 @@ namespace TechHelper.Services
 		public Task<ApiResponse> GetUserClass(Guid user); // List<Class>
 		public Task<ApiResponse> GetUserClassRole(Guid user); // List<UserClassRoleDto>
 		public Task<ApiResponse> GetClassStudents(ClassDto classDto); // Class
+		public Task<ApiResponse> GetGradeClasses(byte Grade); // Class
+
 	}
 }