I have a model contains list of another model and using master detail report, i want to get report from it using stimulsoft.The view model is:
using System.Collections.Generic;
namespace KimiaBaseProject.Core.ViewModels.Professors
{
public class ProfessorsWithProvidedCoursesForReportVm
{
public string ProfFName { get; set; }
public string ProfLName { get; set; }
public string ProfNCode { get; set; }
public List<ProfProvidedCourses> ProfProvidedCourses;
}
}
and
namespace KimiaBaseProject.Core.ViewModels.Professors
{
public class ProfProvidedCourses
{
public string CourseName { get; set; }
public string Day { get; set; }
public string StartHourr { get; set; }
public string EndHour { get; set; }
}
}
the code i have written to provide data to the report is:
public ActionResult Report()
{
return View();
}
public ActionResult LoadReportSnapshot()
{
//Make data ready
var data = _queryRepository.GetListAsIQueryable();
var mappeddata = data.ProjectTo<ProfessorsWithProvidedCoursesForReportVm>(_mapper.ConfigurationProvider).ToList();
//Load report and register data in it
StiReport report = new StiReport();
report.Load("./wwwroot/Reports/ReportStimul.mrt");
report.RegBusinessObject("ProfInfo_Parent", mappeddata);
report.Dictionary.SynchronizeBusinessObjects();
return StiNetCoreViewer.GetReportResult(this, report);
}
public ActionResult PrintReport()
{
return StiNetCoreViewer.PrintReportResult(this);
}
public ActionResult ExportReport()
{
return StiNetCoreViewer.ExportReportResult(this);
}
and the Report.cshtml file is
#using Stimulsoft.Report.Mvc
#model ProvidedCourseReportVm
#Html.StiNetCoreViewer((new StiNetCoreViewerOptions(){
Actions = {
GetReport="LoadReportSnapshot",
ViewerEvent="ViewEvent",
ExportReport="ExportReport",
PrintReport="PrintReport"
}
}))
the structure of ReportStimul.mrt is
enter image description here
and in the report result, just the master data is shown.
In ReportStimul.mrt I also specified the databand1 as master component of databand2 but it didn't work.
Related
When I am passing a single object like below then it is working as per below image
[HttpPost]
public async Task<ActionResult> Post([FromForm] MyModel Details)
{
}
but when I am passing the List of the object to API then it is not working. option to upload a file is not visible. and if I entered any values in the array then also I am getting count 0 for details.
[HttpPost]
public async Task<ActionResult> Post([FromForm] List<MyModel> Details)
{}
I want to pass the List of images and descriptions to API. How can I achieve it?
Thanks in advance!
You need custom model binding for the list model . Here is a similar demo:
custom model binding code:
public class MetadataValueModelBinder : IModelBinder
{
public Task BindModelAsync(ModelBindingContext bindingContext)
{
if (bindingContext == null)
throw new ArgumentNullException(nameof(bindingContext));
var values = bindingContext.ValueProvider.GetValue(bindingContext.ModelName);
if (values.Length == 0)
return Task.CompletedTask;
var options = new JsonSerializerOptions() { PropertyNameCaseInsensitive = true };
var deserialized = JsonSerializer.Deserialize(values.FirstValue, bindingContext.ModelType, options);
bindingContext.Result = ModelBindingResult.Success(deserialized);
return Task.CompletedTask;
}
}
Add the model binder to the model class:
public class MasterDTO
{
public string Comments { get; set; }
public IFormFile File { get; set; }
public List<DetailDTO> Details { get; set; }
public MasterDTO()
{
this.Details = new List<DetailDTO>();
}
}
[ModelBinder(BinderType = typeof(MetadataValueModelBinder))]
public class DetailDTO
{
public Int64 ElementId { get; set; }
public double LowerLimit { get; set; }
public double HigherLimit { get; set; }
public string Status { get; set; }
public string UserAuthorization { get; set; }
public DateTime? AutorizationDate { get; set; }
}
controller/action
[HttpPost]
public async Task<IActionResult> CreateProjectLimit([FromForm] MasterDTO masterDto)
{
//...
return Ok();
}
You can just use postman to pass the list of images and Descriptions to API
Below is the right answer. we can use Postman to pass images in the array as shown below.
I'm trying to update an entity using entity framework but, everytime I try to do it, it raises an error saying that a nested entity the main class contains cannot be tracked.
These are my classes:
public abstract class BaseEntity
{
public int Id { get; set; }
}
public class Dashboard : BaseEntity
{
public int Order { get; set; }
public string Title { get; set; }
public bool Enabled { get; set; }
public virtual ICollection<Submenu> Submenu { get; set; }
}
public class Submenu : BaseEntity
{
public int Order { get; set; }
public bool Enabled { get; set; }
public string Title { get; set; }
public string Image { get; set; }
public string Descriptions { get; set; }
public virtual ICollection<Action> Actions { get; set; }
public int DashboardId { get; set; }
public virtual Dashboard Dashboard { get; set; }
}
public class Action : BaseEntity
{
public string Type { get; set; }
public string Label { get; set; }
public string Url { get; set; }
public string Extension { get; set; }
public virtual Submenu Submenu { get; set; }
public int SubmenuId { get; set; }
}
The one I am using to update is Dashboard, which contains the rest of the classes.
I'm trying to do it using a generic service layer and a generic repository that are defined this way:
public class GenericService<T> : IGenericService<T> where T : BaseEntity
{
private readonly IBaseRepository<T> baseRepository;
public GenericService(IBaseRepository<T> baseRepository)
{
this.baseRepository = baseRepository;
}
public async Task Update(T entity, T attachedEntity)
{
await baseRepository.Update(entity, attachedEntity);
}
}
public class BaseRepository<T> : IBaseRepository<T> where T : BaseEntity
{
private readonly PortalContext dataContext;
private DbSet<T> DbSet { get; set; }
public BaseRepository(PortalContext context)
{
dataContext = context;
DbSet = dataContext.Set<T>();
}
public async Task Update(T entity, T attachedEntity)
{
dataContext.Entry(attachedEntity).State = EntityState.Detached;
DbSet.Attach(entity);
dataContext.Entry(entity).State = EntityState.Modified;
await dataContext.SaveChangesAsync();
}
}
And, at last but no least, this is the way I am configuring everything at Startup.cs
public void ConfigureServices(IServiceCollection services)
{
services.AddDbContext<PortalContext>(
options => options.UseSqlServer(Configuration.GetConnectionString("PortalContext"))
);
services.AddTransient(typeof(IGenericService<>), typeof(GenericService<>));
services.AddTransient(typeof(IBaseRepository<>), typeof(BaseRepository<>));
services.AddTransient<Func<string, ClaimsPrincipal, IRoleCheck>>((serviceProvider) =>
{
return (controllerName, claimsPrincipal) =>
new RoleCheck(serviceProvider.GetRequiredService<IGenericService<Dossier>>(),
serviceProvider.GetRequiredService<IGenericService<DossierTemplate>>(),
serviceProvider.GetRequiredService<IGenericService<Dashboard>>(),
controllerName, claimsPrincipal);
});
}
What the application first does is calling the RoleCheck class to retrieve and filter the required entities and, after that, the user can update them.
When I call the update function at the controller
public async Task<ActionResult<Dashboard>> Put(int id, [FromBody] Dashboard dashboard)
{
var currentDashboard = await service.Get(id);
if (currentDashboard == null)
{
return NotFound();
}
await service.Update(dashboard, currentDashboard);
return Ok();
}
I always receive the next error at the repository:
error
Is there something I am doing wrong? I have been stuck with this for a week now...
Thanks in advance and sorry for the long text, but I wanted it to be clear.
I could finally solve it by adding .AsNoTracking() at the Get() method of my repository:
public async Task<T> Get(int id, Func<IQueryable<T>, IIncludableQueryable<T, object>> includes)
{
IQueryable <T> query = DbSet.AsNoTracking();
if (includes != null)
{
query = includes(query);
}
return await query.FirstOrDefaultAsync(m => m.Id == id);
}
I am new to .Net Core development. I have a model:
public class CoreGoal
{
[Key]
public long CoreGoalId { get; set; }
public string Title { get; set; }
public string Effect { get; set; }
public string Target_Audience { get; set; }
public string Infrastructure { get; set; }
public virtual ICollection<Image> Images { get; set; }
public CoreGoal()
{
}
}
And Image model is as following:
public class Image
{
[Key]
public long ImagelId { get; set; }
public string Base64 { get; set; }
[ForeignKey("CoreGoalId")]
public long CoreGoalId { get; set; }
public Image()
{
}
}
I am using Repository pattern. My repository:
public interface ICoreGoalRepository
{
void CreateCoreGoal(CoreGoal coreGoal);
}
public class CoreGoalRepository : ICoreGoalRepository
{
private readonly WebAPIDataContext _db;
public CoreGoalRepository(WebAPIDataContext db)
{
_db = db;
}
//Find specific
public CoreGoal Find(long key)
{
return _db.CoreGoals.FirstOrDefault(t => t.CoreGoalId == key);
}
//Add new
public void CreateCoreGoal(CoreGoal coreGoal)
{
_db.CoreGoals.Add(coreGoal);
_db.SaveChanges();
}
}
And controller:
[Route("api/[controller]")]
public class CoreGoalController : Controller
{
private readonly ICoreGoalRepository _coreGoalRepository;
//Controller
public CoreGoalController(ICoreGoalRepository coreGoalRepository) {
_coreGoalRepository = coreGoalRepository;
}
[HttpGet("{id}", Name = "GetCoreGoal")]
public IActionResult GetById(long id)
{
var item = _coreGoalRepository.Find(id);
if (item == null)
{
return NotFound();
}
return new ObjectResult(item);
}
//Create
[HttpPost]
public IActionResult Create([FromBody] CoreGoal item)
{
if (item == null)
{
return BadRequest();
}
_coreGoalRepository.CreateCoreGoal(item);
return CreatedAtRoute("GetCoreGoal", new { id = item.CoreGoalId }, item);
}
}
On POST request for CoreGoal- While creating a new CoreGoal, I would like to convert Image model's Base64 attribute from string to byte[]. I found this (https://adrientorris.github.io/aspnet-core/manage-base64-encoding.html) blogpost, but I am not sure where Am I supposed to write this piece of code.
Can someone help me?
Initially you should chage you database model to save you binary image to db (also, it's still not good idea, but let leave it for a now):
public class Image
{
[Key]
public long ImagelId { get; set; }
[NotMapped]
public string Base64 { get; set; }
public byte[] Binary {get; set;}
[ForeignKey("CoreGoalId")]
public long CoreGoalId { get; set; }
public Image()
{
}
}
next you just should convert your image inside controller:
[HttpPost]
public IActionResult Create([FromBody] CoreGoal item)
{
if (item == null)
{
return BadRequest();
}
item.Binary = Convert.FromBase64String(item.Base64);
_coreGoalRepository.CreateCoreGoal(item);
return CreatedAtRoute("GetCoreGoal", new { id = item.CoreGoalId }, item);
}
BTW:you code still not good. It's not necessary to use Repository pattern with EF core (https://www.thereformedprogrammer.net/is-the-repository-pattern-useful-with-entity-framework-core/). And you should introduce two model layers: public layer and model layer. You shouldn't expose EF Core contract to outside.
I am new in MVC. I am working on a project where i have created a model class and also context class which is working good if i view the record in normal view.
but if i try to get the data in group by "Series_Name" and bind it into same model class it gives error. here is my code
Here is Model class and DBContextClass
[Table("tblvideo")]
public class TVSerial
{
[Key]
public Int64 Video_ID { get; set; }
public string Series_Name { get; set; }
public string Season_No { get; set; }
public string Episode_No { get; set; }
public string Episode_Name { get; set; }
public string Time_Duration { get; set; }
public string File_Url_480p { get; set; }
public string File_Url_720p { get; set; }
public string Description { get; set; }
public bool Is_Active { get; set; }
public string Image_Url_Small { get; set; }
public string Image_Url_Big { get; set; }
}
public class TvSerialContext : DbContext
{
public DbSet<TVSerial> TvSerials { get; set; }
}
Here is controller class:
public class TvSerialController : Controller
{
public ActionResult ListAllTvSerial()
{
try
{
TvSerialContext tvContext = new TvSerialContext();
List<TVSerial> tv = tvContext.TvSerials.ToList();
return View(tv);
}
catch (Exception ex)
{
return Content(ex.Message);
}
}
}
Above code works as expected, but if i am doing this :
public ActionResult ListAllSeason(string serial)
{
try
{
TvSerialContext tvContext = new TvSerialContext();
List<TVSerial> tv = tvContext.TvSerials.Where(tvs => tvs.Series_Name == serial).Distinct().ToList();
return View(tv);
}
catch (Exception ex)
{
return Content(ex.Message);
}
}
it return all rows , i just want single row from every series_name and custom field "Series_Name,Season_No,Image_Url_Big"
i don't know how to achieve this.
getting result :
Expected result:-
You could do this by creating a view model and using a .GroupBy() clause
public class TVSerialVM
{
public string SeriesName { get; set; }
public string SeasonNo { get; set; }
public string ImageUrl { get; set; }
}
and the query to project into your view model
List<TVSerialVM> model = tvContext.TvSerials.Where(t => t.Series_Name == serial)
.GroupBy(t => new { t.Series_Name, t.Season_No, t.Image_Url_Big })
.Select(t => new TVSerialVM
{
SeriesName = t.Key.Series_Name,
SeasonNo = t.Key.Season_No,
ImageUrl = t.Key.Image_Url_Big
}).ToList();
Side note: Your duplicating data in the database (the season number and the image url). You should consider moving the image urls to another table with a relationship to the season number.
The reason you are getting multiple values even though you are using distinct is the Distinct method does not know what "equal" is for TVSerial.
You can use Distinct with IEqualityComparer.
https://msdn.microsoft.com/en-us/library/vstudio/bb338049(v=vs.100).aspx
Distinct is not guaranteed to on custom objects it doesn't know what to compare. I have used this SO in the past to make my custom object work with Distinct.
Creating a distinct list of custom type in C#
When I try to create a controller by scaffolding, I get the following error:
Unable to retrieve metadata for 'TurkUp.Models.Admin.CreateCourseViewModel'. Schema specified is not valid. Errors:
The mapping of CLR type EDM is ambiguous because multiple CLR types match the EDM type 'Coursework'.
Here is the code for the model:
using System.ComponentModel.DataAnnotations;
using System.Web.Mvc;
namespace TorkUp.Models.Admin
{
public class CreateCourseViewModel
{
[HiddenInput(DisplayValue = false)]
public int Id { get; set; }
[Required]
public string Title { get; set; }
}
}
The custom data context class:
using System.Data.Entity;
using System.Linq;
using TorkUp.ClassLibrary;
using TorkUp.ClassLibrary.Admin;
using TorkUp.ClassLibrary.User;
namespace TorkUp.Infrastructure
{
public class UniversityDb : DbContext, IUniversityDataSource
{
public UniversityDb() : base("DefaultConnection") { }
// Admin data
public DbSet<Course> Courses { get; set; }
public DbSet<Class> Classes { get; set; }
public DbSet<Coursework> Courseworks { get; set; }
public DbSet<Student> Students { get; set; }
// User data
public DbSet<Assignment> Assignments { get; set; }
public DbSet<Task> Tasks { get; set; }
// Admin data
IQueryable<Course> IUniversityDataSource.Courses { get { return Courses; } }
IQueryable<Class> IUniversityDataSource.Classes { get { return Classes; } }
IQueryable<Coursework> IUniversityDataSource.Courseworks { get { return Courseworks; } }
IQueryable<Student> IUniversityDataSource.Students { get { return Students; } }
// User data
IQueryable<Assignment> IUniversityDataSource.Assignments { get { return Assignments; } }
IQueryable<Task> IUniversityDataSource.Tasks { get { return Tasks; } }
// Save to database
void IUniversityDataSource.Save() { SaveChanges(); }
}
}
And the class for the course:
using System.Collections.Generic;
namespace TorkUp.ClassLibrary.Admin
{
public class Course
{
public int Id { get; set; }
public string Title { get; set; }
public string Description { get; set; }
public ICollection<Class> Classes { get; set; }
public ICollection<Coursework> Courseworks { get; set; }
}
}
If you have this error, it is because in you DbContext:
// Admin data
public DbSet<Course> Courses { get; set; }
public DbSet<Class> Classes { get; set; }
public DbSet<Coursework> Courseworks { get; set; } //you use here Coursework class to create a DbSet. But when you scaffold you use CreateCourseViewModel.
public DbSet<Student> Students { get; set; }
If you want to use CreateCourseViewModel, then you have to change this line above. But I think as you put ViewModel suffix the purpose of CreatecourseViewModel is to wrap another classes for displaying in the view.