i have a problem with my join in my asp.net .. i have two database tables.. named APPLICANT and Profile...they have the same fields.. meaning if the Last name in applicant is null the last name is already in profile table. I already connect my program to the applicant table.. but it have so many null fields that have to fetch from the profile data table.... sorry i'm new in asp.net ...
Here's my code in controller:
public View Result Index()
{
var applicants = (from a in db.APPLICANTs
select a).ToList();
return View(applicants);
}
heres my context:
public partial class APPLICANT
{
public int APPLICANT_ID { get; set; }
public Nullable<int> Profile_id { get; set; }
public string APPLICANT_LastName { get; set; }
public string APPLICANT_FirstName { get; set; }
public string APPLICANT_MiddleName { get; set; }
public string APPLICANT_Address { get; set; }
public string APPLICANT_City { get; set; }
public string APPLICANT_ZipCode { get; set; }
public string APPLICANT_Phone { get; set; }
public string APPLICANT_Email { get; set; }
}
public partial class Profile
{
public int PROFILE_ID { get; set; }
public string Applicant_LASTNAME { get; set; }
public string Applicant_FIRSTNAME { get; set; }
public string Applicant_MIDDLENAME { get; set; }
public string Applicant_EMAIL { get; set; }
public string Applicant_PHONE { get; set; }
public string Applicant_ADDRESS { get; set; }
public string Applicant_ZIPCODE { get; set; }
public string Applicant_CITY { get; set; }
}
thanks for those who can help my problem..
Related
I wonder if someone could help me please. I have a shopping basket which can contain products and each product can contain customers so for instance:
A basket contains the details of the 'purchaser' (FirstName, LastName, etc.) and
Product details (product name, date, etc.) and each product will have
Delegates (people actually attending the event....FirstName, LastName, etc.
What I'm trying to create is a form which shows all of the products with a list of fields underneath allowing the purchaser to enter/amend the names of the people that are attending the event:
What I'm struggling with though is to create the input fields for the attendees. I can use:
foreach(var dele in product.delegates)
{
<p>#dele.FirstName</p>
}
Which does display a list of the names of the attendees as expected but I would expect to be able to use something like:
for(var i=0, i < product.delegates.Count; i++)
{
#Html.TextBoxFor(x => x[i].FirstName)
}
But this displays the name (repeated) of the purchaser and not the attendees.
Could anyone assist please? Like I say I want to display a list of inputs that can amended and posted to an ActionResult to update the DB.
As a note I can see the model is populated with the information that I'm expecting.
public class ShoppingCart
{
public int ShoppingCartId { get; set; }
public DateTime Created { get; set; }
public string TransStatus { get; set; }
public bool Completed { get; set; }
public string ContactNumber { get; set; }
public string FirstName { get; set; }
public string LastName { get; set; }
public string Phone { get; set; }
public string Mobile { get; set; }
public string CompanyName { get; set; }
public string PostCode { get; set; }
public string Email { get; set; }
public string Address1 { get; set; }
public string Address2 { get; set; }
public string Address3 { get; set; }
public string City { get; set; }
public string County { get; set; }
public string StoreKey { get; set; }
public DateTime? SentToStore { get; set; }
public virtual ICollection<ShoppingCartProduct> Products { get; set; }
}
public class ShoppingCartProduct
{
public int ShoppingCartProductId { get; set; }
public int ShoppingCartId { get; set; }
public string ProductId { get; set; }
public string CourseId { get; set; }
public string ProductName { get; set; }
public string ProductType { get; set; }
public decimal ItemPrice { get; set; }
public string Location { get; set; }
public DateTime? EventDate { get; set; }
public int Quantity { get; set; }
public decimal TotalPrice => ItemPrice * Quantity;
public virtual ShoppingCart ShoppingCart { get; set; }
public virtual ICollection<ShoppingCartDelegate> delegates { get; set; }
}
public class ShoppingCartDelegate
{
public int ShoppingCartDelegateID { get; set; }
public string FirstName { get; set; }
public string LastName { get; set; }
public string email { get; set; }
public int ShoppingCartProductId { get; set; }
public virtual ShoppingCartProduct ShoppingCartProduct { get; set; }
}
Sorry buddy, it was me.....the objects were collections and not lists so I was never going to be able to iterate through them with an index. Sorted now. Thanks for you time :)
I'm trying to write a View Model in an ASP.NET MVC5 project to show data from different tables on a form that the user can then edit and save. I'm using the following :-
VS 2017, c#, MySQL Database, Entity Framework 6.1.3, MySQL Connector 6.9.9, Code First from Database (existing database that I can't change)
To complicate matters, there are no links between the tables in the database, so I cannot work out how to create a suitable View Model that will then allow me to save the changes.
Here are the 4 table models :-
public partial class evc_bearer
{
[Key]
[Column(Order = 0]
[DatabaseGenerated(DatabaseGeneratedOption.None)]
public long evcid { get; set; }
[Key]
[Column(Order = 1]
[DatabaseGenerated(DatabaseGeneratedOption.None)]
public long bearerid { get; set; }
public int vlan { get; set; }
[Column("ref")]
public string _ref { get; set; }
[Required]
public string port { get; set; }
[Required]
public string endpoint { get; set; }
}
public partial class bearer
{
[Key]
public long id { get; set; }
[Column("ref")]
[Required]
public string _ref { get; set; }
public string name { get; set; }
public long? site { get; set; }
public long? provider { get; set; }
public long? mtu { get; set; }
public float? rental { get; set; }
public int? offsiteprovider { get; set; }
public float? offsiteproviderrental { get; set; }
public bool? aend { get; set; }
public int? equipmentport { get; set; }
public string orderref { get; set; }
public string offsiteref { get; set; }
public string notes { get; set; }
public float? bookingfactor { get; set; }
}
public partial class evc
{
[Key]
public long id { get; set; }
[Required]
public string type { get; set; }
public byte servicetype { get; set; }
public byte cos { get; set; }
public int cir { get; set; }
public int pir { get; set; }
public bool burst { get; set; }
[Column("ref")]
public string _ref { get; set; }
public string orderref { get; set; }
public byte state { get; set; }
public string notes { get; set; }
public float? rental { get; set; }
}
public partial class evc_provider
{
[Key]
public long id { get; set; }
[Required]
public string provider { get; set; }
}
This is the View Model I tried writing :-
public partial class evcBearersVM
{
[Key]
[Column(Order = 0)]
public long evcid { get; set; }
[Key]
[Column(Order = 1)]
public long id { get; set; }
[Column("ref")]
public string b_ref { get; set; }
public string b_name { get; set; }
public string ep_provider { get; set; }
public int eb_vlan { get; set; }
public string eb_port { get; set; }
public string eb_endpoint { get; set; }
}
This is the Linq query I used to populate the View Model :-
IQueryable<evcBearersVM> data = from eb in csdb.evc_bearers
join b in csdb.bearers on eb.bearerid equals b.id
join ep in csdb.evc_providers on b.provider equals ep.id
join e in csdb.evcs on eb.evcid equals e.id
where (eb.evcid == evcid && b.id == id)
select new evcBearersVM
{
evcid = eb.evcid,
id = b.id,
b_ref = b._ref,
b_name = b.name,
ep_provider = ep.provider,
eb_vlan = eb.vlan,
eb_port = eb.port,
eb_endpoint = eb._ref
};
So the query works and joins the tables to get the data I need and I can display this date in various views as needed. What I now need to do is be able to edit a row and save it back to the database. I have an Edit View that is showing the data I need but I'm not sure how to save changes given that it's a View Model and the DB Context isn't aware of it. Grateful for any help.
What you should do is, use the same view model as your HttpPost action method parameter and inside the action method, read the entities you want to udpate using the Id's (you can get this from the view model, assuming your form is submitting those) and update only those properties you need to update.
[HttpPost]
public ActionResult Edit(evcBearersVM model)
{
var b = csdb.bearers.FirstOrDefault(a=>a.id==model.id);
if(b!=null)
{
b.name = model.b_name;
b._ref = model.b_ref;
csdb.SaveChanges();
}
// Update the other entity as well.
return RedirectToAction("Index");
}
I have a list which shows all the videos uploaded by Admin and Users, But I want to apply some condition to individually display User and Admin uploads list (just want to separate list on the basis of roles).
How can i do it?
This is the code which displays all the Videos
public ActionResult Index()
{
var videos = db.Videos.Include(v => v.Artist).Include(v => v.Category);
return View(videos.ToList());
}
Here is the video class
public class Video
{
public int Id { get; set; }
public virtual Category Category { get; set; }
public int CategoryId { get; set; }
public virtual Artist Artist { get; set; }
public int ArtistId { get; set; }
public string Title { get; set; }
public string Description { get; set; }
public string Length { get; set; }
public string Keywords { get; set; }
public string format { get; set; }
public string Language { get; set; }
public string URL { get; set; }
public string Image { get; set; }
public string UserId { get; set; }
public bool isblock { get; set; }
public virtual ApplicationUser ApplicationUser { get; set; }
public virtual ICollection<Comment> comments { get; set; }
public virtual ICollection<Like> likes { get; set; }
public virtual ICollection<HitCounter> Views { get; set; }
}
I'm learning ASP.NET MVC 4 with Entity Framework (Database First) and ran into a problem that I'm not able to solve.
I have following tables:
Student: To store students information
Course: To store courses running in an institute
StudentCourse: To store which student selected what course
Fees: To store submitted fees by a student corresponding to StudentCourse
Now, I wan't to show course name, course fees, total fees submitted & the pending fees of students
I'm using Entity Framework in the project and trying to execute a query like this:
var feeslist = entities.Fees
.Where(m => m.StudentCourse.status=="pending")
.GroupBy(m => m.StudentCourse.id)
.Select(m => new { StudentCourseId = m.Key, SumOfFees = m.Sum(v => v.fees) });
I want to get Course object instead of StudentCourseId so that i can display the course, its course fees and total fees submitted by student.
In case, I'm listing all of the four class contents:
Student
public partial class Student
{
public Student()
{
this.Leaves = new HashSet<Leave>();
this.StudentCourses = new HashSet<StudentCourse>();
}
public int id { get; set; }
public string first_name { get; set; }
public string middle_name { get; set; }
public string last_name { get; set; }
public string password { get; set; }
public string email { get; set; }
public string gender { get; set; }
public string facebook { get; set; }
public string contact_number { get; set; }
public string address { get; set; }
public string admin { get; set; }
public string college { get; set; }
public string status { get; set; }
public System.DateTime createdat { get; set; }
public System.DateTime updatedat { get; set; }
public string descripton { get; set; }
public virtual ICollection<Leave> Leaves { get; set; }
public virtual ICollection<StudentCourse> StudentCourses { get; set; }
}
Course
public partial class Course
{
public Course()
{
this.CourseContents = new HashSet<CourseContent>();
this.StudentCourses = new HashSet<StudentCourse>();
}
public int id { get; set; }
public string course_name { get; set; }
public int course_fees { get; set; }
public int duration { get; set; }
public string admin { get; set; }
public string status { get; set; }
public System.DateTime createdat { get; set; }
public System.DateTime updatedat { get; set; }
public virtual ICollection<CourseContent> CourseContents { get; set; }
public virtual ICollection<StudentCourse> StudentCourses { get; set; }
}
StudentCourse
public partial class StudentCourse
{
public StudentCourse()
{
this.Fees1 = new HashSet<Fee>();
this.Issues = new HashSet<Issue>();
}
public int id { get; set; }
public int student_id { get; set; }
public int course_id { get; set; }
public int fees { get; set; }
public System.DateTime join_date { get; set; }
public string admin { get; set; }
public System.DateTime createdat { get; set; }
public System.DateTime updatedat { get; set; }
public string status { get; set; }
public virtual Course Course { get; set; }
public virtual ICollection<Fee> Fees1 { get; set; }
public virtual ICollection<Issue> Issues { get; set; }
public virtual Student Student { get; set; }
}
Fee
public partial class Fee
{
public int id { get; set; }
public int student_course_id { get; set; }
public int fees { get; set; }
public string admin { get; set; }
public System.DateTime createdat { get; set; }
public System.DateTime updatedat { get; set; }
public virtual StudentCourse StudentCourse { get; set; }
}
var feeslist = entities.Fees
.Where(m => m.StudentCourse.status=="pending")
.GroupBy(m => m.StudentCourse.Course)
.Select(m => new { Course = m.Key, SumOfFees = m.Sum(v => v.fees) });
ASP .NET MVC4
Class #1:
public class F61BPROD
{
public int WPDOCO { get; set; }
public string WPDCTO { get; set; }
public string WPMCU { get; set; }
public string WPLOCN { get; set; }
public string WPDCT { get; set; }
public int WPTRDJ { get; set; }
public string WPKYPR { get; set; }
public string WPLITM { get; set; }
public decimal WPTRQT { get; set; }
public string WPKYFN { get; set; }
public string WPLOTN { get; set; }
public string WPLRP1 { get; set; }
public string WPLRP2 { get; set; }
public string WPLRP3 { get; set; }
public string WPLRP4 { get; set; }
public string WPLRP5 { get; set; }
public string WPLRP6 { get; set; }
public string WPLRP7 { get; set; }
public string WPLRP8 { get; set; }
public string WPLRP9 { get; set; }
public string WPLRP0 { get; set; }
public string WPFLAG { get; set; }
public string WPLOT1 { get; set; }
public string WPLOT2 { get; set; }
}
For one of the properties of Class #1 i need to fetch one of Class #2:
public class JDEItemBasic
{
public int itm { get; set; }
public string litm { get; set; }
public string dsc { get; set; }
public string dsce { get; set; }
public string ean14 { get; set; }
public string cc { get; set; }
public string uom1 { get; set; }
public string uom2 { get; set; }
public int uom1ea { get; set; }
public int bxuom1 { get; set; }
public int uom1gr { get; set; }
}
There is a DAL that gets the above classes. I need to combine these classes a new class that will have most of the properties of the above classes.
Should i create a third class and do the job in BLL?
or should i do it in UI using LINQ to Entities after i fetch them?
Should i create a third class and do the job in BLL?
or should i do it in UI using LINQ to Entities after i fetch them?
That would depend on where you need this class. If it is for displaying purposes then it should live in the UI. This class even has a name in this case: it's called a view model and is what your controller action could pass to the view after querying your DAL layer and projecting the various results to this view model.