Asp.net mvc对很多很多关系的看法

Question

Good day guys, I created few models that implement a many to many relationship; now I'm having problems correctly formatting/designing the 'Create and Edit' views. Here are my models:

Student Model

namespace HMS.Models
{
    [Table("Students", Schema ="Admission")]
    public class Students : Person
    {
        [Key]
        public int StudentId { get; set; }

        [Display(Name = "First Name")]
        public string FirstName { get; set; }

        [Display(Name = "Last Name")]
        public string LastName { get; set; }               

        // this associate a student with a list of guardian  
        public virtual ICollection<Guardian> Guardians { get; set; }
    }
}

Guardian Model

namespace HMS.Models
{
    [Table("Guardians", Schema ="Admission")]
    public class Students : Person
    {
        [Key]
        public int GuardianId { get; set; }

        [Display(Name = "First Name")]
        public string FirstName { get; set; }

        [Display(Name = "Last Name")]
        public string LastName { get; set; }               

        // this associate a student with a list of guardian  
        public virtual ICollection<Student> Students { get; set; }
    }
}

StudentGuardian Model

namespace HMS.Models
{
    [Table("StudentGuardian", Schema ="Admission")]
    public class Students : Person
    {
        [Key]
        public int Id { get; set; }

        [Display(Name = "Guardian Id")]
        [ForeignKey("GuardianId")]
        public int GuardianId { get; set; }

        [Display(Name = "Student Id")]
        [ForeignKey("StudentId")]
        public string StudentId { get; set; }               
    }
}

A student can have multiple guardians and a guardian multiple students. How do I format the 'Create' view to enter these related objects?

Answer 1

You can design UI as shown below.

Note : Here Guardians is a drop down where can be selected more than one Guardian by multiselecting.You have to use multiselecting dropdown for that.

You can read more about this here : Many to Many Relationship : a step by step View Model approach