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Optional [Required] for complex types

I am trying to customize my presentation model for a form that will collect information about people joining a team. The form should contain some information about the summary, then a list of 5 "team members" (each of which contains a name, email address and telephone), the first two of which will be required. For my verification, I would like this to be in separate fields, for example:

Person 1:
Name: (validation messaage)
Email: (validation message)
Phone: (validation message)

Person 2:
Name: (validation messaage)
Email: (validation message)
Phone: (validation message)

Person 3:
Name: 
Email:
Phone:

Person 4:
Name: 
Email:
Phone:

Person 5:
Name: 
Email: 
Phone:

The relevant part of my view model is currently:

[Required]
public TeamMember TeamMember1 { get; set; }

[Required]
public TeamMember TeamMember2 { get; set; }

public TeamMember TeamMember3 { get; set; }

public TeamMember TeamMember4 { get; set; }

public TeamMember TeamMember5 { get; set; }

therefore, in my opinion, I just write:

@Html.EditorFor(model=>model.TeamMember1)

@Html.EditorFor(model=>model.TeamMember2)

@Html.EditorFor(model=>model.TeamMember3)

@Html.EditorFor(model=>model.TeamMember4)

@Html.EditorFor(model=>model.TeamMember5)

The editor template is as follows:

@model MyProject.Models.TeamMember

<div class="editor-label">
    @Html.LabelFor(model => model.Name)
</div>
<div class="editor-field">
    @Html.EditorFor(model => model.Name)
    @Html.ValidationMessageFor(model => model.Name)
</div>

<div class="editor-label">
    @Html.LabelFor(model => model.Email)
</div>
<div class="editor-field">
    @Html.EditorFor(model => model.Email)
    @Html.ValidationMessageFor(model => model.Email)
</div>

<div class="editor-label">
    @Html.LabelFor(model => model.Phone)
</div>
<div class="editor-field">
    @Html.EditorFor(model => model.Phone)
    @Html.ValidationMessageFor(model => model.Phone)
</div>

, , - , ? RequiredAttribute [] TeamMember, , . , , , , ( ), .

.

+5
1

. , . TeamMember, .

protected override ValidationResult IsValid(object value, ValidationContext validationContext)
{
    //Retreive value of Name property
    var nameProperty = validationContext.ObjectType.GetProperty("Name");
    var namePropertyValue = (string)nameProperty.GetValue(validationContext.ObjectInstance, null);

    var propertyBeingValidatedValue = (string)value;

    //Validation logic
    if ((!string.IsNullOrEmpty(propertyBeingValidatedValue)) && (!string.IsNullOrEmpty(namePropertyValue)))
    {
        //returning null means everything is good.
        return null;
    }
    //return a message in any other case.
    return new ValidationResult("Validation Message");
}
+1

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