How to use generic types in mvc model view

Question

I want to create a partial view which will be used several times with differents entities.

It seems that the way to do that is to implement interfaces and use generic types. But after a lot of search I still doesn't understand how to use that in my case.

My starting code :

public interface IEntity
{
    string Title { get; set; }
    string TextToDisplay { get; set; }
}
public class MainViewModel
{
    public Vehicule Vehicule{ get; set; }
    public Sector Sector{ get; set; }
}
public class Vehicule:IEntity
{
    public int Id{get;set;}
    public string Name{ get; set; }
}
public class Sector:IEntity
{
    public string Id{ get; set; }
    public string Name{ get; set; }
}

What I saw is that the model of the partial view will look that :

@model GenericModelType<IEntity>

But now, what would the structure of GenericModelType and how to render partial view (what parameter to put in @Html.RenderPartial("_PartialView",?????)

Thanks in advance

Your classes won't compile. Nothing in them is 'generic'. You didn't post `GenericModelType<>`. — H H, Sep 22 '18 at 13:45

Mojtaba Tajik · Answer 1 · 2018-09-22T10:22:59.317

0

Your model should be :

@model IEntity

and your render code :

@Html.RenderPartial("_PartialView", model);

To determine model type you can use "is" keyword :

if (model is Sector)
    // Do something

Here is good example for review.

edited Sep 22 '18 at 10:22

answered Sep 22 '18 at 09:54

Mojtaba Tajik

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MMhh, in this case, how my partial view knows that it's a `Vehicule` or `Sector` ? – Manta Sep 22 '18 at 10:06

How to use generic types in mvc model view

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