C#•2y ago

✅ Passing data from controller to view

Hi guys hoping for some help here. I have an eCommerce wep app using ASP.NET MVC (7.0) and I want to pass data from a controller to a view. Now I understand I can do this with the ViewBag dynamic property or strongly typed view models. The data I want pass belongs to another model entirely and not the model for which the View is for. I have a Game model which has 2 FK's Developer and Publisher - within my create() View for the Game Model I wish to have a drop down list of Developers in the database to select from. How do I achieve this? Been stuck on this step for a while now and I'm still very new to .NET. I thought I could do something like this:

                        <div class="form-group">
                         <label asp-for="DeveloperId" class="control-label"></label>
                        <select asp-for="DeveloperId" class="form-control" asp-items="ViewBag.Developer"></select>
                         <span asp-validation-for="DeveloperId" class="text-danger"></span>
                        </div>

                        <div class="form-group">
                         <label asp-for="DeveloperId" class="control-label"></label>
                        <select asp-for="DeveloperId" class="form-control" asp-items="ViewBag.Developer"></select>
                         <span asp-validation-for="DeveloperId" class="text-danger"></span>
                        </div>

Any help is greatly appreciated, thank you.

5 Replies

Angius•2y ago

Use strongly-typed models. Always and forever. Use a DTO if needed

Larsa•2y ago

I need to do create a method in my Developer controller that can do this?

Angius•2y ago

I guess you could have the model be some

class ViewModel
{
    public GetData? GetData { get; set; }
    public PostData? PostData { get; set; }
}

class ViewModel
{
    public GetData? GetData { get; set; }
    public PostData? PostData { get; set; }
}

That way the view will have only one @model You can send the data inside of the GetData property And bind the form to PostData Or you could maybe place your form inside of a partial, that would let you use a different model for it

Larsa•2y ago

Hmm ok - might have to research a little bit to figure out how to do that. Thank you for the suggestions 😊

Accord•2y ago

Was this issue resolved? If so, run /close - otherwise I will mark this as stale and this post will be archived until there is new activity.

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✅ Passing data from controller to view