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  • Simon 4 posts 95 karma points
    Feb 20, 2018 @ 14:59
    Simon
    1

    HasProperty and HasValue checking strongly typed models

    Hi,

    I am using the ModelsBuilder and using strongly typed syntax in my Views.

    I want to know the Strongly typed equivalent/best practice to using HasValue/HasProperty is.

    For a string property named 'projectTitle', I have used the following

    @if (!string.IsNullOrEmpty(Model.ProjectTitle))
{
   <h2>@Model.ProjectTitle</h2>
}

    But I am struggling trying to do similar for a Multinode Tree picker property named 'projectItems' as that returns a IEnumerable .

    I have ended up using this, which works, but this defeats object of using strongly typed

    @if (Model.HasValue("projectItems"))
{
    //do something
}

    What is best practice in this situation?

    Thanks Simon

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  • Dan Diplo 1554 posts 6205 karma points MVP 6x c-trib
    Feb 20, 2018 @ 15:23
    Dan Diplo
    102

    If Model.ProjectItems is of type IEnumerable then you can do:

    if (Model.ProjectItems != null && Model.ProjectItems.Any())
{
   // do something
}

    So basically you check it's not NULL and then you check if the sequence contains any items. The Any() method is an extension method within System.Linq namespace.

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  • Simon 4 posts 95 karma points
    Feb 20, 2018 @ 15:40
    Simon
    0

    Thanks Dan - that worked perfectly

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