get value definied in umbraco cms in project class - Using Umbraco and getting started

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Adam Wróbel 1 post 71 karma points

May 17, 2022 @ 15:55

Get value definied in Umbraco CMS on C# method level

Hello everyone 👋

A few hours ago I started my adventure with Umbraco (and so far everything has been great) and I have come to the point where I need to use the declared value with Umbraco CMS on c# method level:

public class WeatherViewComponent : ViewComponent
{
    public IViewComponentResult Invoke()
    {
        //get city name definied in Umbraco CMS
        var city = ???;

        var weather = getWeather(city);
        return View("Default",weather);
    }
}

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In documentation, I read about IPublisdehContent and I try do something like this :

public class WeatherViewComponent : ViewComponent
{
    private readonly IPublishedContent _publishedContent;

    public TwitterViewComponent(IPublishedContent publishedContent)
    {
        _publishedContent = publishedContent;
    }

    public IViewComponentResult Invoke()
    {
        var city = _publishedContent.Value("city");

        var weather = getWeather(city);
        return View("Default",weather);
    }
}

But in this case i got error Unable to resolve service for type 'Umbraco.Cms.Core.Models.PublishedContent.IPublishedContent'

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Paul Seal 524 posts 2889 karma points MVP 7x c-trib

May 17, 2022 @ 22:03

I think you might have over complicated it slightly. Try doing this:

public class WeatherViewComponent : ViewComponent
{
    [ViewComponent(Name = "Weather")]
    public IViewComponentResult Invoke(IPublishedContent content)
    {
        var city = content.Value<string>("city");

        var weather = getWeather(city);
        return View("Default",weather);
    }
}