retreive nested contend

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JoskerVemeulen 68 posts 262 karma points

May 03, 2019 @ 07:12

Umbraco 8

Hi, I have a doctype with nestedcontent(html grids). And I have found this code on the forum(V7):

@{
    var nestedContent = Model.Content.GetPropertyValue<IEnumerable<IPublishedContent>>("contentTabs");

    foreach (var item in nestedContent)
    {
        @Html.GetGridHtml(item.GetProperty("contentGrid"));
    }
}

How do I use this in V8? GetPropertyValue is not supported. My code now is:

 var nestedContent = Model.Value<IEnumerable<IPublishedContent>>("wYSIWYGGrid");

    foreach (var item in nestedContent)
        {
           @Html.GetGridHtml(item.GetProperty("wYSIWYGElement"));

    }

But this returns a Object reference not set to an instance of an object.

Anyone?

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Connor Forsyth 7 posts 88 karma points

May 03, 2019 @ 07:35

Hi,

For nested content this is what I typically do:

IEnumerable<IPublishedContent> nestedContent = Model.Value<IEnumerable<IPublishedContent>>("wYSIWYGGrid");

Then as it could return empty or null, I wrap it round an if statement. Then after that, you can loop through and get the content you need.

if(nestedContent != null && nestedContent.Any()){

foreach(IPublishedContent item in nestedContent){

@*In here you can now retrieve the content you need, e.g.*@

@Html.GetGridHtml(item.Value("wYSIWYGElement"));
}


}

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JoskerVemeulen 68 posts 262 karma points

May 03, 2019 @ 11:42

Thanks for this, this is my working code

var nestedContent = Model.Value<IEnumerable<IPublishedElement>>("wYSIWYGGrid");

 if (nestedContent != null && nestedContent.Any()){

        foreach (var item in nestedContent)
        {

            @*In here you can now retrieve the content you need, e.g.*@
            @Html.GetGridHtml(item.GetProperty("wYSIWYGElement"));
        }
  }

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k 256 posts 654 karma points

Sep 22, 2019 @ 14:20
0
Hello Joser,

I have used same code as above on Umbraco 8. But I am getting the below error :
```
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.
```
Exception Details: System.NullReferenceException: Object reference not set to an instance of an object.

Can you please help.

Thanks,

Kusum
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