How to get value from paragraph item field?

Bjarne Rosendal

Posted on 06/02/2015 14:57:01

Do any of you guys have any experience of retrieving values from paragraph item fields using ItemManager.Storage.GetById?

I created an item type with system name SortedNewsList and one field called Dato (of type Date). This item type is only enabled for paragraphs:

http://screencast.com/t/MlDjqfmzfnMf

Now, I am using a Razor template for a news list to retrieve the value of the Dato field.

The context of the news list module rendering is a paragraph that is an instance of my paragraph item type just described.

The first lines of my Razor template look like this:

@{
var pageview = Dynamicweb.Frontend.PageView.Current();
var id = pageview.CurrentParagraph.ID;

var item = Dynamicweb.Content.Items.ItemManager.Storage.GetById("SortedNewsList", id.ToString());
var date = item["Dato"];
}

The first two lines are allright. The id variable holds the ID of the current paragraph.

Then I want to use that ID to retrieve the item ( line 3 ) and get the value of the Dato field ( line 4).

But when I try to render @date in the markup, I just get a null reference exception.

Replies

Jonas Mersholm

Posted on 06/02/2015 16:09:20

What is the indexcount in the item array? Is it simply 0 or are there actually elements in there?

If there is, could you try to iterate over them and check the key/value?

Mikkel Ricky

Posted on 06/02/2015 16:33:35

This post has been marked as an answer

You have to use an item id to get your item rather than the paragraph id:

@{
var paragraph = Pageview.CurrentParagraph;
if (paragraph != null && paragraph.ItemType != null && paragraph.ItemId != null) {
  var item = Dynamicweb.Content.Items.ItemManager.Storage.GetById(paragraph.ItemType, paragraph.ItemId);
  <pre>@Newtonsoft.Json.JsonConvert.SerializeObject(item, Newtonsoft.Json.Formatting.Indented)</pre>
}
}

Best regards,
Mikkel

Votes for this answer: 1

Bjarne Rosendal

Posted on 09/02/2015 11:04:55

Thanks Mikkel, that did the trick! :)

Hans Ravnsfjall

Posted on 19/03/2019 09:25:38

Similar to this, I want to get the value of an item field - called "Image" - and is located on page ItemType called "NewsEditor", and I want to do this when I am on a PageItem called "NewsItem"

How can this be done?

/Hans

Nicolai Pedersen

Posted on 19/03/2019 12:42:42

Hi Hans

You can use the PageService to get the page by id and then access the Item property on the page instance: https://doc.dynamicweb.com/api/html/7a6e654f-5c75-9547-2cad-664e9dbc2672.htm

If you do not have a page, but an item id you can do like this:

var item = Dynamicweb.Content.Items.ItemManager.Storage.GetById("NewsEditor", "123");

BR Nicolai

Hans Ravnsfjall

Posted on 19/03/2019 13:23:25

Hi Nicolai

Thanx for your reply. Tried this, but outputting the variable item gives me this string "Dynamicweb.Content.Items.Item"

Is that correct? How do I fetch the value of a specific field on the Item I am fetching?

/Hans

Nicolai Pedersen

Posted on 19/03/2019 13:49:18

This post has been marked as an answer

Hi Hans

Like this:

var somevariable = item["FieldSystemName"];

BR Nicolai

Votes for this answer: 1

Hans Ravnsfjall

Posted on 19/03/2019 14:02:53

Brilliant Nicolai :)

That is exactly what i Need

Thank you very mutch

/Hans

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How to get value from paragraph item field?

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