Question

How can I add an item to a repeatable property programmatically in c#:

let’s say I have a node (node id 1234) and in it companies list property, where each item has comapny name and image (media picker).

how do I add an item programmtically ?

Here’s what I have so far:

        XPathNodeIterator xpathIterator = umbraco.library.GetXmlNodeById(NodeId.ToString());
        XElement node = XElement.Parse(xpathIterator.Current.OuterXml);

        var list = node.Descendants(propertyAlias).FirstOrDefault();

        // how do I add items here ? something like:
        list.Descendants().Add(...)

thanks.

The package I’m referring to is:
Repeatable Custom Content

update:
I think the solution is to update the xml in umbraco.config.
I have the following xml in umbraco.config:

<Companies id="1176" parentID="1447" ...>
    <umbracoNaviHide>0</umbracoNaviHide>
    <companyList>
        <item>
          <data alias="title">Company1</data>
          <data alias="image" />
          <data alias="text" />
          <data alias="date" />
        </item>
        <item>
          <data alias="title">Company2</data>
          <data alias="image">1943</data>
          <data alias="text" />
          <data alias="date" />
        </item>
      </items>
    </companyList>
  </Companies>

I am able to update umbraco.config programmatically, but the results are not updated in the backend, so that when I publish the companies node again, the changes are deleted. How can I update the umbraco.config and publish the node ?
Maybe I sh should update the database directly instead ?

My code:

Document companiesDoc = new Document(COMPANIESNODEID);

        XmlDocument document = content.Instance.XmlContent;

        XmlNode n = document.SelectSingleNode("//Companies[@id=" + COMPANIESNODEID.ToString() + "]").SelectSingleNode("//items");


        XmlNode newItem = document.CreateNode(XmlNodeType.Element, "item", null);


        XmlNode dName = document.CreateNode(XmlNodeType.Element, "data", null);
        XmlAttribute xn = document.CreateAttribute("alias");
        xn.Value = "title";
        dName.Attributes.Append(xn);
        dName.InnerText = companyName;

        XmlNode dImage = document.CreateNode(XmlNodeType.Element, "data", null);
        XmlAttribute xi = document.CreateAttribute("alias");
        xi.Value = "image";
        dImage.Attributes.Append(xi);
        dImage.InnerText = companyImage;

        XmlNode dText = document.CreateNode(XmlNodeType.Element, "data", null);
        XmlAttribute xt = document.CreateAttribute("alias");
        xt.Value = "text";
        dText.Attributes.Append(xt);

        XmlNode dDate = document.CreateNode(XmlNodeType.Element, "data", null);
        XmlAttribute xd = document.CreateAttribute("alias");
        xd.Value = "date";
        dDate.Attributes.Append(xd);

        newItem.AppendChild(dName);
        newItem.AppendChild(dImage);
        newItem.AppendChild(dText);
        newItem.AppendChild(dDate);

        n.AppendChild(newItem);

Answer 1

I managed to solve the problem using this code:

var doc = new Document(COMPANIESNODEID);


        XDocument xdoc = XDocument.Parse(doc.getProperty("companyList").Value.ToString());

        xdoc.Element("items").Add(new XElement("item",
            new XElement("data", new XAttribute("alias", "title"), companyName),
            new XElement("data", new XAttribute("alias", "image"), companyImage)));

        doc.getProperty("companyList").Value = xdoc.ToString();


        doc.Save();

        doc.Publish(new User(0));
        umbraco.library.UpdateDocumentCache(doc.Id);