Can I add a default value for a field on a page type?

Questions
1

I have a string field (array) and some values that should be as default when the page is created. Can I add default values to a string field in code definition?

Litium version: 6

2

You can set a default for a single string value in a code definition, see for example the LoginPage definition in the accelerator which use it for many properties:

[Property(PropertyCollectionTypes.CONTENT, typeof(StringShortProperty), IsMandatory = true, Group = "Glömt lösenord")]
[Translation("Text för länk tillbaka till inloggningssidan", "sv-se")]
[Translation("Text link back to login page", "en-us")]
[Default("Back to login page")]
public virtual string BackToLoginPageLinkText { get; set; }

If you want to set default values for a string array you can export your pagetype in backoffice, set values in the XML and then import again:

<?xml version="1.0" encoding="UTF-8"?>
<PageType Name="Article" CanBeArchived="true" CanBeVersioned="true" CanBeMovedToTrashcan="true" CanBeInMenu="true" CanBeInSiteMap="true" CanBeInVisitStatistics="true" CanBeLinkedTo="true" CanBePrinted="true" CanBeSearched="true" AutoArchiveWeeks="0" VersionsToKeep="30" EditableInGUI="true" EditPage="" CanDeletePageType="true" CanBeMasterPage="true" PageTypeCategory="0" PossibleChildPageTypes="NewsList,ProductListPage,Sections,SiteMap,Article" PossibleParentPageTypes="Article,SearchResult,StartPage" WebSites="*" UseSecureConnection="false">
  <Content>
    ...
    <StringShortProperty Index="6" Name="Test" IsArray="true" IsMandatory="false" ShowInGuide="true" Group="">
      <Values>
        <StringShortValue  Index="0">Test1</StringShortValue>
        <StringShortValue  Index="1">Test2</StringShortValue>
        <StringShortValue  Index="2">Test3</StringShortValue>
	  </Values>
    </StringShortProperty>
  </Content>
  ...
</PageType>

You can also set the values using a startup task to deploy it with code but outside of your pagetype definition:

public class ArticlePropertySetup : IStartupTask
{
	public void Start()
	{
		var articlePageType = ModuleCMS.Instance.PageTypes.GetPageType(nameof(Article));
		if (articlePageType == null)
			throw new ArgumentNullException(nameof(articlePageType));

		var property = articlePageType.Content[nameof(Article.StringArrayDefaultsTest)] as StringShortProperty;
		if (property == null)
			throw new Exception($"Property {nameof(Article.StringArrayDefaultsTest)} not found on pagetype {nameof(Article)}");

		property.SetValue(0, "Default value 1", Solution.Instance.SystemToken);
		property.SetValue(1, "Default value 2", Solution.Instance.SystemToken);
		property.SetValue(2, "Default value 3", Solution.Instance.SystemToken);
	}
}