CODEWITHSUNDEEP
sharepointcsom
Alex
Alex

Reputation: 25

Remove field reference from content type programmatically (CSOM)

the title says it all. how can i programmatically remove a field reference from a content type?

what i've tried so far:

    public void RemoveField(ClientContext ctx, Web web, ContentType type, Field field) // doesnt do anything
    {
        try
        {
            FieldLinkCollection fields = type.FieldLinks;
            FieldLink remove_field = fields.GetById(field.Id);
            remove_field.DeleteObject();
            ctx.ExecuteQuery();
        }
        catch (Exception ex)
        {
            throw ex;
        }
    }

this doesnt do anything (also no exception).

i've found another way in a forum:

contentType.FieldLinks.Delete(field.Title);
contentType.Update();

but the Delete(field.Title) method doesnt seem to exist in the CSOM.

thx

Upvotes: 2

Views: 4170

Answers (2)

Alex
Alex

Reputation: 25

my final working code:

    public void RemoveField(ClientContext ctx, Web web, ContentType type, Field field) // doesnt do anything
    {
        try
        {
            FieldLinkCollection flinks = type.FieldLinks;
            FieldLink remove_flink = flinks.GetById(field.Id);
            remove_flink.DeleteObject();
            type.Update(true);
            ctx.ExecuteQuery();
        }
        catch (Exception ex)
        {
            throw ex;
        }

Upvotes: 0

Vadim Gremyachev
Vadim Gremyachev

Reputation: 59328

Since content type is being modified, the method for updating content type (ContentType.Update method) have to be explicitly invoked:

//the remaining code is omitted for clarity..
remove_field.DeleteObject();
ctx.Update(true);  //<-- update content type
ctx.ExecuteQuery();

The following example demonstrates how to delete site column from content type using CSOM

using (var ctx = new ClientContext(webUri))
{

    var contentType = ctx.Site.RootWeb.ContentTypes.GetById(ctId);
    var fieldLinks = contentType.FieldLinks;
    var fieldLinkToRemove = fieldLinks.GetById(fieldId);
    fieldLinkToRemove.DeleteObject();
    contentType.Update(true); //push changes
    ctx.ExecuteQuery();
}

Upvotes: 3

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