Hi Grant,

Without knowing the complete structure of your site and the available properties on your doc types then what I suggest might not be completely accurate. However, based on your example code it looks like you are trying to access a nested property called groupSections which should be defined on each child item in the @Model.Children collection ?

It might be possible that some of those child items don't have that property which could lead to the "object reference not set to an instance of an object" error.

It might be worth defending against this and checking if the groupSections property exists on each item before trying to access it. I think you can use the HasValue method to check if a property exists on an IPublishedContent object. Can you try the following

    @{
    var selection = Model.Children;

    <ul>
        @if (selection.Any())
        {
            foreach (var item in selection)
            {
                <li>@item.Name</li>
                if (item.HasValue("groupSections"))
                {
                    var groupSections = item.Value<IEnumerable<IPublishedContent>>("groupSections");
                    foreach (var groupSection in groupSections)
                    {
                        <li>@groupSection.Value("groupSectionName")</li>
                    }
                }
            }
        }
    </ul>
}

Thanks

Paul

Hi Paul,

same error unfortunately

trying to get the group name then a list of Group sections below thanks

Grant

Hi Paul the error has gone but ideally id like to render a groups page that will show all groups with their corresponding group sections each of them will link to a group specific page.

Thanks

Grant

Hi Grant,

Good to hear. You are probably going to need a nested foreach, one to loop through the children of the groups page and then another to loop through the nested content that is defined on the group children.

    @if (Model != null && Model.Children != null)
{
    var childGroups = Model.Children.Where(x => x.Level == 2);

    <ul>
        @if (childGroups != null && childGroups.Any())
        {
            foreach (var item in childGroups)
            {
                if (item != null)
                {
                    <li>@item.Name</li>

                    //process nested content on the group
                    if (item.HasValue("groupSections"))
                    {
                        var groupSections = item.Value<IEnumerable<IPublishedContent>>("groupSections");
                        if (groupSections != null && groupSections.Any())
                        {
                            foreach (var groupSection in groupSections)
                            {
                                if (groupSection != null)
                                {
                                    <li>@groupSection.Value("groupSectionName")</li>
                                }
                            }
                        }
                    }
                }
            }
        }
    </ul>
}

*code untested and needs to be on the groups razor template

Thanks

Paul

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