Hi everyone,

I have a blog running, which works with a macro. Now I only wanted to add another small post overview, but this doesn't work.

Here is, what I have. First, this is the code which calls the 2 macros:

<section class="section align-left">
<div class="container col-sm-10">
        @Umbraco.RenderMacro("latestBlogposts",
                     new
                     {
                         numberOfPosts = Html.Raw(Umbraco.Field("noofposts").ToString()),
                         startNodeId = Model.Content.Id
                     })
</div>
<div class="container col-sm-2">
        @Umbraco.RenderMacro("latestBlogpostsmall",
                     new
                     {
                         numberOfPosts1 = Html.Raw(Umbraco.Field("noofposts").ToString()),
                         startNodeId1 = Model.Content.Id
                     })
</div>
</section>

This is the first macro, which is working:

@using ContentModels = Umbraco.Web.PublishedContentModels;
@using Umbraco.Web;
@inherits Umbraco.Web.Macros.PartialViewMacroPage
@{ 
    var startNodeId = Model.MacroParameters["startNodeId"] != null ? Model.MacroParameters["startNodeId"] : Model.Content.Id;
    var numberOfPosts = 100;
    if (Model.MacroParameters["numberOfPosts"] != null)
    {
        int.TryParse((string)Model.MacroParameters["numberOfPosts"], out numberOfPosts);
    }
 }
@if (startNodeId != null)
{
    @* Get the starting page *@
    var startNode = Umbraco.TypedContent(startNodeId);
    var blogposts = startNode.Children.OrderByDescending(x => x.CreateDate).Take(numberOfPosts);

    if (blogposts.Any())
    {
        foreach (ContentModels.Blogpost post in blogposts)
        {
        <section class="section align-center" style="padding: 40px 0 10px;">
            <div class="container">
                <div class="col-sm-6 align-center img-column">
                    @if(post.BlogImage != null){

                        <a href="@post.Url"><img src="@post.BlogImage.Url" /></a>
                    }
                </div>

                <div class="col-sm-6 align-left">
                    <article style="max-width: 480px;">
                        <h5>@post.PageTitle</h5>
                        <small class="blogpost-date">@post.CreateDate.ToShortDateString()</small>                       
                        <p>@post.Excerpt</p>
                        <a href="@post.Url" class="btn btn-outline-clr" style="margin: 30px 0 0">Read more</a>
                    </article>
                </div>
            </div>
        </section>
        }
    }
}

This is the second macro, which is throwing a YSOD with the message:

Exception Details: System.ArgumentNullException: Value cannot be null. Parameter name: child

@using ContentModels = Umbraco.Web.PublishedContentModels;
@using Umbraco.Web;
@inherits Umbraco.Web.Macros.PartialViewMacroPage
@{ 
    var startNodeId = Model.MacroParameters["startNodeId1"] != null ? Model.MacroParameters["startNodeId1"] : Model.Content.Id;
    var numberOfPosts = 100;
    if (Model.MacroParameters["numberOfPosts1"] != null)
    {
        int.TryParse((string)Model.MacroParameters["numberOfPosts1"], out numberOfPosts);
    }
 }
@if (startNodeId != null)
{
    @* Get the starting page *@
    var startNode = Umbraco.TypedContent(startNodeId);
    var blogposts = startNode.Children.OrderByDescending(x => x.CreateDate).Take(numberOfPosts);

    if (blogposts.Any())
    {
        foreach (ContentModels.Blogpost post in blogposts)
        {
        <section class="section align-center" style="padding: 0 !important;">
            <div class="container" style="padding: 0 !important;">
                <div class="align-left vl">
                    <article style="margin-bottom: 20px !important;">
                        <a href="@post.Url"><h6 style="margin: 0 !important;">@post.PageTitle</h6>
                        <small class="blogpost-date">@post.CreateDate.ToShortDateString()</small></a>
                    </article>
                </div>
            </div>
        </section>
        }
    }
}

With this line being marked red:

@Umbraco.RenderMacro("latestBlogpostsmall",

When I use the working "latestBlogposts", I have 2 blogs next to each other. I would be happy to get a hint.

Thanks in advance, Simeon