count function within macro partial view

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Lance Swan 3 posts 73 karma points

Feb 18, 2016 @ 17:05

I am trying to use the Count() function on a set of Children pages but am receiving an "Error loading Partial View" error. I'd like to set the Count() as a variable so I may use it in my html output. This is the code I have within the editor in Partial View Macro Files.

@inherits Umbraco.Web.Macros.PartialViewMacroPage

@{
    var selection = CurrentPage.Children.Where("Visible").OrderBy("CreateDate desc");
    var selectioncount = selection.Count();
}

<h3>There are @selectioncount items</h3>
@foreach (var item in selection)
{
<div class="row">
    <a href="@item.Url" title="Read @item.articleTitle"><img src="@Umbraco.Media(@item.articleImage).Url" alt="Crosley Radio"/></a>
    <div>
        <div>
            @Umbraco.RenderMacro("displayAuthor", new {authorName = @item.author})
            <h3>@item.articleTitle</h3>
            <span class="meta">@item.CreateDate.ToString("MMMM dd, yyyy") | Category</span>
            <p>@Umbraco.Truncate((@item.articleBody),100)</p>
            <a class="readmore" href="@item.Url">Read More..</a>
        </div>
    </div>
</div>
<hr />
}

If I remove the selectioncount var and h3 line, the page renders fine, so it is clearly the Count() function that is giving me the error. I'm sure I am overlooking something simple as I am new to Umbraco. Thanks!

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Dennis Aaen 4500 posts 18255 karma points admin hq c-trib

Feb 18, 2016 @ 17:51

Hi Lance and welcome to our :-)

Could you please try the code snippet below and see if this works for you.

@{
    var selection = CurrentPage.Children.Where("Visible").OrderBy("CreateDate desc");
    var selectioncount = selection.Count();
}

<h3>There are @selectioncount items</h3>
@foreach (var item in selection)
{
<div class="row">
    <a href="@item.Url" title="Read @item.articleTitle">
    <img src="@Umbraco.Media(item.articleImage.ToString()).Url" alt="Crosley Radio"/></a>
    <div>
        <div>
            @Umbraco.RenderMacro("displayAuthor", new {authorName = @item.author})
            <h3>@item.articleTitle</h3>
            <span class="meta">@item.CreateDate.ToString("MMMM dd, yyyy") | Category</span>
            <p>@Umbraco.Truncate((@item.articleBody),100)</p>
            <a class="readmore" href="@item.Url">Read More..</a>
        </div>
    </div>
</div>
<hr />
}

Hope this helps,

/Dennis

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Lance Swan 3 posts 73 karma points

Feb 18, 2016 @ 18:12
0
Thanks for your help. Your snippet yielded the same error. In order to simplify my troubleshooting, I cannot even get this snippet to properly output the Count().
```
@inherits Umbraco.Web.Macros.PartialViewMacroPage

@{
    var selection = CurrentPage.Children.Where("Visible").OrderBy("CreateDate desc");
    var selectioncount = selection.Count();
}

<h3>There are @selectioncount items</h3>
```
Any other ideas?
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Kin 30 posts 172 karma points

Feb 19, 2016 @ 16:26

0

I just tried your simplified snippet on 7.3.8 and it didn't yield any errors.

Can you post the code of the page where you call your macro?

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