Sep 29, 2016

List with Paging on the Bottom Control Template

One of our customers wanted to use the List with Paging control display template on their news page. For some strange reason this template positions the paging in the top right corner of the web part instead of at the bottom of the list, and preferably horizontally in the center.

I fugured there were two options to do this:
1) Use CSS only (usually my preferred way)
2) Create your own display template for the purpose

Now the problem with approach #1 is that there are other content search web parts on the page too, so if you make general rules to create space at the bottom of the, this will be applied to all of those CSWPs. There is no special CSS class to hook into in the paging template ul. So even at best, this approach is a bit of a hack because in order to target it properly, you would need to use some container identifier and thus cause the whole hack to break if the web part is moved to a different zone on the page.

Number 2 seems easy enough, though, and replicable, which is even better. I set to action, downloading the original Control_ListWithPaging.html template file and opening it for editing in Expression Web and saving it with a new name. 

First, I added another class to the element, in order to be able to target rules only to the CSWPs using my new template. Small enough change, don't you think? 

<ul class="cbs-List pagingbtm">

Of course I also changed the title of the html document to List with Paging on the Bottom.

<title>List with Paging on the Bottom</title>

No biggie, right? I then uploaded the file, just to check that it works. Which it didn't! This puzzled me immensely, especially since the error message said, that the div, body and html tags have not been closed. They are not closed in the original control template (at least not when I opened it in notepad to check) but that works fine. 

So fine, I closed those tags at the end of my new template file. The error message disappeared and instead my template worked perfectly. Well, almost. The little arrow icons weren't visible but at least there was no error anymore. I decided to ignore that for the time being and finalize my control template changes. 

As said, I could've done it all in CSS only (after adding the new class), but I decided to make one more minor change in html to make the css shorter and less vulnerable and avoid the extra space when there are less items than the paging limit. I moved the resultset to the beginning of the list, so that the paging became the last node instead of the first one.

The results are displayed by this variable:
_#= ctx.RenderGroups(ctx) =#_

It is originally right before the closing ul tag. By simply moving it right after the opening ul tag, the order is reversed.
<ul class="cbs-List pagingbtm>
_#= ctx.RenderGroups(ctx) =#_

When this was done and tested, I started looking into that arrow icon issue. Quirkily, the img src was pointing to a nonexistent file on my own computer! This can be blamed on Expression Web. It's a first, though! I'm quite used to SharePoint Designer pulling off sh*t like this, but Expression Web has generally been a very reliable editor and loyal to the original code. Not this time. 

I opened the original file in notepad and sure enough, the correct source string was there, intact. 

<img class="_#= $htmlEncode(nextPageImageClassName) =#_" alt="_#= $htmlEncode(lastPage.title) =#_" src="_#= $urlHtmlEncode(GetThemedImageUrl('spcommon.png')) =#_">

So I copied and pasted it to my template and all was well in SharePoint Land again.

Here's the CSS: {
    text-align: center;
} .ms-promlink-headerNav {
    float: none;
    margin-top: 6px;


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Lakshman said...
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