Revert "Revert "Merge pull request #2118 from TechnologyEnhancedLearning/Develop/Fixes/TD-2371_space_seen_instead_of_graph_for_short_date_range_in_course_usage_screen""

This reverts commit 8242a56.

Author: kevwhitt-hee

DigitalLearningSolutions.Web/Scripts/chartCommon.ts

@@ -153,8 +153,10 @@ function getViewMoreLink() {
 export function setUpToggleActivityRowsButton() {
   const viewMoreLink = getViewMoreLink();
 
-  viewMoreLink.addEventListener('click', (event) => {
-    event.preventDefault();
-    toggleVisibleActivityRows();
-  });
+  if (viewMoreLink != null) {
+    viewMoreLink.addEventListener('click', (event) => {
+      event.preventDefault();
+      toggleVisibleActivityRows();
+    });
+  }
 }

DigitalLearningSolutions.Web/Views/SuperAdmin/PlatformReports/_CourseActivityTable.cshtml

@@ -46,11 +46,14 @@
     </tbody>
 </table>
 
-<div class="nhsuk-u-margin-top-4">
-    <a id="@(toggleableActivityButtonId)"
+@if (Model.Rows.Count() > defaultNumOfRowsVisible)
+{
+    <div class="nhsuk-u-margin-top-4">
+        <a id="@(toggleableActivityButtonId)"
        role="button"
        class="nhsuk-u-margin-top-4 js-only-inline"
        href="#">
-        View more
-    </a>
-</div>
+            View more
+        </a>
+    </div>
+}