Global Search Types


Search requires Delta configuration. See the Delta Search documentation for details: Delta Search Documentation

Search Preset Cards

The search presets card at the home page allows the user to see the count of datasets for each type and select a specific type from the global types of Nexus. The same cards are also available on each global type page.

Search Preset cards in home page

Search Preset cards in seach page

Jump to Project

Projects matching the search criteria are listed below the search text from which you can instantly jump to the given project.


Where no explicit sort criteria has been applied, search results are ordered by their ElasticSearch relevance score. Sort criteria can be applied to one or more fields to customise the ordering of results in the table.

In order to sort on a specific field, open the field’s dropdown menu and select one of Sort Ascending or Sort Descending (highlighted below).

Field Sort

Upon selecting a sort direction the sorting criteria will be applied and the results will be updated immediately. Click the Clear button to remove the sorting criteria for the field. Sort criteria can be applied to several fields.


If a field does not support sorting then the sorting option will not be displayed.

A summary of the status of sorted columns is displayed at the top of the search results table.

Sort Summary

The Sort dialog shows all sort criteria currently applied to the search results (shown below).

Sort Summary Dialog

The sort direction can be changed here as well as removed entirely.


Filters allow you to filter the search results further. The field’s dropdown menu provides access to the filter options. In the example below, the filter options for the Brain Region field are highlighted.

Field Filtering

The Operator dropdown determines the type of filter operation and can be one of:

  • is all of (AND) - resource must have all selected filter criteria
  • is any of (OR) - resource must have one of the selected filter criteria
  • is none of (NOT) - resource must not have any of the selected filter criteria
  • is missing - resource must not have a value for the property

The list of filter values is displayed below the operator dropdown ordered by the terms that appear most frequently. The search box provides the ability to search for a specific filter term.

A summary showing the number of filters applied is displayed above the search results table. Clicking on it reveals the filter dialog (see below).

@@@ div { .center }Filter Summary Dialog@@@

The filter dialog lists all currently applied filters and provides the ability to remove a filter.

Numerical Filters

Columns with numerical values have some additional filters. The first is range selector which will allow you to limit the search to a range of values available in the column. Below the range selector, you can choose to see only “missing values” by checking the missing values check box.

In order to understand the data better, you can also use the minimum, maximum, average and sum of the values in the column. At the very bottom, you can see a histogram of the values. Histogram can be viewed in bar or line graph using a radio button.

Numerical Filters

Hidden Columns and Ordering

The search results table can be customised to display only the columns that you are interested in. The summary displaying the number of hidden columns is displayed at the top-left of the search results table (highlighted below).

Hidden Columns Summary

Click on the hidden columns summary to open the hidden columns and column order configuration dialog which is shown below.

Hidden Columns Dialog

Each available column to display in the search results is listed along with a toggle to show or hide the column. The (Show all Columns) option provides a convenient way to show all columns.

Column ordering

Columns can be reordered by clicking on the three vertical dots next to the column name and dragging to the desired location.

Hiding column using the Field menu

An individual column can also be hidden using the field menu’s Hide column option (highlighted below).

Hidden Columns Dialog


The search results table is paginated to allow for convenient browsing of the search results. The paging controls for navigating the pages of results along with page size options are displayed at the top-right of the search results table (highlighted below).


By default, the page size is set to match the number of rows that fit your screen. You can however use the pagination dropdown in order to select a different page size. If a page size with more results than fit the page is selected, a scrollbar will display enabling vertical scrolling of the results.

Reset Search Customisations

All customisations to the search results can be removed using the Reset option displayed above the search results table (highlighted in the screenshot below).


Search Configurations

A search configuration is a predefined, named combination of columns, sort options and filters. You can find these configurations in the Search Config dropdown on the top of the global search types page. Choosing a search config from the cards list will apply the config to the search table.

Search Configurations