System Conventions

Listing Pages

Listing Pages are used to display rows of existing records and as selection and navigation aids. Their purpose is facilitating management of a table or set of common records in the Historion Database. Working with data in Historion involves navigating between Listing Pages, which display record choices for selection and Detail Pages for adding new or making changes to existing records.

Listing Pages use some concepts for columns that are similar in nature to Microsoft Excel worksheets. Listing Pages however are not worksheets. They are accurately termed Data Grids which display records stored in the Historion database. Example Listing Pages include; the list of Equipment, the list of Premises and the list of Radiation Safety Training Courses (shown below).

Some Listing Pages allow selection of multiple rows at a time, such as for deleting purposes (using CTL or SHIFT as records are selected) as further outlined under Deleting Records below.

          Select ALL Cell                                                                 Data Grid                            Column Selector

       Home     Export       Delete                                                                                    Add       Back

Column Sorting

Listing Pages are sorted by a default order selected as most applicable to the content of the list and can be resorted by any column simply by clicking the column’s heading. Clicking the same column heading a second time reverses the direction of the sort order.

Select All Cell

The Select All Cell is available in some Listing Tabs. It is the first, blank column header of the data display grid in the tab and is activated simply by clicking on it.

If multi-select is available then the Listing Tab will also support the Select All function. Select all behaves the same way that Microsoft® Excel allows Select All by clicking on the top left cell; all rows in the tab are selected and show as highlighted.

The Select All feature is a time saving option so the user doesn’t have to individually select each row. The Dose Reports list tab, accessible from the [Imported] button in the Dosimetry ribbon tab, is an example of a tab where the Select All feature is available.

Column Selector Control

The Column Selector Control is accessed via a small button with icon representing columns that appears at the top right corner of the listing tab.

The purpose of the Column Selector Control is to allow customisation of the listing tab. Listing Tabs in Historion appear with a default set of columns. In some listing tabs an extended set of optional additional columns are made available for selection. The RSO may prefer a more limited set of columns than the default or may wish to add more where available.

When the Column Selector control is clicked the Column Selector Menu is shown with three choices;

Showing and Hiding Columns

The Column Selector is activated simply by clicking it. The column selector is available to all users for listing tab customisation. Columns are selected or deselected by clicking the Select Columns option and then clicking the tick box in front of the name of the column to include or exclude the column from the current listing tab;

Historion remembers which columns are selected by a specific User for display in a specific Listing Page. Column selection are saved for each user in the Historion database. This occurs as the Listing Page is closed. Each user’s Listing Page column selections are stored separately by User and the User’s saved column selections are reapplied to the tab each time the tab is opened.

The View> column cannot be hidden as this would interfere with normal tab navigation.

Re-ordering Columns

Listing tab columns can be relocated to the left or to the right of their default positions. To re-order columns drag the column heading with the left mouse key held down and drop the column heading to the left or right as required. Keep the mouse pointer within the header row while dragging the column;

Historion remembers the column order selected for display in a Listing Tab. The order of the Columns (not Rows) across the tab are retained.

In some more complex listing tabs, such as the Duplicates Dose Readings listing tab, which is accessible from the Dosimetry ribbon tab, the first two or three columns are locked. This is so that important record context is not lost when operating the different features in these tabs.

Restoring Default Columns

Column preferences for a listing tab can be reset to the system default. This is done via the Default Columns option in the Column Selector menu. Historion prompts for confirmation;

Note: restoring to defaults resets the list to all original column selections and  Column Order

Re-Sizing and Auto-Sizing Columns

Individual columns can be re-sized in listing tabs in the same way that columns are resized in Microsoft Excel; by selecting the line between the required column and the column next to it and dragging the column header to the required width; 

An automatic sizing feature is also available from the Column Selector;

As its name suggests the auto-size feature expands or contracts column widths to ensure that the data in each column fits neatly and can all be read. The following points explain some additional aspects of the column auto-sizing feature in Historion;

Listing tabs are not continually auto-sized each time they are opened. This is a design decision based on system performance and application responsiveness. Larger listing tabs with many columns and thousands of rows become slower and less responsive if the columns are auto-sized each time the list is opened as each cell is checked to ensure its data fits fully within the data grid displayed.

The very first time a listing tab is opened by a user and if the listing tab has data in it, Historion automatically auto-sizes the tab’s columns. This provides a good approximate for the column widths for Historion to display thereafter.

Over time as the data in the list grows the user can elect to use the automatic auto-size feature in the Column Selector to refresh the fit of the data in the listing tab’s data grid.

Auto-sized column widths are saved in Historion for each user and are re-applied each time the listing tab is opened, in the same way that column selections and column orders are saved and as though each column were individual resized by the user.

Auto-sizing the columns of a list tab does not affect the column selections or the column orders set by the user, it only adjusts the widths of columns already displayed.

Auto-sizing column widths replaces manually set columns widths.

Record Count Tooltip

Historion includes a record count tooltip which is displayed when a vertical scroll bar is selected;

The Record Count Tooltip is a convenience feature and is like the same feature seen in Microsoft Access sub form lists. A limitation of the record count tooltip is that it only appears when the number of records in the listing tab is enough to cause a vertical scrollbar to appear in the Listing Page selected.

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