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### A.2.2 Current Table Properties panel

The Current Table Properties panel on the right hand side of the Control Window contains a number of controls which relate to the currently selected table and its Apparent properties; they will be blank if no table is selected. Here is what the individual items mean:

Label
  The short name associated with the selected table. It is used in the Table List panel and in labelling view windows so you can see which table they refer to. It usually set initially according to where the table came from, but you can change it by typing into the text field.
Location
  The original source of the selected table. This is typically a filename or URL (perhaps abbreviated), but may be something else depending on where the table came from.
Name
  A name associated with the selected table. This may be derived from the table's filename if it had one or from some naming string stored within the table metadata.
Rows
  The number of rows in the selected table. If the current Row Subset does not include all the rows, then an indication of how many are visible within that subset will be given too. In certain circumstances, some other information may be presented here: the table metadata may contain a flag indicating that an error or overflow occurred when generating the result of a (VO) query. In particular, if the text "OVERFLOW" appears, it means that you may not have got all the rows that you asked for because of size limits applied by the service. (In technical terms: the content of non-`OK` `INFO/@name="QUERY_STATUS"` VOTable nodes is summarised here, in accordance with the DALI standard).
Columns
  The number of columns in the selected table. If some are currently hidden (not included in the current Column Set), an indication of how many are visible will be given too.
Sort Order
  The columns or expressions (if any) which determine the current Row Order. Selectors show the values (if any) on which the rows of the Apparent Table are sorted. The little arrow beside it indicates whether the sort is ascending () or descending (). The Add button () can be used to add more selectors; ones further right are used only if several rows have the same value for expressions to the left. The Remove button if present can be used to remove the currently least-significant selector.
Row Subset
  The name of the current Row Subset. A selector shows the name of the subset which determines which rows are part of the Apparent Table and allows you to choose another one. "All" indicates that all rows are included. If you select a new value using this selector, then other windows which display subset-sensitive information for the current table will change their displayed subset to the newly-selected one. However the reverse does not happen - you can change the visible subset in the statistics window for instance or one of the graphics windows and it will not affect the value displayed here.
Activation Actions
  Summarises the currently available and active Activation Actions. A value of the form active-count / available-count is displayed, where active-count is the number of actions that currently take place whenever a row is activated, and available-count is the number of actions that could be made active without any additional configuration (a number of other actions could probably be used too, but require some manual setup). You can view and configure the activation actions by using the Activation Actions toolbar button to open the Activation Window.

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TOPCAT - Tool for OPerations on Catalogues And Tables
Starlink User Note253
TOPCAT web page: http://www.starlink.ac.uk/topcat/
Author email: m.b.taylor@bristol.ac.uk
Mailing list: topcat-user@jiscmail.ac.uk