Web Defaults

You can configure default settings for the Web UI using the Deephaven configuration file. See Create a Deephaven configuration file for details.

To configure a default setting:

1. Set the value of a config property in the configuration file.
2. Add the property name to client.configuration.list. This is a comma-separated list of property names that the Web UI will recognize and use for configuration. You can find the default list in the dh-defaults.prop file (line 68).

For example:

# Add `timeZone` and `dateTimeFormat` properties to the list.
client.configuration.list=timeZone,dateTimeFormat,java.version,deephaven.version,barrage.version,groovy.version,python.version,http.session.durationMs,file.separator,web.storage.layout.directory,web.storage.notebook.directory,web.webgl,web.webgl.editable,web.flattenViewports

# Define default values for the properties
timeZone=America/Chicago
dateTimeFormat=yyyy-MM-dd HH:mm:ss

Configuration properties correspond to UI fields in the Settings UI.

Default format and time zone properties

Label	Field	Server prop
Time zone	Select	timeZone
DateTime	Select	dateTimeFormat
	Show time zone in dates	showTimeZone
	Show 'T' separator	showTSeparator
Decimal	Input	decimalFormat
Integer	Input	integerFormat
	Show truncated numbers as ###	truncateNumbersWithPound
String	Show empty strings as empty	showEmptyStrings
	Show null strings as null	showNullStrings
Rollup	Show extra "group" column	showExtraGroupColumn

Advanced properties

Field	Server prop (value)	Server prop (editable)
Enable WebGL	web.webgl	web.webgl.editable

Related documentation

• Set date-time format
• Create a Deephaven configuration file