Identifies a command that applies the underline text formatting to the selected text. If it's already applied, cancels it.
UNDERLINE_COMMAND Type: String
The UNDERLINE_COMMAND property can be used in the following ways.
In the ASPxClientHtmlEditor.CommandExecuted event — to determine the toolbar or ribbon item clicked by an end-user. If the ASPxClientHtmlEditorCommandEventArgs.commandName event parameter returns the UNDERLINE_COMMAND property value, this means that either the ToolbarUnderlineButton toolbar item or the HEUnderlineRibbonCommand ribbon item (depending upon the toolbar mode used) has been manipulated by an end-user.
In the ASPxClientHtmlEditor.ExecuteCommand method — to execute the command manually.
This command is available only in the Design View.