One approach that would work would be to move your associated data expression to the label property:
Then, you could use the method I developed for renaming alarm status table columns to change the column headers in the table:
if event.propertyName == 'componentRunning':
def getTable(statusTable):
for component in statusTable.getComponents():
if component.__class__.__name__ == 'AlarmStatusTable$1':
return component
else:
table = getTable(component)
if table:
return table
table = getTable(event.source)
tableHeader= table.tableHeader
columnModel = table.columnModel
for column in range(table.columnCount):
tableColumn = columnModel.getColumn(column)
if tableColumn.headerValue == 'Label':
tableColumn.setHeaderValue("Real Alarm Value")
elif tableColumn.headerValue == 'Event Value':
tableColumn.setHeaderValue("Tag Value")
tableHeader.repaint()
Result:
