My dataTable for timeline chart like this:
dataTable.addColumn({ type: 'string', id: 'Term' }); -> just
number (ex. 1, 2, 3....)
dataTable.addColumn({ type: 'string', id: 'Name' });
dataTable.addColumn({ type: 'date', id: 'Start' });
dataTable.addColumn({ type: 'date', id: 'End' });
And I want to use ChartRangeFilter with Timeline chart like below image.
However, I can't display timeline chart with those errors :
One or more participants failed to draw()
The filter cannot operate on a column of type string. Column type must be
one of: number, date, datetime or timeofday. Column role must be domain,
and correlate to a continuous axis
To fix the errors, I excluded 'Term' and 'Name'.
Then the error message changed like this :
One or more participants failed to draw()
Invalid data table format: must have 3 or 4 data columns.
Timeline chart must have 3 or 5 data columns... So I tried to put 'Term' as
number, then the error changed like this again:
One or more participants failed to draw()
Invalid data table format: column #0 must be of type 'string'
...
...
Is there really no way to use the ChartRange filter and Timeline chart at
the same time?
I need help. Please..
+) I'm not a native English speaker... so I ask for your understanding.
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