Hi everyone, In the following JSON:
var data = new google.visualization.DataTable( { cols: [{id: 'Option1', label: 'Manufacturer', type: 'string'}, {id: 'Option2', label: 'Region', type: 'string'}, {id: 'Option3', label: 'Option3', type: 'number'}, {id: 'Option4', label: 'Option4', type: 'number'}, {id: 'Option5', label: 'Option5', type: 'number'}, {id: 'Option6', label: 'Option6', type: 'number'}, {id: 'Option7', label: 'Option7', type: 'number'}, {id: 'Option8', label: 'Option8', type: 'number'}], rows: [{c:[{v: 'Ford'}, {v: 'South East'}, {v: 2}, {v: 3}, {v: 4}, {v: 5}, {v: 6}, {v: 7}]}, {c:[{v: 'Ford'}, {v: 'South East'}, {v: 2}, {v: 3}, {v: 4}, {v: 5}, {v: 6}, {v: 7}]}, {c:[{v: 'Ford'}, {v: 'South East'}, {v: 2}, {v: 3}, {v: 4}, {v: 5}, {v: 6}, {v: 7}]}, {c:[{v: 'BMW'}, {v: 'South East'}, {v: 2}, {v: 3}, {v: 4}, {v: 5}, {v: 6}, {v: 7}]}, {c:[{v: 'BMW'}, {v: 'North'}, {v: 2}, {v: 3}, {v: 4}, {v: 5}, {v: 6}, {v: 7}]}, {c:[{v: 'BMW'}, {v: 'North'}, {v: 2}, {v: 3}, {v: 4}, {v: 5}, {v: 6}, {v: 7}]}, {c:[{v: 'Citroen'}, {v: 'North'}, {v: 2}, {v: 3}, {v: 4}, {v: 5}, {v: 6}, {v: 7}]}, {c:[{v: 'Citroen'}, {v: 'South East'}, {v: 2}, {v: 3}, {v: 4}, {v: 5}, {v: 6}, {v: 7}]} ] }, 0.6 ) my graph 'will' display the manufacturers as rows with 7 bars of data against each. I want to be able to filter the data using a dependent control in order to see just the rows in each region (column 1). At the current time this graph does not draw because the region column is not a integer and so it cannot be displayed. Therefore I want to 'hide' the region column so that it is not displayed as a bar, but is available for use with the dependent control. Can anyone help with this as I cannot find any way to do it? I don't think that the hideColumns method will work because that removes the column from the data object and there3fore the dependent control cannot see it. -- You received this message because you are subscribed to the Google Groups "Google Visualization API" group. To post to this group, send email to google-visualization-api@googlegroups.com. To unsubscribe from this group, send email to google-visualization-api+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-visualization-api?hl=en.