You can do two things. First, you can register for 'statechange' events fired by your controls (see docs<http://code.google.com/apis/chart/interactive/docs/gallery/controls.html>). Then, when you receive one you can use setState() on the relevant controls to affect their selected value.
Also, if you are just interested in removing the 'Choose a value' option from the CategoryFilter controls you are using, there is a new undocumented option (I'm adding documentation now) 'ui.allowNone' to decide whether the control should allow the user not to choose any value or not. See demo at http://jsfiddle.net/5DqGA/ . When you set it to false, the 'Choose a value' option disappear and the control will always enforce the selection of at least one of the available values. Does this help? - R. On 23 January 2012 18:40, MrTik <[email protected]> wrote: > Hi, > > I have a page that has 4 controls connected to each other and then to > a graph. I was wondering if there is a way to select actual value from > the drop downs based on the previous selections and not "Choose a > value"? > > Has anyone tried this? > > Thanks. > > -- > You received this message because you are subscribed to the Google Groups > "Google Visualization API" group. > To post to this group, send email to > [email protected]. > To unsubscribe from this group, send email to > [email protected]. > For more options, visit this group at > http://groups.google.com/group/google-visualization-api?hl=en. > > -- You received this message because you are subscribed to the Google Groups "Google Visualization API" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/google-visualization-api?hl=en.
