Re: ChartWrapper in Dashboard with remote data source

[asgallant]

When using Dashboards, you cannot use the refreshInterval to requery your data source.  You have to use the Query class to create a query and the setTimeout or setInterval js functions to resend the query.  You fetch the DataTable from the data returned by the query and pass it to the Dashboard object when you call the Dashboard's #draw method.  The Dashboard handles distributing data to all of the controls and charts bound in the Dashboard.

On Sunday, November 18, 2012 8:58:30 PM UTC-5, David Vine wrote:

Hi,

I'm trying to use ChartWrapper objects in a dahsboard with a remote data source and have the data refresh using refreshInterval.

In the docs it says:

Do not set its dataTable, query, dataSourceUrl and refreshInterval attributes explicitly.

c.f https://developers.google.com/chart/interactive/docs/gallery/controls#dashboardobject

My question is how do I set these if not explicitly? 

Thanks,

David

[David Vine]

Thanks asgallant!

After following your help I was able to get the query to run once after the initial onload callback. Setting the refreshinterval had no effect until I set it inside the call back handler for the first query. Not sure why that works but glad that it does...

[asgallant]

I should add as clarification, that the Query#setRefreshInterval method is what you should use here.  The reason it doesn't work in the ChartWrapper when using a Dashboard, is because the ChartWrapper doesn't have an internal query to refresh.