Next Chain Method Calls You may have noticed a naming pattern with the methods used thus far. They all end with the Async suffix, which stands for asynchronous. Programming on the web involves communicating with servers, which usually take time to compute and return a value.
This allows you to chain method calls using an easy syntax.
Each method that ends with Async returns a Promise object, containing three methods: Both parameters are optional. First you switch to the "GDP per capita by region" sheet. After that has finished, you apply a range filter.
Once Tableau Server has applied the filter, you select some marks. UTC1, 1max: Inside of a then function it does a return of another Promise object. This ensures that the next link in the chain will not get run until the current link finishes. Notice how the result of an operation is handled. Similarly, the second then function gets a filterFieldName parameter, which is the name of the field for the filter that was just applied.
The code below intentionally causes an error to happen by leaving out some required parameters to the applyFilterAsync method: The dashboards themselves typically contain one or more worksheets.
This is why, in the API, the concept of "sheet" encompasses both worksheets and dashboards. Worksheet and dashboard objects do not have the same set of actions, however.
Worksheets are the only entry point for acting on both worksheet and dashboard objects. The code samples below illustrate how this works.
Alert Box. An alert box is often used if you want to make sure information comes through to the user. When an alert box pops up, the user will have to click "OK" to proceed.
message is an optional string of text you want to display in the alert dialog, or, alternatively, an object that is converted into a string and displayed. The alert dialog should be used for messages which do not require any response on the part of the user, other than the acknowledgement of the.
Sep 13, · A while back, I ran into a situation where I was trying to use the calculated columns feature in SharePoint to do some simple math using values in two lists. Between certain data types not being accessible, and also with trying to make a one to many relationship happen, this project was born.