Creating a Parameter Control to Sort By Dimension W hen you try to sort based on a dimension , Tableau sorts the values of that dimension within the categories specified to its left in the shelf. For example, if you had two rows with the same value for [Number] and [Date Generated], but with different values for [Importance], clicking on the "Sort" icon over [Importance] in the table would re-arrange the two rows either ascending alphabetically or descending alphabetically by the value of [Importance], but without changing the order of the numbers or dates. The below steps are based on Sample - Superstore data. Step 1: Create a parameter Right-click in the Data pane and select Create Parameter. In the Create Parameter dialog, do the following, then click OK: Name: Sort By Data Type: String Allowable Values: List For Value, enter the following list: Category, Sub-Category, Product Name and Region. Right-click the Sort By parameter and selec...