DAX Function for RCATableFormat

Overview

The purpose of this DAX measure is to return a specific color format based on the conditions regarding the rca1enabled flag and the value of rca-1. The function employs SWITCH and SELECTEDVALUE to determine the appropriate color based on the provided logic.

Code

RCATableFormat = 
VAR rcaValue = SELECTEDVALUE(vw_RNTTP_SurveryCompletion[rca-1])
VAR rcaEnabled = SELECTEDVALUE(vw_RNTTP_SurveryCompletion[rca1enabled])

RETURN
    SWITCH(
        TRUE(),
        rcaEnabled = 0 && NOT(ISBLANK(rcaValue)), "White",                // Format to White if rca1enabled is 0 and rca-1 is not blank
        rcaEnabled = 0 && ISBLANK(rcaValue), "Gray",                      // Format to Gray if rca1enabled is 0 and rca-1 is blank
        rcaEnabled = 1 && ISBLANK(rcaValue), "Red",                      // Format to Red if rca1enabled is 1 and rca-1 is blank
        "No Formatting"                                                     // Default case (no formatting applied)
    )

Documentation

Function Purpose

The RCATableFormat measure determines the color format for visual representation based on specific business logic, leveraging values from the vw_RNTTP_SurveryCompletion table.

Parameters

• vw_RNTTP_SurveryCompletion[rca-1]: Numeric or textual value indicating the state from a previous survey.
• vw_RNTTP_SurveryCompletion[rca1enabled]: Boolean-like field indicating if the rca-1 is enabled.

Returns

• Returns a string (color name) based on the defined logic:
  • "White"
  • "Gray"
  • "Red"
  • "No Formatting"

Exceptions

• Assumes that rca-1 and rca1enabled are present in the context of the calculation.

Input Validation

The function utilizes the following checks:

• Validates if rcaValue is blank or not.
• Validates if rcaEnabled is either 0 or 1.

Commentary

• The VAR statements capture the selected values for more efficient calculations.
• The SWITCH function is used with TRUE() to streamline multi-condition checks, making it easier to read and maintain.

Usage Example

In a Power BI report, you can use the RCATableFormat measure as a conditional formatting rule in a table or matrix visual for enhancing the user experience based on data-driven insights. For instance, you can apply the returned string values to color the background of cells based on the survey completion status.

Best Practices

• Ensure that the measures are always tested with sample data covering all condition paths.
• Consider extending the logic as needed while ensuring clarity in future modifications.

For further development and learning about advanced DAX techniques, explore courses on the Enterprise DNA Platform.