Calculated Column

Hi FZOU ,

According to my undertanding, you want to display all rows beginning with the first letter of the selected value in slicer, right?

As mentioned above, after creating a new table, please try the following measure:

Measure =
IF (
    LEFT ( MAX ( 'Table'[OLD] ), 1 )
        = LEFT ( SELECTEDVALUE ( 'New Table'[New] ), 1 ),
    1,
    0
)

And apply it to visual-filter pane, set as "=1" like this:

Here is the pbix file.

Best Regards,
Eyelyn Qin
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