How can i set segment default selected value ?

Hi  randomUser21 ,

For the slicer that comes with Power BI, we can not get it. But we can get the three point in the "Visualizations", and we click the "Get more visual":

Then we find the "Preselected Slicer" and add the visual to our Power Bi Desktop.

Here are the steps you can follow：

1. First , we need to create a table with one column , and the value is True and False, like this

2. Second , we can create a measure to define which the date we need to default preselected. If we need to default preselect then we return True else return False.

Flag =
var _date=
SELECTEDVALUE('Table'[Date])
var _today=TODAY()
var _min_date=
DATE(YEAR(_today),MONTH(_today),1)
return
IF(
    _date >= _min_date && _date<= _today,TRUE(),FALSE())

3. Then we can put the 'Table'[Date] in the Fields , [Flag] in the Pre Selection , 'Dirty Table'[Dirty Status] in the Dirty Status, like below screenshot:

4. Result:

Best Regards,

Liu Yang

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