dax 計算某一列重復出現次數

關鍵字數 = 
VAR KeyWord = "jpg"
VAR TextLine = [內容]

-- 執行：

VAR KeyWordLen = LEN( KeyWord )
VAR Positions = GENERATESERIES( 1 , LEN( TextLine ) , 1 )
VAR Result = ADDCOLUMNS( Positions , "IsFound" , MID( TextLine , [Value] , KeyWordLen ) = KeyWord )
RETURN COUNTROWS( FILTER( Result , [IsFound] ) )