Forum Discussion

Whatever1's avatar
Whatever1
Icon for Helper I rankHelper I
5 years ago
Solved

How to use a parameter in an expression in M

I want to dynamically change a variable and use it to filter rows.

 

let

   Variable = "ABC",

   Source = anything,

   #"Filtered Rows" = Table.SelectRows(source, each Text.Contains([FilterColumn], "ABC") )

in

#"Filtered Rows"

 

works where [FilterColumn] is a column returned in the source query.

 

What I want to do is something like:

#"Filtered Rows" = Table.SelectRows(source, each Text.Contains([FilterColumn], Variable) )

 

so I can change the variable based on something else and get different results.

 

However, nothing I try seems to work. There must be a way to dynamically build an expression. 

 

Amy Ideas?

 

   

  • Whatever1 ,

     

    How are you applying it ?

    I just tried it with a custom column and it worked.

    let _variable = "A" in
    
    Table.SelectRows(#"Changed Type", each Text.Contains([Value], _variable))

2 Replies

  • camargos88's avatar
    camargos88
    Icon for Community Champion rankCommunity Champion

    Whatever1 ,

     

    How are you applying it ?

    I just tried it with a custom column and it worked.

    let _variable = "A" in
    
    Table.SelectRows(#"Changed Type", each Text.Contains([Value], _variable))
    • Whatever1's avatar
      Whatever1
      Icon for Helper I rankHelper I

      I was trying to build part of the expression in the variable but, once I saw your post, it seemed obvious.

       

      Thanks