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henriquelima
Regular Visitor

column name

how can I get the column name of a table and after that use as a parameter?

1 ACCEPTED SOLUTION
Anonymous
Not applicable

Hi, 

 

The important step is:

 

#"Columns" = Table.ColumnNames(#"Changed Type")

 

This is the M code of the example.

 

let
    Source = Table.FromRows(Json.Document(Binary.Decompress(Binary.FromText("i44FAA==", BinaryEncoding.Base64), Compression.Deflate)), let _t = ((type text) meta [Serialized.Text = true]) in type table [Column1 = _t, Column2 = _t, Column3 = _t, Column4 = _t]),
    #"Changed Type" = Table.TransformColumnTypes(Source,{{"Column1", type text}, {"Column2", type text}, {"Column3", type text}, {"Column4", type text}}),
    #"Columns" = Table.ColumnNames(#"Changed Type")
in
    #"Columns"

Regards.

View solution in original post

3 REPLIES 3
Anonymous
Not applicable

Hi @henriquelima,

 

You can use Table.ColumnNames in your M code, like this:

 

columns1.png

 

Next, create a new parameter and select Query option in Suggested Values. In Query field you will find your table.

 

columns2.png

 

 

Regards.

Please can you send me the full code of advanced editor to extract the column name? Just have a half picture

Anonymous
Not applicable

Hi, 

 

The important step is:

 

#"Columns" = Table.ColumnNames(#"Changed Type")

 

This is the M code of the example.

 

let
    Source = Table.FromRows(Json.Document(Binary.Decompress(Binary.FromText("i44FAA==", BinaryEncoding.Base64), Compression.Deflate)), let _t = ((type text) meta [Serialized.Text = true]) in type table [Column1 = _t, Column2 = _t, Column3 = _t, Column4 = _t]),
    #"Changed Type" = Table.TransformColumnTypes(Source,{{"Column1", type text}, {"Column2", type text}, {"Column3", type text}, {"Column4", type text}}),
    #"Columns" = Table.ColumnNames(#"Changed Type")
in
    #"Columns"

Regards.

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