How Do I Use A Parameter In A Dataset Field Value Using An MDX Query?

Let me simplify. The value of my dataset field Dimension_1 is



[SOB Year].[Yr Id].[Yr Id].[MEMBER_CAPTION]



I want to use parameters for SOB Year and Yr Id like I do on the query.



But if I use



="["& Parameters!dimension_1_table.Value &"].["& Parameters!dimension_1_column.Value &"].[" & ["& Parameters!dimension_1_column.Value &"]"



it returns null for the values. I don't know how to make these parameters





I am passing in parameters for the table and column to build an MDX query here is my query.



="SELECT NON EMPTY { [Measures].[Liability Amt] } ON COLUMNS, NON EMPTY { (["& Parameters!dimension_1_table.Value &"].["& Parameters!dimension_1_column.Value &"].["& Parameters!dimension_1_column.Value &"].ALLMEMBERS ) } DIMENSION PROPERTIES MEMBER_CAPTION, MEMBER_UNIQUE_NAME ON ROWS FROM [SOB Clean] CELL PROPERTIES VALUE, BACK_COLOR, FORE_COLOR, FORMATTED_VALUE, FORMAT_STRING, FONT_NAME, FONT_SIZE, FONT_FLAGS"





Anyone know what value I need to use on the dataset field to access the column?



Thanks,

Roger