Use variable condition as dimension

[LE2]

I created a variable called "Field" and I tried to use this variable to control my chart dimension. Here is my dimension expression:

=IF(Field='industry',industry,
      IF(Field = 'country',country,
           IF(Field='purpose',purpose)))

The bar chart: X-axis is date, Y-axis is balance value, bars are coloured by this expression dimension.

I used a drop down "Variable Input" bundle to select dynamic values of "Field", to choose which dimension to use for colouring.

However, with different selections in the "Variable Input" bundle, the chart does not change at all.

Plz help me with this. Thanks.

Qlik Sense Business 

[Lisa_Sun]

This can be achieved by setting color condition.

Example: if(Product='$(colorbar)',RGB(141,170,203),RGB(255,0,0))

[LE2]

I don't think this is a solution. I want my charts look like this:

And in each bar, the dimension chosen by the IF expression is used for coloring.

 

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