UI Slider Extension Help

[arusanah]

Hello All,

              I'm trying to implement the filter option through UI Slider extension. Other than Slider, I'm implementing a drop down and on selecting a value from the dropdown, the filter should be applied. But for some reason, the filter gets applied and then clears off automatically. When I click on the "step back " button on the left top corner of Qlik  Desktop , the option that I selected from the drop down is getting applied. For some reason, the filter option is not getting applied when I select from the drop down.

This is the code that I use

vars.this.backendApi.selectValues(1, chcZoneFilterVal, true);

where chcZoneFilterVal has value : [3]

Please find below the screenshot.

I tried with the below option and it worked. But I'm still getting an error message.

  Line 1:    vars.this.backendApi.selectValues(1, chcZoneFilterVal, false);
     
   Line 2:   vars.this.selectValues(1, chcZoneFilterVal, true);

Error message in Line 2:

Uncaught TypeError: Cannot read property '1' of undefined

Please advise me on the same as this is a showstopper for our project. Any help is appreciated.