Dimension filter selection and dependency on other dimension filter

Hi Everyone.

i am wondering of one thing how can i set filter values in dimension filter so that the other dimension filter will be dependent on that.

its like a if then statement.

if (selecting == A ) from the dimension filter_1 then it will select yahoo and google from the dimension filter _2 accordingly it will display it on the chats.

i tried with the statement

if(RADIOBUTTONGROUP_1.getSelectedValue() =="MIPI")

  {

  DS_1.setFilterExt("L2_ABS","HDMI");

   }

In case of radio button this getSelectedValue() is working when i am trying to do same with the dimension filter its not giving me this function.

My requirement is i want to give multiple selection in terms of selection when i am selecting from the dimension filter which will impact the another dimension filter so multiple selection is not possible in case of radio button. 

I search for the same before posting this but unfortunate to figure out the same.