Search a string based on a filter

Hi All,

I am trying out following scenario to search on a string based on a filter.

So i have a slicer which contains the name of the materials. Once i select one material i need to search that material on another string.

What i have tried is as follows

I have created following measure.

ITEM = if (ISFILTERED(MATERIALS[Material_Description]),VALUES(MATERIALS[Material_Description]),"xxxx")

Then i am searching this on another string in some other table and if the material is found within text i return 1. else 0

ISITEM = IF(ISERROR(SEARCH([ITEM],RULES_TAB[RULES])),0,1)

My question is search function is not taking [ITEM] as a string. Is there a solution for this

Regards,

Maddy