Hi i have 3 parameter for my ssrs report, my first parameter is for search the data that will be shows on the second parameter and the third parameter is for save the second parameter selected value. I already try use Join to join the previous selcted value and curent selected value, but on my third parameter it keep replacing with the new one. And the previous parameter will be dissapear, how can i add the previos and the curent parameter like this function += on integer when we want to add the previous number and the curent number in looping instead replacing it.
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