reporting services - "Expand All" button in a drill down report canceling another feature -

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i have main report shows bar chart sales per country. once click on country bar, drill down report shows (+/-) list of countries toggled country name, clicked country expanded, while others collapsed.

i asked client add "expand all" button allow them expand countries detail @ once. however, when added button, first functionality lost.

in initialtogglestate expression of toggle textbox country used: =iif(fields!country_id.value=parameters!param_country_id.value or parameters!paramexpandorcollapse.value = "expand" ,true, false)

could have both functionalities working without 1 canceling other?


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