Report Parameters work the other way around. The major usages of the report parameters are:
- to vary report data retrieved from a Data Source component
- in expressions to directly provide a value
- in data item filtering, sorting or grouping criteria
According to your description, you want to hide a parameter based on field value, which as you can see is the opposite of what they are meant to do.
In general you can use Conditional Functions
to create a conditional filter, this way it would work only when you want it to. You can show/hide report items with expressions by utilizing Conditional Formatting
the Telerik team
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