Add a multi-value parameter to a Report
You can add a parameter to a report that allows the user to select more than one value for the parameter.
You can pass multiple parameter values to the report within the report URL. For a URL example includes a multi-value parameter, see Pass a Report Parameter Within a URL.
For information on how to pass multiple parameter values to a stored procedure, see Working With Multi-Select Parameters for SSRS Reports on mssqltips.com.
To add a multi-value parameter
In Report Builder, open the report that you want to add the multi-value parameter to.
Right-click the report dataset, and then click Dataset Properties
Add a variable to the dataset query by either editing the query text in the Query box, or by adding a filter by using the query designer. For more information, see Build a Query in the Relational Query Designer (Report Builder and SSRS).
WHERE Production.ProductInventory.ProductID IN (@ProductID)
- The query text must not include the DECLARE statement for the query variable.
- The text for the query variable must include the IN operator, as shown in the example above.
- Be sure to include the parentheses around the variable as shown above. Otherwise, the report fails to render and the “must declare the scalar variable” error is displayed.
A dataset parameter for an embedded dataset or a shared dataset is created automatically for the query variable. A report parameter is created automatically for the dataset parameter.
In the Report Data pane, expand the Parameters node, right-click the report parameter that was automatically created for the dataset parameter, and then click Parameter Properties.
In the General tab, select Allow multiple values to allow a user to select more than one value for the parameter.
(Optionally) In the Available values tab, specify a list of available values to display to the user.
An available values list limits the choices a user can make to only valid values for the parameter. For multiple values, the top of list begins with a Select All feature so the user can select or clear all values with a single click. If you choose to get the available values for the report parameter from a dataset query, be sure to select a dataset that does not contain the query variable that is associated with the same report parameter.
For more information, see Add, Change, or Delete Available Values for a Report Parameter (Report Builder and SSRS).