Series Group Properties Dialog Box, Filters
Click Filters on the Series Group Properties dialog box to limit the number of series in the selected group.
Click to add a new filter clause to the list.
Click to delete the selected filter clause from the list.
Click to move the selected filter up in the list.
Click to move the selected filter down in the list.
Type or choose the expression to which you want to apply a filter. Click the Expression (fx) button to edit the expression.
Choose the data type for Value. When possible, choose a data type that matches the data type for Expression.
The values in Expression and Value must evaluate to the same data type. For example, if Expression is set to a field that has the data type System.Int32 and Value is set to 7, from the drop-down list, choose Integer.
If the data type option you need is not in the drop-down list, write an expression to convert the value to the correct data type. For more information, see Filter Equation Examples (Report Builder 3.0 and SSRS).
Select the operator to use to compare the expression and the value.
Type an expression or value to filter on.