[Forum FAQ]How do I add a search feature in the parameter with long drop down list?

Question

Introduction
There is a scenario that thousands of values in the drop-down of a parameter. Scrolling through the large drop down list is slow and cumbersome. Is there a way that we add a search feature in the report, so that it can filter down the values in the drop
down list to a smaller list of values?
Solution
To achieve this requirement, we can add a parameter with multiple keywords ahead, then all of available values which are begin with the keyword will display in the parameter list. In this scenario, we can create cascading parameters. One is a keyword parameter,
and the other parameter is based on the keyword to display the available values.
In order to enable the user to type multiple keywords, we can use the query below to create a split function which takes the list and the de-limiter as input parameters and splits all the values in the database:
CREATE FUNCTION [dbo].[SplitParameterValues] (@InputString NVARCHAR(max), @SplitChar VARCHAR(5))
 RETURNS @ValuesList TABLE
 param NVARCHAR(255)
 AS
 BEGIN
 DECLARE @ListValue NVARCHAR(max)
 SET @InputString = @InputString + @SplitChar
 WHILE @InputString!= @SplitChar
 BEGIN
 SELECT @ListValue = SUBSTRING(@InputString , 1, (CHARINDEX(@SplitChar, @InputString)-1))
 IF (CHARINDEX(@SplitChar, @InputString) + len(@SplitChar))>(LEN(@InputString))
 BEGIN
 SET @InputString=@SplitChar
 END
 ELSE
 BEGIN
 SELECT @InputString = SUBSTRING(@InputString, (CHARINDEX(@SplitChar, @InputString) + len(@SplitChar)) , LEN(@InputString)-(CHARINDEX(@SplitChar, @InputString)+ len(@SplitChar)-1) )
 END
INSERT INTO @ValuesList VALUES( @ListValue)
 END
 RETURN
 END
Use the query below create a stored procedure to return all available values for Account parameter:
create PROCEDURE sp (@keyword nvarchar(50))
AS
SELECT     AccountDescription
FROM         DimAccount d
inner join (SELECT [param] FROM SplitParameterValues (@keyword,',')) s on d.AccountDescription like (s.[param]+'%')
In Report Designer, select Stored Procedure as the Query type for DataSet1, then select or type sp in the drop-down list as below:
By default, there is a parameter named keyword in the Parameters pane.
Add a multi-value parameter named Account in the report, then select “Get values from a query” option for Available Values as below:
Report Design and Report Preview surface
Report Design:
Report Preview:
References:
Create User-defined Functions (Database Engine)
Adding Cascading Parameters (SSRS)
Applies to
Reporting Services 2005
Reporting Services 2008
Reporting Services 2008 R2
Reporting Services 2012
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Answer 1

Hmmm. This didn't work. I even re-booted, and Firefox still doesn't show the search engine.
It was actually an update to an earlier engine, and I foolishly removed the old version rather than just updating it.
Is there anything elsewhere (eg. the registry) that might be preventing this?