SSRS - Show textbox if string contains numbers - sql-server

Question

I am trying to convert the following SQL Server expression into a visibility expression in SSRS for a certain textbox that contains an error message:
select address, commonPlaceName, municipality where #Location not like '$[0-9]%'
My SSRS report lets users search for #Location, which is a combination of the address and commonPlaceName and returns a table of records.
I am trying to limit the number of rows returned based on both the character length and whether the parameter value supplied contains a number.I want to show an error message when they search for a common place or address without a number that says "Sorry your search was too broad so the number of records has been limited".
I got the length part to work by using the following:
=iif(len(Parameters!Location.Value)<=5,false,true)
But I can't figure out how to search for a number in a string
For those interested, in the SQL script, I am setting the rowcount based on a case statement that parallels the visibility options I am trying to set in SSRS.
I am still learning SSRS so any help is much appreciated!
EDIT:
Below is the SQL statement I am using to limit rowcount if that helps:
declare #top int
set #top = case when len(#Location) <= 5 then 100
when #Location not like '%[0-9]%' then 100
when len(#Location) >5 then 0
end
set rowcount #top

Answer 1

There are a number of ways to do this.
Calculate the visibility in your query and set the Visibility to the calculated query field. This is cleaner in the report. Normally you would want to put all display logic in the report itself, however, I have been lazy a time or two.
=IIF(Fields!ShouldShowField.Value==1,0,1)
Use SSRS functions such as InStr() or
=IIF(Regex.Replace(Fields!MyField.Value, "[MyRegExString]").Length == Fields!MyField.Value.Length, 0, 1)
Use Custom Code for advanced string manipulation and call your code similar to
=IIF(Code.ShouldShowTextBox(Fields!MyField.Value),0,1)

Answer 2

Okay I think I found a workaround for now. I ended up creating a new dataset:
select
'LocationWithNum' = case
when #Location like '%[0-9]%' then 'true'
else 'false'
end
Then I changed the visibility expression of the error message textbox to the following:
=iif(len(Parameters!Location.Value)<=5 or First(Fields!LocationWithNum.Value, "LocationWithNum") = false, false, true)
So far this seems to work well. Let me know if you guys think of anything else!