Constructing a search box in ASP.NET using DataSet

Question

I have a DataSet file in an ASP.NET project, and this query works, however I want it to be able to incorporate LIKE '%' element. How can I add it into the SQL statement below, while keeping the variable element?

SELECT brand, model, location, piclink, colour, price, yearreg, carID 
FROM cars
WHERE brand = ?

I tried this but it won't work. Visual Studio claims that its unable to parse query.

SELECT brand, model, location, piclink, colour, price, yearreg, carID 
FROM cars
WHERE brand = ? + brand LIKE '%'

I have set up a populated drop down box with brand names of cars from an Access database, and I want now to use this modified query to search for results. Can you point me in the right direction, as to where and how to do that, please?

Answer 1

SELECT brand, model, location, piclink, colour, price, yearreg, carID FROM cars WHERE brand = '?' AND brand LIKE '%'