Now I want to:
1. Filter results that has "ri"
2. Search only under the column "Name"
What happens after running "ProductDataGrid.SearchHelper.Search("ri");" is:
1. 2nd row (Vengeance LPX) gets filtered out - this is intentional and running fine
2. It'll still show the 1st row with Viper Steel because the string "ri" exists within the brand Pat"ri"ot. But what I really wanted to do was to only look for "ri" among the Name column, if it doesn't exist there then filter it out, it doesn't matter whether there's a "ri" string from other columns.