Google search feature

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C#

C#4.0

Hi,
i am using google search feature available in Codeproject the same;
its just that i am using that feature in a user control and that user control which consists of one
1) html textbox
2) SearchSuggest.js file(for calling key events on textbox...)
3) Code behind for getting typed data from in textbox from .js file
and making connection string and for displaying that in the same
manner as google does that (using Like % parameter % in Stored
Procedure)

Since i am using the same user controls on the same aspx page;
and the data in all the user controls textboxes come from different tables of a database--its working fine in one manner
But the problem is that the data in one user control textbox is the combination of all the three textboxes,so even if i type in any textbox it brings data from all the textboxes(all three tables ) and showing in the filter mode as it happens in google.

so i want that it should display the data of only that textbox which i am currently typing or working.

What should i do???