combo box related query

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I am using Vb.net front end sharp develop and .net framework 3.5, database msaccess.

There is a module in my coding where I am showing all the names of the client in the combobox.

I'm extracting the names at form load and displaying it. It is working properly.

Now what I want is when the user type character b then a drop down type something should be created and all the name starting with b should be displayed with initial focus on first record. Now when if user press a then all name starting with ba should be displayed.

I know I can repopulate the database using like % query but since the database will have lakhs of name I don't want to do so.

Any suggestion ?

Posted 25-Apr-11 4:18am

harshad oswal

Updated 25-Apr-11 5:17am

Henry Minute

v2

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Nish Nishant · Answer 1 · 2011-04-25T06:32:00

If you have a large database with millions of records, it may make better sense to have a virtual drop down. When the user starts typing, wait for about 500 ms and then do a DB fetch for just those names that start with the entered text. You'd need to retrieve the data asynchronously to prevent a UI freeze-up. And the 500ms wait is to save on unwanted fetches.

*dan!sh* · Answer 2 · 2011-04-25T04:51:00

Solution 1

I would suggest redesign. I do not think access is suitable for huge applications as your seems to be. Also, it does not makes sense to have a combobox with those many values. I would suggest a search using textbox and a button.

Posted 25-Apr-11 4:51am

dan!sh

harshad oswal · Answer 3 · 2011-04-26T07:20:00

Solution 3

can u explain how to add virtual combo drop.

Posted 26-Apr-11 7:20am