Hi 

My thoughts

For your Search Form....

Create a select simple field with your options ie A=a, B=b etc

and set storage to the same as the field you want to filter.  

Then in 3 - match, set to beginning with.  

I think sounds about right.  

Hi Bucklash,

Many thanks for your reply.

I will give your idea a try.

One more question: is there a way to display the search filter in other way than select field. I'm thinking about radio buttons.

Thank you

Hi

Yes, you can. 

The tricky bit is getting the correct match setting.

Put debug on, and check the sql query as you experiment 

Hello Bucklash,

With your method, I've made it working with the default select field (not tried radio button yet).

Thank you again for your help.