Question

Hi I am using the AutoCompleteExtender ajax control. I am getting the list of strings in LIST collection. I want to populate only those strings, which user typing as prefix text. how to do this. I am following the example given in ajax toolkit.let say user typing “ca” then if list contain the list like,
‘cat’, ‘dog’, donkey’, ‘mouse’,’cart’….etc.

Then it should populate only ‘cat’ and cart’.
How to achieve this?

Answer 1

In the example there’s a description of the properties. Quote:

• ServiceMethod – The web service method to be called. The signature of
  this method must match the following:

  [System.Web.Services.WebMethod]
  [System.Web.Script.Services.ScriptMethod]
  public string[] GetCompletionList(string prefixText, int count) { ... }
  

Note that you can replace
“GetCompletionList” with a name of
your choice, but the return type and
parameter name and type must exactly
match, including case.

• ServicePath – The path to the web service that the extender will
  pull the word\sentence completions
  from. If this is not provided, the
  service method should be a page
  method.

So you need write a web service which will contain a method returning the list of suggestions based on the user input.