[ASP.NET AJAX]Important notes when we create web service methods for some extend

[WebService(Namespace = "http://tempuri.org/")]
[WebServiceBinding(ConformsTo = WsiProfiles.BasicProfile1_1)]
[System.Web.Script.Services.ScriptService]
public class AutoComplete : WebService
{
public AutoComplete()
{
}

[WebMethod]
public string[] GetCompletionList(string prefixText, int count)
{
if (count == 0)
{
count = 10;
}

if (prefixText.Equals("xyz"))
{
return new string[0];
}

Random random = new Random();
List<string> items = new List<string>(count);
for (int i = 0; i < count; i++)
{
char c1 = (char) random.Next(65, 90);
char c2 = (char) random.Next(97, 122);
char c3 = (char) random.Next(97, 122);

items.Add(prefixText + c1 + c2 + c3);
}

return items.ToArray();
}
}

B) Service method in the page code behind

Here is a code snippet for the service method in the page.
Some tips need to pay attention here.

• First, we need [System.Web.Services.WebMethod] for the service method.
• Second, we need [System.Web.Script.Services.ScriptMethod] for the service method.
• Third, all the parameters names could not be changed.
• Forth, in an inline web service method, we NEED the "static" qualifier.