Oh Indian

ASP.NET - Textbox AutoComplete Feature using VB.NET

1. Make sure you have added the Script Manager from the Ajax into you form.
   
2. Put a textbox in it.
   
3. From the Ajax Control Extension tools, drag and drop the Autocomplete extender.
4. Set the TargetControlID of the AutocompleteExtender control like the following.
   
   
5. Right click on the website name and choose the Add Item... option.
6. Choose the Webservice, give the name Myservice.vb
7. Go to the Codeview of the MyService and make sure the following code is added. Please note the highlighted lines.
   

   Imports System.Web
   Imports System.Web.Services
   Imports System.Web.Services.Protocols
   
   <WebService(Namespace:="http://tempuri.org/")> _
   <WebServiceBinding(ConformsTo:=WsiProfiles.BasicProfile1_1)> _
   <Global.Microsoft.VisualBasic.CompilerServices.DesignerGenerated()> _
   <System.Web.Script.Services.ScriptService()> _
   Public Class MyService
       Inherits System.Web.Services.WebService
   
       <WebMethod()> _
       Public Function HelloWorld() As String
           Return "Hello World"
       End Function
   
       <WebMethod()> _
       Public Function GetRandomList(ByVal prefixText As String, _
                      ByVal count As Int16) As String()
           Dim S(count - 1) As String
   
           Randomize(Now.Ticks)
           Dim I As Integer
           For I = 0 To count - 1
               S(I) = prefixText & CDec(Rnd() * 100000.0#)
           Next
           Return S
       End Function
   
   End Class

8. Now choose the textbox and enter the properties as shown here.
   
   
9. Run to view the result.