AjaxControlToolKit.AutoCompleteExtender 自动下拉

AjaxControlToolKit.AutoCompleteExtender 自动下拉

 

<asp:ScriptManager ID="ScriptManager1" runat="server">      
    </asp:ScriptManager>
    <div> 下拉框<br />      
                <asp:TextBox ID="TextBox1" runat="server"></asp:TextBox>
                <cc1:AutoCompleteExtender ID="AutoCompleteExtender1" MinimumPrefixLength="2"
                  CompletionSetCount="8"  TargetControlID = "TextBox1" ServicePath="http://localhost:8180/WebServiceProject/Service.asmx"
    ServiceMethod="HelloWorld" runat="server">
                </cc1:AutoCompleteExtender>
          
    </div>

 

注意 ， 要先运行你的service.

using System.Web.Script.Services;//关键程序集引用

[WebService(Namespace = "http://tempuri.org/")]
[WebServiceBinding(ConformsTo = WsiProfiles.BasicProfile1_1)]
//[ScriptService()]//一定要添

[System.Web.Script.Services.ScriptService]
// To allow this Web Service to be called from script, using ASP.NET AJAX, uncomment the following line.

public class Service : System.Web.Services.WebService
{
    public Service () {

        //Uncomment the following line if using designed components
        //InitializeComponent();
    }

    [WebMethod]
    public string[] HelloWorld()
    {
        string[] a = new string[] { "1", "2", "3", "4" };
        return a;
    }
   
}