AutoCompleteExtender未触发

Question

我已经查看了谷歌给我的所有答案，但它没有帮助我的问题抱歉。 （如果我写标题，还有Stackoverflow给我的那些）...... 它位于<asp:Table>

内

<asp:TableCell>
    <asp:UpdatePanel runat="server" UpdateMode="Conditional" ID="UP3">
        <ContentTemplate>
            <asp:DropDownList runat="server" ID="SupplierDDL" Visible="false">
            </asp:DropDownList>
            <asp:TextBox runat="server" AutoPostBack="true" ID="tbSupplier">             
            </asp:TextBox>
            <cc1:AutoCompleteExtender runat="server" ID="AutoCompleteExtender1" TargetControlID="tbSupplier" BehaviorID="skldjfa"
             MinimumPrefixLength="2" EnableCaching="true" ServiceMethod="SelectAllManufacturer">
            </cc1:AutoCompleteExtender>
            <asp:HiddenField runat="server" ID="hfSupplier" /
        </ContentTemplate>
    </asp:UpdatePanel>
</asp:TableCell>

这个<asp:Table>周围也是一个Updatepanel。

我的Servicemethode应该没问题：

[System.Web.Services.WebMethod]
[System.Web.Script.Services.ScriptMethod]
public string[] SelectAllManufacturer(string prefixText, int count)
{
    ArrayList filteredList = new ArrayList();
    OracleConnection oracon = GlobalFunctions.DatabaseConnection();
    OracleDataReader oradr;
    oracon.Open();
    OracleCommand oracom = new OracleCommand(Classes.SQL.SQL4global.selectSupplierBySearchString(prefixText.ToLower()), oracon);
    oradr = oracom.ExecuteReader();
    if (oradr.HasRows == true)
    {
        while (oradr.Read())
        {
                filteredList.Add(AjaxControlToolkit.AutoCompleteExtender.CreateAutoCompleteItem(
                    Convert.ToString(oradr["companyname"]) + " ** " +
                Convert.ToString(oradr["street"]) + " * " + Convert.ToString(oradr["postalcode"]) + " * " + Convert.ToString(oradr["city"]) + " * " + Convert.ToString(oradr["land"]),
                Convert.ToString(oradr["ID_Supplier"])));
        }
    }
    oradr.Close();
    oracon.Close();
    return (string[])filteredList.ToArray(typeof(string));

}

它没有给我任何错误，它只是没有激活ServiceMethode。

Answer 1

问题出在问题的声明中：

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

我将其改为静态方法

[System.Web.Services.WebMethod]
[System.Web.Script.Services.ScriptMethod]
public static string[] SelectAllManufacturer(string prefixText, int count)

并且有效。

Answer 2

其中一个问题可能是您没有启用ScriptManager（ToolkitScriptManager）控件的PageMethods功能。

因此，请确保您在master或aspx页面中具有与此类似的代码：

<cc1:ToolkitScriptManager ID="scriptManager" runat="server" EnablePartialRendering="true"
                        EnablePageMethods="true">

Answer 3

对我而言，网络服务代码中的答案更高。除了在方法上方添加[System.Web.Script.Services.ScriptMethod]之外，还有一行必须取消注释。变化：

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

到

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