Question

使用JavaScript自动完成TextBox代码

function getList_FixedValue() {
    var arr = ["c++", "java", "php", "coldfusion", "javascript", "asp", "ruby"];
    return arr;
}

function getList_FromServerSide() {

    $.ajax({
        type: "POST",
        url: "patient-problem-submit.aspx/GetCCList",
        data: '{doctorId: "' + $("#<%=hdnDoctorId.ClientID%>")[0].value + '" }',
        contentType: "application/json; charset=utf-8",
        dataType: "json",
        success: function (response) {
            alert(response.d); //here alert shows my expected data
            return response.d;
        },
        failure: function (response) {
            alert("failed to get data");
        }
    });
}

$('#txtCCPick').autocompleteArray(
        //getList_FixedValue(), //this works fine
        getList_FromServerSide(), //this not working
        {
            delay: 10,
            minChars: 1,
            matchSubset: 1,
            onItemSelect: selectItem,
            onFindValue: findValue,
            autoFill: true,
            maxItemsToShow: 10
        }
     );
 });

VB中的WebMethod .......

<System.Web.Services.WebMethod()> _
<ScriptMethod(ResponseFormat:=ResponseFormat.Json)> _
Public Shared Function GetCCList(ByVal doctorId As String) As String()
    Dim customers As New List(Of String)()
    Using conn As New SqlConnection()
        conn.ConnectionString = ConfigurationManager.ConnectionStrings("ConnStr").ConnectionString
        Using cmd As New SqlCommand()
            cmd.CommandText = String.Format("SELECT pkCCID, CCName FROM CC WHERE fkDoctorID = " + doctorId + " order by CCName")
            cmd.CommandType = CommandType.Text
            'cmd.Parameters.AddWithValue("@DoctorId", doctorId)
            cmd.Connection = conn
            conn.Open()

            Dim dbAdpt As New SqlDataAdapter(cmd)
            Dim ds As New DataSet

            dbAdpt.Fill(ds)

            If (Not ds Is Nothing) Then
                If (ds.Tables(0).Rows.Count > 0) Then
                    For Each row As DataRow In ds.Tables(0).Rows
                        customers.Add(String.Format("{0}", row("CCName")))
                    Next
                End If
            End If
            conn.Close()
        End Using
    End Using

    Return customers.ToArray()

End Function

在autocompleteArray中，当我调用getList_FixedValue（）函数时，项目将正确地加载到我的文本框中。但是当我调用getList_FromServerSide（）函数时，我的文本框中没有加载项目。所以我需要帮助解决这个问题。提前谢谢。

Answer 1

最终我通过以下方式得到了我的解决方案。问题是ajax调用的成功部分没有直接返回选项

 function getList_FromServerSide() {

    var result;
    $.ajax({
        type: "POST",
        url: "patient-problem-submit.aspx/GetCCList",
        data: '{doctorId: "' + $("#<%=hdnDoctorId.ClientID%>")[0].value + '" }',
        contentType: "application/json; charset=utf-8",
        dataType: "json",
        async: !1,
        success: function (response) {
            //alert(response.d); //here alert shows my expected data
            result = response.d;

        },
        failure: function (response) {
            alert("failed to get data");
        }
    });
    return result;
}

JavaScript自动完成数组不能与vb.net中的WebMethod一起使用

1 个答案: