Question

WebService1.asmx

Imports System.Web.Services
Imports System.Web.Services.Protocols
Imports System.ComponentModel

' To allow this Web Service to be called from script, using ASP.NET AJAX, uncomment the following line.
<System.Web.Script.Services.ScriptService()>
<System.Web.Services.WebService(Namespace:="http://tempuri.org/")>
<System.Web.Services.WebServiceBinding(ConformsTo:=WsiProfiles.BasicProfile1_1)>
<ToolboxItem(False)>
Public Class WebService1
    Inherits System.Web.Services.WebService

    <WebMethod()>
    Public Function HelloWorld() As String
        Return "Hello World"
    End Function

    <WebMethod(True)>
    Public Function myFunction(ByVal myString As String) As String
        Return "Hello " + myString // If i insert breakpoint here the line is reached
    End Function

End Class

WebForm1.aspx

<%@ Page Language="vb" AutoEventWireup="false" CodeBehind="WebForm1.aspx.vb" Inherits="WebApplication2.WebForm1" %>

<!DOCTYPE html>
<script type="text/javascript">
    function onButtonClicked()
    {
        var retVal = WebApplication2.WebService1.myFunction(document.getElementById("TextBox1").value, WTFHAPPENS, onTimeOut, onError); // From here doesn't go anywhere
    }

    function WTFHAPPENS(text)
    {
        document.getElementById("Label1").value = text; // This should be reached but is never reached...
    }

    function onTimeOut(value) {
        alert("TimeOut!");
    }

    function onError(value) {
        alert("Error!");
    }
</script>
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
    <title></title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
    <asp:ScriptManager ID="ScriptManager1" EnablePageMethods="true" AsyncPostBackTimeout="3600" runat="server">
        <Services>
            <asp:ServiceReference Path="~/WebService1.asmx" InlineScript="true" />
        </Services>
    </asp:ScriptManager>
        <asp:TextBox ID="TextBox1" runat="server"></asp:TextBox>
        <asp:Button ID="Button1" runat="server" Text="Button" OnClientClick="onButtonClicked(); return false;" CausesValidation="false" />
        <asp:Label ID="Label1" runat="server" Text="This will be changed!" />
    </div>
    </form>
</body>
</html>

Okey，所以在寻找我的问题的答案时遇到了一些麻烦...

有人知道成功方法永远不会被调用吗？

我曾尝试使用Firefox开发人员调试工具对其进行调试，但未找到任何答案。

我的函数从WebService1.asmx调用myFunction webMethod，应该返回一个字符串（确实如此），但从未到达WTFHAPPENS方法。

Answer 1

问题实际上是我的代码不正确。 Label元素没有.value属性。我改变了：

@Test
public void testLogin_1(){
    login(email, password)
}

@Test
public void testLogin_2(){
    login(email2, password2)
}


private void login(String email, String password){
   inputEmail(email);
   inputPassword(password);
   clickSubmit();

   Assert.assertEquals();
   // do some asserts so if You want to assert some error cases.
}

到

function WTFHAPPENS(text)
{
    document.getElementById("Label1").value = text; // This should be reached but is never reached...
}

并且警报弹出窗口可见。

    function WTFHAPPENS(value)
    {
        alert("Succes!");
    }

VB Ajax WebMethod不调用onSucces方法

1 个答案: