pagemethods仅适用于空文本框参数 [英] pagemethods work only with empty textbox parameter

问题描述

仅当文本框为空时才调用

服务器端方法。这是登录表单。当我输入任何用户名和密码时，服务器端方法根本不是被调用的。如果我将文本框留空，一切正常。请帮助

 <  表格      class   =  login-form    runat   =  server >  
 <   asp：ToolkitScriptManager     ID   =  ToolkitScriptManager1    EnablePageMethods   =   true    runat   =  server  >  <   / asp：ToolkitScriptManager  >  
 
 <   div     class   =   form-group >  
 
 <   label     class   =  sr-only    for   =  form-username > 用户名<   / label  >  
 <   input       id   = 用户名    type   =  text   占位符  = 用户名...    class   =  form-username form-control    /  >  
 <   / div  >  
 <  < span class =code-leadattribute> div     class   =  form-group >  
 <   label     class   =  sr-only      =  form-password  > 密码<   / label  >  
 <  输入   类型  = 密码    id   = 密码   占位符  = 密码...    class   =  form-password form-control    /  >  
 <   / div  >  
 
 
 <  按钮      class   =  btn    onclick   =  CheckLogin（）   > 登录！<   / button  >  
 <   label     id   = 消息 >  <   / label  >  
 <   / form  >  

以下是javascript代码。它返回用于进一步检查的数据。如果数据为真，我们存储会话并重定向到索引页。

  <   script  >  
  function  CheckLogin（）{
  var  username = $（' ＃用户名'）VAL（）; 
  var 密码= $（'  #Date ）VAL（）; 
 alert（密码）; 
 PageMethods.LoadDetails（用户名，密码，功能（数据）{
 如果 （data ==   TRUE）{
 Session（  Userid）= username; 
  window 。 location  .href =   index.aspx; 
} 
 其他 {
 $（' ＃message'）。html（data）; 
} 
 
}）; 
} 
 
 <   /   script  >  

以下是vb代码。它调用一个名为Marks的类，它包含一个名为Load_Details的函数。此函数检查用户是否存在，如果存在，则返回true。

  Imports  System.Web .Services 
 
< System.Web.Services.WebMethod（）> _ 
 公开 共享 功能 LoadDetails（ ByVal 用户名作为 字符串，< span class =code-keyword> ByVal 密码作为 字符串）作为 字符串 
  Dim  Mkz 作为标记= 新标记（）
  Dim  holmes 作为 字符串 
 holmes = Mkz.load_Details（用户名，密码）
 < span class =code-keyword>返回 holmes 
 结束 功能 

解决方案

（' ＃Username' ）VAL（）;
var password =

（' ＃密码）VAL（）;
alert（密码）;
PageMethods.LoadDetails（用户名，密码，功能（数据）{
如果 （data == TRUE）{
Session（ Userid）= username;
window 。 location .href = index.aspx;
}
else {

（' ＃message'）。html（data）;
}

}）;
}

< / script >

以下是vb代码。它调用一个名为Marks的类，它包含一个名为Load_Details的函数。此函数检查用户是否存在，如果存在，则返回true。

  Imports  System.Web .Services 
 
< System.Web.Services.WebMethod（）> _ 
 公开 共享 功能 LoadDetails（ ByVal 用户名作为 字符串，< span class =code-keyword> ByVal 密码作为 字符串）作为 字符串 
  Dim  Mkz 作为标记= 新标记（）
  Dim  holmes 作为 字符串 
 holmes = Mkz.load_Details（用户名，密码）
 < span class =code-keyword>返回 holmes 
 结束 功能 

server side method is called only if textbox is empty. This is login form. When I type any username and password, the server side method is not a called at all. If I leave the textboxes empty, everything works . Please help

<form  class="login-form" runat="server">
             <asp:ToolkitScriptManager ID="ToolkitScriptManager1" EnablePageMethods="true" runat="server"></asp:ToolkitScriptManager>

                                        <div class="form-group">

                                            <label class="sr-only" for="form-username">Username</label>
                                            <input  id="Username" type="text" placeholder="Username..." class="form-username form-control" />
                                        </div>
                                        <div class="form-group">
                                            <label class="sr-only" for="form-password">Password</label>
                                            <input type="password" id="Password" placeholder="Password..." class="form-password form-control" />
                                        </div>


               <button  class="btn" onclick="CheckLogin()" >Sign in!</button>
                                    <label id="message"></label>
</form>

Below is the javascript code. It returns data that is used for further checks. If the data is true, we store a session and redirect to index page.

<script>
            function CheckLogin() {
                var username = $('#Username').val();
                var password = $('#Password').val();
                alert(password);
                    PageMethods.LoadDetails(username, password, function (data) {
                    if (data == "TRUE") {
                        Session("Userid") = username;
                        window.location.href = "index.aspx";
                    }
                    else {
                        $('#message').html(data);
                    }

                });
            }

    </script>

below is the vb code. It calls a class called Marks which contains a function called Load_Details. This function checks to see if user exist and returns true if he does exist.

Imports System.Web.Services

        <System.Web.Services.WebMethod()> _
        Public Shared Function LoadDetails(ByVal Username As String, ByVal Password As String) As String
            Dim Mkz As Marks = New Marks()
            Dim holmes As String
            holmes = Mkz.load_Details(Username, Password)
            Return holmes
        End Function

解决方案

('#Username').val(); var password =

('#Password').val(); alert(password); PageMethods.LoadDetails(username, password, function (data) { if (data == "TRUE") { Session("Userid") = username; window.location.href = "index.aspx"; } else {

('#message').html(data); } }); } </script>

below is the vb code. It calls a class called Marks which contains a function called Load_Details. This function checks to see if user exist and returns true if he does exist.

Imports System.Web.Services

        <System.Web.Services.WebMethod()> _
        Public Shared Function LoadDetails(ByVal Username As String, ByVal Password As String) As String
            Dim Mkz As Marks = New Marks()
            Dim holmes As String
            holmes = Mkz.load_Details(Username, Password)
            Return holmes
        End Function

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