PAGEMETHODS 不适用于 JS 函数
[英]PAGEMETHODS is not working from JS function
问题描述
I am trying to call code behind method from JS function using pagemethods but its not calling and its not throwing any error either...
我正在尝试使用 pagemethods 从 JS 函数调用方法背后的代码，但它没有调用，也没有抛出任何错误......
function example(){
pagemethods.method();
}
**aspx.cs
[webmethod]
public static void method(){
//some logic
}
so to find the issue i did some negative testing for that所以为了找到这个问题，我做了一些负面测试
I commented WEBMETHOD then it showed an error by saying"object does not support this property or method".can i assume this case shows pagemethods is working!!!
我评论了 WEBMETHOD 然后它通过说“对象不支持此属性或方法”来显示错误。我可以假设这种情况表明 pagemethods 正在工作！！！Then I replaced calling method name in JS function to pagemethods.newmethod() but i didn't change method name to newmethod..i was expecting an some error but it didn't give me an error..
然后我将 JS 函数中的调用方法名称替换为 pagemethods.newmethod() 但我没有将方法名称更改为 newmethod..我期待一些错误，但它没有给我一个错误..
NOTE:i have "method=post" in form declaration..does it effect pagemethods anything..注意：我在表单声明中有“method=post”..它会影响 pagemethods 吗..
so confused why this issue is happening!!!很困惑为什么会发生这个问题！！！
can we call codebehind method in any other way instead of pagemethods..please advice!!!我们可以以任何其他方式调用代码隐藏方法而不是 pagemethods..请建议！！！
4 个解决方案
解决方案1
3 2014-01-20 17:24:36
in msnd you can see a sample of this, so you need...在msnd 中，您可以看到此示例，因此您需要...
in markup:在标记中：
<asp:ScriptManager ID="sm" runat="server" EnablePageMethods="true">
<Scripts >
<asp:ScriptReference Path="pm.js" />
</Scripts>
</asp:ScriptManager>
in code behind: your static method, with attribute [WebMethod]在后面的代码中：您的静态方法，具有[WebMethod]属性
in pm.js : something like this在pm.js ：像这样
function example(){
PageMethods.method();
}
UPDATE更新
Another variant is use an ajax request to your method, for example with jquery in goes like this:另一个变体是对您的方法使用 ajax 请求，例如使用 jquery 是这样的：
function CallMethod(){
$.ajax({
type: "POST",
dataType: 'json',
contentType: "application/json; charset=utf-8",
url: "YourPage.aspx/yourmathod",
data:JSON.stringify({}), // parameters for method
success: function (dt) { alert(dt);}, //all Ok
error: function () { alert('error'); } // some error
});
}
解决方案2
0 2014-01-19 17:01:00
也许您的 aspx 页面中可能缺少 EnablePageMethods = true ...
解决方案3
0 2019-02-15 09:05:15
Below given code worked for me.下面给定的代码对我有用。
.cs - 。CS -
using Microsoft.AspNet.FriendlyUrls;
using Newtonsoft.Json;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
public partial class Default2 : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
}
[System.Web.Services.WebMethod(EnableSession = true)]
[System.Web.Script.Services.ScriptMethod(UseHttpGet = false, ResponseFormat = System.Web.Script.Services.ResponseFormat.Json)]
public static string yourmethod1()
{
return "Allow user";
}
}
apsx.cs Page - apsx.cs 页面 -
<%@ Page Language="C#" AutoEventWireup="false" CodeFile="Default2.aspx.cs" Inherits="Default2" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title></title>
<script type="text/javascript">
function GreetingsFromServer()
{
PageMethods.yourmethod1(OnSuccess, OnError)
}
function OnSuccess(response)
{
alert(response);
}
function OnError(error)
{
alert(error);
}
</script>
</head>
<body>
<form id="form1" runat="server" method="post" >
<div>
<asp:ScriptManager runat="server" EnablePageMethods="true" EnablePartialRendering="true" > </asp:ScriptManager>
<input id="Button1" type="button" value="button" onclick=" return GreetingsFromServer();" />
</div>
</form>
</body>
</html>
Web.conf - Web.conf -
<configuration>
<appSettings>
<add key="owin:AutomaticAppStartup" value="false" />
</appSettings>
<system.web>
<compilation debug="true" targetFramework="4.5.2" />
<httpRuntime targetFramework="4.5.2" />
<authorization>
<allow users="*"/>
</authorization>
</system.web>
</configuration>
解决方案4
0 2019-02-15 09:20:24
This approach is also working -这种方法也有效——
.aspx file - .aspx 文件 -
<%@ Import Namespace="System" %>
<%@ Import Namespace="System.Collections.Generic" %>
<%@ Import Namespace="System.Linq" %>
<%@ Import Namespace="System.Web" %>
<%@ Import Namespace="System.Web.UI" %>
<%@ Import Namespace="System.Web.UI.WebControls" %>
<%@ Import Namespace="Microsoft.AspNet.FriendlyUrls" %>
<%@ Import Namespace="Newtonsoft.Json" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title></title>
<script type="text/javascript" src="jquery-1.10.2.min.js"></script>
<script type="text/javascript">
function CallMethod()
{
debugger;
jQuery.ajax({
url: 'Default.aspx/yourmethod',
type: "GET",
contentType: "application/json; charset=utf-8",
dataType: 'json',
data: JSON.stringify({}), // parameters for method
success: function (dt)
{
debugger;
alert('success : ' + dt.d );
}, //all Ok
error: function (dt) {
debugger;
alert('error : ' + dt);
} // some error
});
}
function GreetingsFromServer()
{
PageMethods.yourmethod1(OnSuccess, OnError);
}
function OnSuccess(response)
{
debugger;
alert(response);
}
function OnError(error) {
alert(error);
}
</script>
<script language="C#" runat="server">
[System.Web.Services.WebMethod(EnableSession = true)]
[System.Web.Script.Services.ScriptMethod(UseHttpGet = true, ResponseFormat = System.Web.Script.Services.ResponseFormat.Json)]
public static string yourmethod()
{
var settings = new Microsoft.AspNet.FriendlyUrls.FriendlyUrlSettings();
settings.AutoRedirectMode = Microsoft.AspNet.FriendlyUrls.RedirectMode.Off;
string json = Newtonsoft.Json.JsonConvert.SerializeObject("Allow user");
return json;
}
[System.Web.Services.WebMethod(EnableSession = true)]
[System.Web.Script.Services.ScriptMethod(UseHttpGet = true, ResponseFormat = System.Web.Script.Services.ResponseFormat.Json)]
public static string yourmethod1()
{
//string json = Newtonsoft.Json.JsonConvert.SerializeObject("Allow user");
// or
return "Allow user";
}
</script>
</head>
<body>
<form id="form1" runat="server" >
<div>
<asp:ScriptManager runat="server" EnablePageMethods="true" EnablePartialRendering="true" > </asp:ScriptManager>
<input id="Button1" type="button" value="button" onclick="return GreetingsFromServer();" />
<input id="Button2" type="button" value="button" onclick="return CallMethod();" />
</div>
</form>
</body>
</html>
Web.conf - Web.conf -
<configuration>
<appSettings>
<add key="owin:AutomaticAppStartup" value="false" />
</appSettings>
<system.web>
<compilation debug="true" targetFramework="4.5.2" />
<httpRuntime targetFramework="4.5.2" />
<authorization>
<allow users="*"/>
</authorization>
</system.web>
</configuration>
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