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[英]PageMethods to retrieve session from page in iframe not working
[英]PAGEMETHODS is not working from JS function
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
}
所以为了找到这个问题,我做了一些负面测试
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!!!
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..
注意:我在表单声明中有“method=post”..它会影响 pagemethods 吗..
很困惑为什么会发生这个问题!!!
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!!!
在msnd 中,您可以看到此示例,因此您需要...
在标记中:
<asp:ScriptManager ID="sm" runat="server" EnablePageMethods="true">
<Scripts >
<asp:ScriptReference Path="pm.js" />
</Scripts>
</asp:ScriptManager>
在后面的代码中:您的静态方法,具有[WebMethod]
属性
在pm.js
:像这样
function example(){
PageMethods.method();
}
更新
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
});
}
也许您的 aspx 页面中可能缺少 EnablePageMethods = true ...
下面给定的代码对我有用。
。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 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 -
<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>
这种方法也有效——
.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 -
<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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