C# Dotnetnuke-如何使用Ajax在代码隐藏中调用方法

这是剧本

<script type="text/jscript">
function ajaxcall(e) {
    $.ajax({
        type: "POST",
        url: "/DesktopModules/Modules/Admin/City/AddCity.ascx/GetMethod",
        contentType: "application/json; charset=utf-8",
        data: JSON.stringify({ value: "Vinay" }),
        dataType: "json",
        success: function (value) {
            alert(value.d);
        },
        error: function () { alert("Ajax Error"); }
    });
};

当我从按钮调用函数时。它显示js警报Ajax错误

---

我曾尝试用AddCity.ascx/GetMethod替换/DesktopModules/Modules/Admin/City/AddCity.ascx/GetMethod，但仍然不起作用

不能从ASCX usercontrol调用WebMethod-IIS不允许这样做。它必须在ASPX页面中

如果不需要任何安全性，可以创建一个通用处理程序.ASHX文件

public class CityHandler : IHttpHandler
{
    public void ProcessRequest(HttpContext context)
    {
        var fn = context.Request.QueryString["action"];
        var newCity = context.Request.QueryString["city"];

        if (fn == "add")
        {
            // TODO: add city
        }
        context.Response.ContentType = "text/plain";
        context.Response.Write("OK");
    }

    public bool IsReusable
    {
        get { return false; }
    }
}

然后更改ajax代码：

$.ajax({
    type: "GET",
    url: "/DesktopModules/Modules/Admin/City/CityHandler.ashx?action=add&city=Vinay",
    success: function (value) {
        alert(value);
    },
    error: function () { alert("Ajax Error"); }
});

---

谢谢，我想这对我有用。谢谢你的信息。

public class CityHandler : IHttpHandler
{
    public void ProcessRequest(HttpContext context)
    {
        var fn = context.Request.QueryString["action"];
        var newCity = context.Request.QueryString["city"];

        if (fn == "add")
        {
            // TODO: add city
        }
        context.Response.ContentType = "text/plain";
        context.Response.Write("OK");
    }

    public bool IsReusable
    {
        get { return false; }
    }
}

$.ajax({
    type: "GET",
    url: "/DesktopModules/Modules/Admin/City/CityHandler.ashx?action=add&city=Vinay",
    success: function (value) {
        alert(value);
    },
    error: function () { alert("Ajax Error"); }
});