javascript之将参数从 ajax 函数传递到 aspx.cs 文件

我已经用 HTML、JS 和 AJAX 创建了一些代码，但它无法按我希望的方式运行。

<script type="text/javascript"> 
function DeleteSelectedRecord(id) { 
            alert(id); 
            $.ajax({ 
                type: "POST", 
                url: "PrintTasks.aspx/DeleteRecord", 
                data: '{"id":"' + id + '"}', 
                contentType: "application/json; charset=utf-8", 
                dataType: "json", 
                success: function () { 
                    alert("Deleted!"); 
                }, 
                failure: function () { 
                    alert("Failure!"); 
                } 
            }); 
 
        } 
    function CreateATableFromDataBase() { 
        var deserializedData = '<%=serializedList %>'; 
            deserializedData = JSON.parse(deserializedData); 
            for (var i = 0; i < deserializedData.length; i++) { 
                document.write( 
                    "<tr>" + 
                    "<th scope=\"row\">" + i.toString() + "</th>" + 
                    "<th>" + deserializedData[i]["Name"] + "</th>" + 
                    "<th>" + deserializedData[i]["Where"] + "</th>" + 
                    "<th>" + deserializedData[i]["Destination"] + "</th>" + 
                    "<th><input type=\"button\" class=\"btn btn-primary\" onclick=\"DeleteSelectedRecord(" + deserializedData[i]["Id"] + ")\" value=\"Delete\"/></th>" + 
                    "</tr>" 
                ); 
            } 
    } 
</script> 

第二个函数将参数“id”传递给第一个函数。我已经使用警报方法来检查它是否至少正常工作。确实如此。当我想将参数传递给 PrintTasks.aspx.cs 文件中名为 DeleteRecord 的 super 方法时，问题就开始了...

[System.Web.Services.WebMethod] 
    public static void DeleteRecord(int id) 
    { 
        very sophisticated code... 
    } 

里面有什么并不重要。最奇怪的是它不读取我的参数。

谢谢!

请您参考如下方法:

Just change This Line of code. It will work

 data: '{"id":"' + id + '"}', 

Change to

 data: { id:id}, 

First id is the parameter name you set in .cs file method.. and second one is value you are going to pass...