Question

我在使用Ajax将动态数据发布到ASP.NET Code Behind函数时遇到错误500内部错误。我不明白我哪里错了。请帮助。

我的Ajax代码：

function SaveData() {
            // Check What's Getting Updated
            for(var i in changedData){
                console.log(changedData[i]);
            }

            // Ajax Call
            $.ajax({
                type: "POST",
                url: "StudentHandsOn.aspx/SaveData",
                dataType: "json",
                contentType: "application/json; charset=utf-8",
                data: JSON.stringify(changedData),

                success: function (changes) {
                    console.log('Data Updated: '+changedData);
                },
                error: function (thrownError) {
                    alert("Error" + thrownError);
                }
            });
        }

我的C＃CodeBehind是：

[WebMethod]
public static void SaveData(List<Student> students)
{
    StudentHandsOn handsOn = new StudentHandsOn();

    handsOn.displayMessage();
}

public void displayMessage()
{
    Response.Write("<script>alert('Function Called.... Working Fine ');</script>");
}

我已经使用SaveData中的for循环检查了ChangedData数组中的内容，并且运行正常。

["st_01", "Albert              ", 3, "CE                  ", "Angela              ", 70, 90, 90, 250, 83.33333333333333, "B    "] StudentHandsOn.aspx:218
["st_02", "Inger               ", 2, "CE                  ", "Angela              ", 67, 98, 99, 264, 88, "B    "] StudentHandsOn.aspx:218

POST http://localhost:53600/StudentHandsOn.aspx/SaveData 500（内部服务器错误）

更新

我在代码中添加了几行代码：

var studentData = JSON.stringify(changedData) ;

console.log(studentData);

并将SaveData方法中的Parameter类型更改为List。我在控制台中输出为。

[["st_01","Albert              ",3,"CE                  ","Angela              ",70,90,90,250,83.33333333333333,"B    "],["st_02","Inger               ",2,"CE                  ","Angela              ",67,98,99,264,88,"B    "],["st_03","Hamlet              ",1,"EE                  ","Emily               ",60,60,60,180,60,"D    "],["st_04","Jiny                ",4,"CS                  ","Vannila             ",100,80,70,250,83.33333333333333,"B    "]] StudentHandsOn.aspx:218

POST http://localhost:53600/StudentHandsOn.aspx/SaveData 500（内部服务器错误）

我现在正在获得一个数组数组。如何将此代码传递给方法？

Answer 1

尝试将数据代码更改序列化为：

data: '{"students": "' +  JSON.stringify(changedData) + '"}',

使用Ajax将Handsontable数据传递到ASP.NET函数时出现错误500

1 个答案: