如何在 asp.net C# 中使用 ajax 调用 C# 方法？答案

【问题标题】：How to call a C# method using ajax in asp.net C#?如何在 asp.net C# 中使用 ajax 调用 C# 方法？
【发布时间】：2015-08-02 09:16:30
【问题描述】：

我有一个会议表数据，我正在使用它发送到服务器端页面检查我的 url 并告诉我为什么呼叫不成功，即使数据传递正确这是我的ajax调用

    $.ajax({
             type: 'POST',
             contentType: "application/json; charset=utf-8",
             url: 'AddNewMeeting.aspx/SaveMeetingShechudar',
             dataType: 'json',
             data: JSON.stringify(Meeting),
             success: function (response) {
                 alert("success ");
             },
             error: function (jqXHR, textStatus, errorThrown)   //what to do if fails
             {
                 //  alert('bad, ' + errorThrown + ", " + jqXHR.responseText + ", " + textStatus);
                 alert("success failed ");

             },
         });

这是我的 AddNewMeeting.aspx 文件的代码

  public static void SaveMeetingShechudar(string MDate, string MTime, int MPurpose, int masterID, int RowNumber, string[] name, string[] nic, string[] designation, string[] company, string[] address)
    {
        int mID = 0;
        try
        {

            #region master part save
            MeetingSchedulMaster master = new MeetingSchedulMaster();
            master.m_date = Convert.ToDateTime(MDate);
            master.m_datetime = MTime;
            master.m_host = UserID;
            master.m_puposeid = Convert.ToInt32(MPurpose);
            master.m_entry_date = DateTime.Now;

            if (masterID == 0)
                saveDataMaster(master);
            else
            {
                master.mid = masterID;
                UpdateData(master);

            }
            #endregion
            #region detail part save
            if (MasterIDForUpdation == 0)
                mID = GetMaxMeetinNumber_ID("2");
            else
                mID = masterID;

            for (int i = 1; i <= RowNumber; i++)
            {
                MeetingSchedulDetail detail = new MeetingSchedulDetail();
                //TableRow row = tbladdnewmeeting.Rows[i-1];
                detail.name = name[i];
                detail.cnic = nic[i];
                detail.designation = designation[i];
                detail.company = company[i];
                detail.address = address[i];
                detail.mid = mID;
                saveDataDetail(detail);


            }

        }
        catch (Exception e) { }

  }

错误 http://localhost:57927/forms/AddNewMeeting.aspx/SaveMeetingShechudar 500（内部服务器错误）

【问题讨论】：

Internal server error 表示服务器端代码有问题

标签： c# jquery asp.net ajax json

【解决方案1】：

尝试添加 [WebMethod] 属性。它位于 System.Web.Services 命名空间中：

**[WebMethod]**
public static void SaveMeetingShechudar(string MDate, string MTime, int MPurpose, int masterID, int RowNumber, string[] name, string[] nic, string[] designation, string[] company, string[] address)
{
    int mID = 0;
     try
        {

        #region master part save
        MeetingSchedulMaster master = new MeetingSchedulMaster();
        master.m_date = Convert.ToDateTime(MDate);
        master.m_datetime = MTime;
        master.m_host = UserID;
        master.m_puposeid = Convert.ToInt32(MPurpose);
        master.m_entry_date = DateTime.Now;

        if (masterID == 0)
            saveDataMaster(master);
        else
        {
            master.mid = masterID;
            UpdateData(master);

        }
        #endregion
        #region detail part save
        if (MasterIDForUpdation == 0)
            mID = GetMaxMeetinNumber_ID("2");
        else
            mID = masterID;

        for (int i = 1; i <= RowNumber; i++)
        {
            MeetingSchedulDetail detail = new MeetingSchedulDetail();
            //TableRow row = tbladdnewmeeting.Rows[i-1];
            detail.name = name[i];
            detail.cnic = nic[i];
            detail.designation = designation[i];
            detail.company = company[i];
            detail.address = address[i];
            detail.mid = mID;
            saveDataDetail(detail);


        }

    }
    catch (Exception e) { }

}

【讨论】：