编译器错误消息 ASP.NET

Question

在尝试运行我的 ASP.NET 程序时，我收到以下错误消息：

编译器错误消息：CS1061：“ASP.about_aspx”不包含“btnRunReports_Click”的定义，并且找不到接受“ASP.about_aspx”类型的第一个参数的扩展方法“btnRunReports_Click”（您是否缺少使用指令还是程序集引用？）

下面的第 18 行似乎是问题所在，但我不知道为什么。

Line 16:        </p>

第 17 行：

第 18 行：<asp:Button ID="btnRunReports" runat="server" Text="Run Reports" onclick="btnRunReports_Click" />
第 19 行：

第 20 行：<p><asp:Button ID="IdSort" runat="server" Text="Sort" onclick="IdSort_Click" />

在运行报告按钮上，我有以下代码：

 protected void btnRunReports_Click(object sender, EventArgs e)
   {
       RunReport();
   }

然后

 public void RunReport()
   {
       Application.Lock();
      // lb1 = (SaleList)Application["SaleList"];
       TextReportGenerator trg = new TextReportGenerator(saleList);
       trg.GenerateAllReport("report.txt");
       Application.UnLock();
   }

我不知道如何解决这个错误，我在第 18 行的 .cs 中没有错误，非常感谢一些指导。

这是 About.aspx.cs

`using System;
 using System.Collections.Generic;
 using System.Linq;
 using System.Web;
 using System.Web.UI;
 using System.Web.UI.WebControls;
 using System.IO;
 using Antiques;
 using AntiqueSale;


 namespace Antiques

 {
public partial class About : System.Web.UI.Page, ISaleManagerUI
{
    SaleList saleList;

    protected void Page_Load(object sender, EventArgs e)
    {
        try
        {
            if (!ReferenceEquals(null, Session["ID"]))
            {
                Sale sale = new Sale((string)Session["ID"], (DateTime)Session["Date"], (string)Session["Location"], (double)Session["Picth Cost"], (int)Session["Num Pitches"],
                    (bool)Session["Charity"], (string)Session["Charity Name"], (bool)Session["Catering"]);

                saleList = (SaleList)Application["SaleList"];

                saleList.addSale(sale);

                Application["SaleList"] = saleList;

                UpdateListbox();
            }
        }
        catch (DuplicateIdException)
        {
           UpdateListbox();
        }
        lblerror.Text = null;
    }


    public void LoadData()
    {
        try
        {
            Application.Lock();
            SerializeFileHandler sr = new SerializeFileHandler();
            Application["Antiques Sale"] = sr.ReadSaleListFromFile("data.dat");
            UpdateListbox();
            Application.UnLock();
        }
        catch (FileNotFoundException)
        {
            lblerror.Text = "Error: Not found, must save first";
        }
    }

    protected void Load_Click(object sender, EventArgs e)
    {
        LoadData();
    }

    public void AddData()
    {
        var response = base.Response;

        response.Redirect("Default.aspx", true);
    }

    protected void btnAddBox_Click(object sender, EventArgs e)
    {
        AddData();
    }

    public void getSale()
    {

    }

    public void UpdateListbox()
    {
        Application.Lock();
        lb1.Items.Clear();
        saleList = (SaleList)Application["SaleList"];    
        for (int i = 0; i < saleList.Count(); i++)
        {
           // ListItem lst1 = new ListItem(lb1.saleList(i).ToString(), i.ToString());
           // lst1.Items.Add(lb1);
        }
        Application.UnLock();
   }

    protected void lb1_Init(object sender, EventArgs e)
    {
        UpdateListbox();
    }


    protected void Delete_Click(object sender, EventArgs e)
    {
        while (lb1.SelectedIndex != -1)
        {
            ListItem mySelectedItem = (from ListItem li in lb1.Items where li.Selected == true select li).First();
            lb1.Items.Remove(mySelectedItem);
        }
    }

    protected void lb1_SelectedIndexChanged(object sender, EventArgs e)
    {

    }

    public void SaveData()
    {
        saleList = (SaleList)Application["SaleList"];
        if (saleList.Count() != 0)
        {
            Application.Lock();
            SerializeFileHandler sr = new SerializeFileHandler();
            sr.WriteSaleListToFile((SaleList)Application["SaleList"], "data.dat");
            Application.UnLock();
        }
        else
        {
            lblerror.Text = "Error: You need to enter data into the list";
        }
    }

    protected void Save_Click(object sender, EventArgs e)
    {
        SaveData();
    }

    protected void IdSort_Click(object sender, EventArgs e)
    {
        SortData();
    }


   public void SortData()
    {
       // var item = lb1.getItem(0);
       // var index = item.get_index();
       // lb1.reorderItem(item, index - 1);
    }

   public void RunReport()
   {
       Application.Lock();
      // lb1 = (SaleList)Application["SaleList"];
       TextReportGenerator trg = new TextReportGenerator(saleList);
       trg.GenerateAllReport("report.txt");
       Application.UnLock();
   }


   protected void btnRunReports_Click(object sender, EventArgs e)
   {
       RunReport();
   }




}

} `

Answer 1

您的页面指令错误。它需要是这样的：

<%@ Page Title="About Us" Language="C#" MasterPageFile="~/Site.master" AutoEventWireup="true" CodeBehind="Antiques.About.aspx.cs" Inherits="Antiques.About" %>