'InsertButton_Click'没有重载匹配委托'System.EventHandler'[错误]

本文介绍了'InsertButton_Click'没有重载匹配委托'System.EventHandler'[错误]的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！

问题描述

为什么我的事件处理不起作用？我收到了这个错误。我正在运行VS 2008 / .NET 3.5 SP1 / Win XP，以防万一源代码可用。

错误1'InsertButton_Click'没有重载匹配委托'System.EventHandler'c：\inetpub \wwwroot \ Jon的Couch \ Articles.aspx.cs 21 31 http：// localhost / Jon's Couch /

Articles.aspx

How come my event handling is not working? I'm getting this error. I'm running VS 2008 / .NET 3.5 SP1 / Win XP, and, just in case the source code is available here.

Error1No overload for 'InsertButton_Click' matches delegate 'System.EventHandler'c:\inetpub\wwwroot\Jon's Couch\Articles.aspx.cs2131http://localhost/Jon's Couch/

Articles.aspx

<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Articles.aspx.cs" Inherits="Articles" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head1" runat="server">
    <link href="StyleSheet.css" rel="stylesheet" type="text/css" />
    <title>@Jon's</title>
</head>
<body>
    <form id="form1" runat="server">
    <h1>@Jon's <img src="images/sofa.jpg" alt="logo"/> </h1 >
    <div style="float:left;width:122px">
        <p style="width: 122px; height: 663px; margin-top: 0px; margin-right: 0px;">
        <a href="About.aspx">About me</a> <br />
        <a href="Diary.aspx">My diary</a> <br />
        <a href="Articles.aspx">Articles</a> <br />
        <a href="Bookmarks.aspx">My bookmarks</a> <br />
        <a href="Promotions.aspx">Promotions</a> <br />
        <a href="Resume.aspx">My resume</a> <br />
        <a href="Warez.aspx">Filesharing</a> <br />
        </p>
      </div>
   <div>
   <asp:FormView ID="Envelope" runat="server" DataSourceID="SqlDataSource1"

            AllowPaging="True">
        <HeaderTemplate>
        </HeaderTemplate>
        <EditItemTemplate>
            Timestamp:
            <asp:TextBox ID="TimestampTextBox" runat="server"

                Text='<%# Bind("Timestamp") %>' />
            <br />
            Subject:
            <asp:TextBox ID="SubjectTextBox" runat="server" Text='<%# Bind("Subject") %>' />
            <br />
            EntryText:
            <asp:TextBox ID="EntryTextTextBox" runat="server"

                Text='<%# Bind("EntryText") %>' />
            <br />
            <asp:LinkButton ID="UpdateButton" runat="server" CausesValidation="True"

                CommandName="Update" Text="Update" />
            &nbsp;<asp:LinkButton ID="UpdateCancelButton" runat="server"

                CausesValidation="False" CommandName="Cancel" Text="Cancel" />
            <asp:Button ID="Edit" runat="server" Text="Edit" CommandName="edit" /> <br />
            <asp:Button ID="New" runat="server" Text="New" CommandName="new" /> <br />
        </EditItemTemplate>
         <InsertItemTemplate>
             Timestamp:
             <asp:TextBox ID="TimestampTextBox" runat="server"

                 Text='<%# Bind("Timestamp") %>' />
             <br />
             Subject:
             <asp:TextBox ID="SubjectTextBox" runat="server" Text='<%# Bind("Subject") %>' />
             <br />
             EntryText:
             <asp:TextBox ID="EntryTextTextBox" runat="server"

                 Text='<%# Bind("EntryText") %>' />
             <br />
             <asp:LinkButton ID="InsertButton" runat="server" CausesValidation="True"

                 CommandName="Insert" Text="Insert" OnClick="InsertButton_Click" />
             &nbsp;<asp:LinkButton ID="InsertCancelButton" runat="server"

                 CausesValidation="False" CommandName="Cancel" Text="Cancel" />
        </InsertItemTemplate>
        <ItemTemplate>
            Timestamp:
            <asp:Label ID="TimestampLabel" runat="server" Text='<%# Bind("Timestamp") %>' />
            <br />
            Subject:
            <asp:Label ID="SubjectLabel" runat="server" Text='<%# Bind("Subject") %>' />
            <br />
            EntryText:
            <asp:Label ID="EntryTextLabel" runat="server" Text='<%# Bind("EntryText") %>' />
            <br />
        </ItemTemplate>
 </asp:FormView>
     <asp:SqlDataSource ID="SqlDataSource1" runat="server"

                ConnectionString="<%$ ConnectionStrings:couch_dbConnectionString %>"

                SelectCommand="SELECT [Timestamp], [Subject], [EntryText] FROM [Article]"

                UpdateCommand="UPDATE [Article] SET [Timestamp] = @Timestamp, [Subject] = @Subject, [EntryText] = @EntryText"

                InsertCommand="INSERT INTO [Article] ([EntryID], [Timestamp], [Subject], [EntryText]) VALUES @EntryID, @Timestamp, @Subject, [EntryText]">
           </asp:SqlDataSource>
   </div>
</form>
</body>
</html>

Articles.aspx.cs

using System;
using System.Collections;
using System.Configuration;
using System.Data;
using System.Data.SqlClient;
using System.Linq;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.HtmlControls;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Xml.Linq;
using System.Web.Configuration;
public partial class Articles : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {
        this.Title = "Jon's Couch";
    }
    protected delegate EventHandler InsertButton_Click (object sender, FormViewCommandEventArgs e);
    InsertButton_Click += new System.EventHandler(this.InsertButton_Click);
    protected void InsertButton_Click(object sender, FormViewCommandEventArgs e)
    {
        if (e.CommandName == "new")
        {
            Envelope.DefaultMode = FormViewMode.Insert;
        }
    }
}

:confused:

articles

'InsertButton_Click'没有重载匹配委托'System.EventHandler'[错误]

问题描述

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