在输入类型提交按钮上调用C#方法

时间:2016-04-26 20:14:01

标签: javascript c# html asp.net

我在查找如何调用我在.CS文件中编写的方法时会遇到一些麻烦,该文件会更新数据库中的用户密码。

这是我目前的表格:

 <form method="post" action="#" runat="server" name="edit_password_form">
    <div id="edit_password_popup">
        <table width="390" align="center" padding="10">
            <tr>
                <td><span class="error_field">*</span>Password:<br>
                    <input type="password" name="password_1" id="password_1" size="19" maxlength="30" autocapitalize="off" autocorrect="off" autocomplete="off">
                </td>
                <td><span class="error_field">*</span>Confirm Password:<br>
                    <input type="password" name="password_2" id="password_2" size="19" maxlength="30" autocapitalize="off" autocorrect="off" autocomplete="off">
                </td>
            </tr>

             <tr>
                <td><input type="submit" value="Add Password" id="add_pass" alt="Add Password" border="0"></td>
                <td><input type="button" value="No Thanks" id="no_thanks" alt="No Thanks" border="0"></td>
             </tr>
        </table>
    </div>
</form>

我是否应该在.aspx文件中使用c#方法而不是.aspx.cs?

我希望在单击add_pass按钮时运行C#方法。关于如何实现这一目标的任何想法?

3 个答案:

答案 0 :(得分:5)

您似乎正在使用ASP.NET Web窗体(因为您有一个实际的ASPX文件)。

如果是这种情况,ASP.NET会为您处理相当多的事情,并且实际上会对自己执行POST,这样就可以在代码隐藏中访问其内容。

您可以考虑将现有的submit按钮替换为实际的<asp:Button>按钮,该按钮指向在发布表单时在代码隐藏中遇到的特定方法:

<asp:Button ID="AddPassword" Text="Add Password" ... OnClick="AddPassword_Click"><asp:Button>

OnClick事件会处理将您点击的按钮映射到aspx.cs文件中的事件,该事件如下所示:

protected void AddPassword_Click(object sender, EventArgs e)
{
        // This code will be executed when your AddPassword Button is clicked
}

如果用相关的ASP.NET代码替换整个代码,它将类似于以下部分:

<强> YourPage.aspx

<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="YourPage.aspx.cs" Inherits="YourProject.YourPage" %>

<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
    <title>Password Checking</title>
</head>
<body>
<!-- This will post back to your YourPage.aspx.cs code-behind -->
<form id="form1" runat="server" name="edit_password_form">
<div id="edit_password_popup">
    <table width="390" align="center" padding="10">
        <tr>
            <td><span class="error_field">*</span>Password:<br />
                <!-- Replaced <input> elements with matching <asp:TextBox> controls -->
                <asp:TextBox ID="Password1" runat="server" TextMode="Password" size="19" maxlength="30" autocapitalize="off" autocorrect="off" autocomplete="off"></asp:TextBox>
            </td>
            <td><span class="error_field">*</span>Confirm Password:<br>
                <asp:TextBox ID="Password2" runat="server" TextMode="Password" size="19" maxlength="30" autocapitalize="off" autocorrect="off" autocomplete="off"></asp:TextBox>
            </td>
         </tr>
         <tr>
            <td>
                <!-- Updated submit button to proper <asp:Button> -->
                <asp:Button ID="AddPassword" runat="server" Text="Add Password" OnClick="AddPassword_Click" alt="Add Password" border="0"><asp:Button>
            </td>
            <td>
                <input type="reset" value="No Thanks" id="no_thanks" alt="No Thanks" border="0" />
            </td>
         </tr>
    </table>
</div>
</form>
</body>
</html>

<强> YourPage.aspx.cs

public partial class YourPage : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {

    }

    // This will get called when your form is submitted
    protected void AddPassword_Click(object sender, EventArgs e)
    {
        // When your page is posted back, compare your passwords
        if(String.Equals(Password1.Text,Password2.Text))
        {
            // Your passwords are equal, do something here
        }
        else
        {
            // They aren't equal, do something else
        }
    }
}

答案 1 :(得分:0)

如果您将onclick事件添加到您的代码中,它应该适用于

<input type="submit" value="Add Password" id="add_pass" onclick="AddPassword_Click" alt="Add Password" border="0">

当您的代码在服务器端运行时,请使用onserverclick=...

答案 2 :(得分:0)

如果你想保留输入类型按钮,那么你可以使用runat =&#34; server&#34;和onclick =&#34; MyMethod&#34;。例如:

< input type="submit" runat="server" value="Add Password" id="add_pass" alt="Add Password" onclick="Add_Pass_Click" on border="0" >
在你的标记中

,并使用处理程序:

using MyClass.cs; 

protected void Add_Pass_Click(object sender, EventArgs e)
{
    MyClass.DoSomeStuff(); //maybe, it's static
}

也就是说,如果我理解你的问题。 参考:http://www.codeproject.com/Questions/571190/howplustopluscodeplusinputplustypeplusbuttonpluscl